TWI678023B - Antenna structure and wireless communication device with same - Google Patents

Abstract

An antenna structure includes a frame and at least one feed source, the frame is made of a metal material, one side of the frame is convexly provided with a protruding portion, and one side of the frame is provided with a protruding portion. A breakpoint and a second breakpoint, the first breakpoint and the second breakpoint both penetrate and cut off the frame, thereby dividing at least two radiating portions from the frame, and the at least one feeds into the source power The at least two radiating portions are connected to feed current to the at least two radiating portions.

Description

Antenna structure and wireless communication device having the same

The invention relates to an antenna structure and a wireless communication device having the antenna structure.

At present, most electronic devices, such as mobile phones and personal digital assistants, have realized full-screen designs. However, due to the limitation of optical modules or other electronic components, the design of special-shaped screens will also appear, so that the full screen cannot be presented. In addition, how to not compress the antenna headroom under full-screen design conditions is also an important issue for antenna design.

In view of this, it is necessary to provide an antenna structure and a wireless communication device having the antenna structure.

An antenna structure includes a frame and at least one feed source, the frame is made of a metal material, one side of the frame is convexly provided with a protruding portion, and one side of the frame is provided with the protruding portion. A first breakpoint and a second breakpoint, the first breakpoint and the second breakpoint both penetrate and cut off the frame, and further divide at least two radiation portions from the frame, and the at least one feed source The at least two radiating portions are electrically connected to feed current to the at least two radiating portions.

A wireless communication device includes the antenna structure described above.

The antenna structure and the wireless communication device having the antenna structure are provided with corresponding protrusions on the frame. In this way, the protruding portions can accommodate corresponding electronic components (such as optical modules), and the display unit of the wireless communication device forms a complete display plane, that is, a complete screen is presented. In addition, under the condition of full screen, there is no need to compress the headroom of the antenna structure, which is more beautiful and practical.

100, 100a, 100b‧‧‧ Antenna Structure

11‧‧‧shell

110‧‧‧ border

111‧‧‧ back plate

113‧‧‧accommodation space

114‧‧‧first end

115‧‧‧ second end

116‧‧‧First side

117‧‧‧ second side

119‧‧‧ protrusion

120, 120b‧‧‧ the first breakpoint

121, 121a, 121b‧‧‧ Second breakpoint

A1, A1a, A1b‧‧‧First Radiation Department

A2, A2b‧‧‧Second Radiation Department

A3‧‧‧Third Radiation Department

12, 12a‧‧‧First feed source

13‧‧‧Connecting Department

14, 14a‧‧‧ Ground

15‧‧‧ matching circuit

151‧‧‧First matching element

153‧‧‧Second matching element

155‧‧‧ third matching element

157‧‧‧Fourth matching element

17‧‧‧switching circuit

171‧‧‧Switch unit

173‧‧‧switching element

18‧‧‧ load circuit

19, 19b‧‧‧Second feed source

19a, 19c‧‧‧ matching unit

200, 200a, 200b‧‧‧ wireless communication device

201‧‧‧display unit

202‧‧‧Display plane

21‧‧‧ substrate

211‧‧‧headroom

23‧‧‧Electronic components

FIG. 1 is a partial exploded view of an antenna structure applied to a wireless communication device according to a first preferred embodiment of the present invention.

FIG. 2 is an assembly diagram of the front side of the wireless communication device shown in FIG. 1.

FIG. 3 is an assembly diagram of the back surface of the wireless communication device shown in FIG. 1.

FIG. 4 is a circuit diagram of an antenna structure in the wireless communication device shown in FIG. 1.

FIG. 5 is a circuit diagram of a matching circuit in the antenna structure shown in FIG. 4.

FIG. 6 is a schematic diagram of a current flow during the operation of the antenna structure shown in FIG. 4.

FIG. 7 is a circuit diagram of a switching circuit in the antenna structure shown in FIG. 4.

FIG. 8 is a graph of S parameters (scattering parameters) of the antenna structure when the length from the first breakpoint to the first side in the antenna structure shown in FIG. 4 is adjusted.

FIG. 9 is a graph of S parameters (scattering parameters) of the antenna structure when the length from the second breakpoint to the second side in the antenna structure shown in FIG. 4 is adjusted.

FIG. 10 is a graph of S parameters (scattering parameters) of the antenna structure when the switching circuit shown in FIG. 4 is switched to different switching elements.

FIG. 11 is a total spoke of the antenna structure when the switching circuit shown in FIG. 4 is switched to different switching elements Radio efficiency curve.

FIG. 12 is a schematic diagram of an antenna structure applied to a wireless communication device according to a second preferred embodiment of the present invention.

FIG. 13 is a schematic diagram of an antenna structure applied to a wireless communication device according to a third preferred embodiment of the present invention.

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those with ordinary knowledge in the art without any creative labor belong to the protection scope of the present invention.

It should be noted that when an element is called "electrically connected" to another element, it may be directly on the other element or there may be a centered element. When an element is considered to be "electrically connected" to another element, it can be a contact connection, for example, a wire connection method, or a non-contact connection method, for example, a non-contact coupling method.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to the drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

Please refer to FIG. 1, FIG. 2 and FIG. 3. The first preferred embodiment of the present invention provides an antenna structure 100 that can be applied to wireless communication devices 200 such as mobile phones and personal digital assistants. Used to transmit and receive radio waves to transmit and exchange wireless signals.

The antenna structure 100 includes at least a housing 11, a first feed source 12 (see FIG. 4), a connection portion 13, and a ground portion 14. The casing 11 may be a casing of the wireless communication device 200. The casing 11 includes at least a frame 110 and a back plate 111. The frame 110 is substantially a ring structure and is made of a metal material. An opening (not shown) is provided on one side of the frame 110 for receiving the display unit 201 of the wireless communication device 200. It can be understood that the display unit 201 includes a complete unnotched display plane 202. The display plane 202 is exposed through the opening.

The back plate 111 is made of a non-metal material, such as plastic, ceramic or glass. The back plate 111 is disposed on an edge of the frame 110 and is disposed substantially parallel to the display plane 202 of the display unit 201. It can be understood that, in this embodiment, the back plate 111 and the frame 110 together form an accommodating space 113. The accommodating space 113 is used for accommodating electronic components or circuit modules such as a substrate and a processing unit of the wireless communication device 200 therein.

The frame 110 includes at least a first end portion 114, a second end portion 115, a first side portion 116, and a second side portion 117. In this embodiment, the first end portion 114 may be a top end of the wireless communication device 200. The second end portion 115 may be a bottom end of the wireless communication device 200. The first end portion 114 is opposite to the second end portion 115. The first side portion 116 and the second side portion 117 are disposed opposite to each other, and the two are disposed at both ends of the first end portion 114 and the second end portion 115 respectively, and are preferably disposed vertically. The first end portion 114, the second end portion 115, the first side portion 116, and the second side portion 117 are all connected to the back plate 111 and the display unit 201.

The frame 110 is further provided with a protruding portion 119, a first break point 120 and a second break point 121. In this embodiment, the protruding portion 119 is disposed near the first end portion 114 near the first end portion 114. One side of the first side portion 116 is formed to extend away from the second end portion 115. The first breakpoint 120 and the second breakpoint 121 are both disposed at the first end portion 114. The first breakpoint 120 is disposed on the protruding portion 119. The second break point 121 is disposed on one side of the first end portion 114 near the second side portion 117 and is disposed at a distance from the first break point 120. The first breakpoint 120 and the second breakpoint 121 both cut off the frame 110. In this way, the first breakpoint 120 and the second breakpoint 121 collectively separate the corresponding first radiation portion A1, the second radiation portion A2, and the third radiation portion A3 from the frame 110. Wherein, the frame 110 between the first breakpoint 120 and the second breakpoint 121 forms the first radiation portion A1. The frame 110 extending from the first breakpoint 120 to the first side portion 116, that is, a part of the protruding portion 119 forms the second radiation portion A2. The frame 110 extending from the second break point 121 to the second side portion 117 forms the third radiation portion A3. That is, in this embodiment, the protruding portion 119 will constitute a radiation portion of the antenna structure 100.

It can be understood that, in this embodiment, the first breakpoint 120 and the second breakpoint 121 are both filled with an insulating material (such as plastic, rubber, glass, wood, ceramic, etc., but not limited thereto). .

In this embodiment, the size of the wireless communication device 200 is approximately 70mm * 148.5mm * 8mm. The wireless communication device 200 further includes a substrate 21 and an electronic component 23. The substrate 21 is a printed circuit board (PCB), which can be made of a dielectric material such as epoxy glass fiber (FR4). The substrate 21 is disposed in the accommodating space 113. One end of the substrate 21 and the first end portion 114 are spaced apart, and a corresponding clearance area 211 is formed between the two.

In this embodiment, the electronic component 23 is an optical module.所述 电子 元 The electronic element The member 23 is disposed in the protruding portion 119 and is electrically connected to the substrate 21. It can be understood that, in this embodiment, the optical module may include at least one of a camera module, a fill-light LED, a light sensor, and a proximity sensor.

Please refer to FIG. 4 together. It can be understood that, in this embodiment, the widths of the first breakpoint 120 and the second breakpoint 121 are both G. The length of the frame 110 between the first breakpoint 120 and the second breakpoint 121 is L1. The length from the second break point 121 to the second side portion 117 is L2. The length from the first breakpoint 120 to the first side portion 116 is L3. The distance between the position where the first end portion 114 is not provided with the protruding portion 119 and the substrate 21 is D. Among them, in one embodiment, G is 1.5 mm, L1 is 43.7 mm, L2 is 14.7 mm, L3 is 22.2 mm, and D is 3.2 mm.

It can be understood that, in this embodiment, the first feed source 12 and the connection portion 13 are both disposed in the accommodation space 113. One end of the first feed source 12 is electrically connected to the first radiation portion A1 near one side of the second break point 121 through the connection portion 13, and the other end is grounded for the first radiation. Section A1 is fed with current.

The ground portion 14 is disposed in the accommodating space 113 and is located on a side of the first feed source 12 away from the second break point 121. The ground portion 14 is spaced from the first feed source 12. One end of the ground portion 14 is electrically connected to the first radiation portion A1, and the other end is grounded to provide ground for the first radiation portion A1.

Please refer to FIG. 4 and FIG. 5 together. It can be understood that, in this embodiment, the antenna structure 100 further includes a matching circuit 15. The matching circuit 15 is disposed on the substrate 21, and one end of the matching circuit 15 is electrically connected to the first feeding source 12. The other end of the matching circuit 15 is electrically connected to the connection portion 13 to be electrically connected to the first radiation portion A1 through the connection portion 13 to optimize the The impedance of the first feed-in source 12 and the first radiation portion A1 is matched.

In this embodiment, the matching circuit 15 includes a first matching element 151, a second matching element 153, a third matching element 155, and a fourth matching element 157. The first matching element 151 and the second matching element 153 are connected in series between the first feeding source 12 and the connecting portion 13. One end of the third matching element 155 is electrically connected between the first matching element 151 and the second matching element 153, and the other end is grounded. One end of the fourth matching element 157 is electrically connected between the first matching element 151 and the second matching element 153, and the other end is grounded. That is, the third matching element 155 and the fourth matching element 157 are arranged in parallel, and one end of both is electrically connected between the first matching element 151 and the second matching element 153, and the other end is grounded.

In this embodiment, the first matching element 151, the second matching element 153, and the fourth matching element 157 are all inductors. The third matching element 155 is a capacitor. The inductance values of the first matching element 151, the second matching element 153, and the fourth matching element 157 are 2nH, 1nH, and 3.9nH, respectively. The capacitance value of the third matching element 155 is 2.4 pF. Of course, in other embodiments, the first matching element 151, the second matching element 153, the third matching element 155, and the fourth matching element 157 are not limited to the capacitors and inductors described in the above item, and may be other Inductance, capacitance, or a combination thereof.

Understandably, please also refer to FIG. 6. When a current is fed from the first feed source 12, the current is directly fed to the first radiation through the matching circuit 15 and the connection portion 13. Part A1 and flows to the first breakpoint 120. In this way, the first feed source 12, the ground portion 14, and the first radiating portion A1 together constitute an inverted F-type antenna, thereby exciting a first working mode to generate a radiation signal in a first radiation frequency band ( See path P1). At the same time, the current flowing through the first radiating portion A1 is also coupled to the second radiating portion A2 through the first breakpoint 120, Furthermore, the second radiation part A2 is caused to excite a second working mode to generate a radiation signal in a second radiation frequency band (see path P2). Furthermore, the current flowing through the first radiating portion A1 is further coupled to the third radiating portion A3 through the second break point 121, so that the third radiating portion A3 excites a third working mode To generate a radiation signal in the third radiation band (see path P3).

In this embodiment, the first working mode is a low-frequency mode of an LTE-Advanced (LTE-Advanced), and the second working mode is an LTE-A intermediate frequency and a high-frequency mode. The third working mode is an LTE-A high-frequency mode. The frequency of the first radiation band is 700-960 MHz. The frequencies of the second radiation band are 1430-2170MHz and 2500-2690MHz. The frequency of the third radiation band is 2300-2400MHz.

Understandably, please refer to FIG. 4 and FIG. 7 together. In this embodiment, the antenna structure 100 further includes a switching circuit 17. One end of the switching circuit 17 is electrically connected to the ground portion 14 so as to be electrically connected to the first radiation portion A1 through the ground portion 14. The other end of the switching circuit 17 is grounded. The switching circuit 17 includes a switching unit 171 and a plurality of switching elements 173. The switching unit 171 is electrically connected to the ground portion 14 to be electrically connected to the first radiation portion A1 through the ground portion 14. Each switching element 173 may be an inductor, a capacitor, or a combination of an inductor and a capacitor. The switching elements 173 are connected in parallel with each other, and one end of each of the switching elements 173 is electrically connected to the switching unit 171, and the other end is grounded.

In this way, by controlling the switching of the switching unit 171, the first radiation portion A1 can be switched to a different switching element 173. Since each switching element 173 has a different impedance, the frequency of the first radiation band of the first working mode can be effectively adjusted by the switching of the switching unit 171. For example, in this embodiment, the switching circuit 17 may include three switching elements 173 with different impedances, such as an inductance with an inductance value of 20 nH, The 40nH inductor is open with no components connected, that is, floating. By switching the first radiating portion A1 to the three different switching elements 173, the first radiating frequency band of the first working mode in the antenna structure 100 can cover the 700-960 MHz frequency band.

Please refer to FIG. 8 together, which is a graph of S parameters (scattering parameters) of the antenna structure 100 when the length L3 of the first breakpoint 120 to the first side portion 116 is adjusted. The curve S81 is the S11 value of the antenna structure 100 when the length L2 from the first break point 120 to the first side portion 116 is 22.2 mm. The curve S82 is the S11 value of the antenna structure 100 when the length L2 from the first break point 120 to the first side portion 116 is 24.2 mm. The curve S83 is the S11 value of the antenna structure 100 when the length L2 from the first break point 120 to the first side portion 116 is 20.2 mm.

Please refer to FIG. 9 together, which is a graph of S parameters (scattering parameters) of the antenna structure 100 when the length L2 of the second break point 121 to the second side portion 117 is adjusted. The curve S91 is the S11 value of the antenna structure 100 when the length L3 of the second break point 121 to the second side portion 117 is 14.7 mm. The curve S92 is the S11 value of the antenna structure 100 when the length L3 of the second break point 121 to the second side portion 117 is 16.7 mm. The curve S93 is the S11 value of the antenna structure 100 when the length L3 of the second break point 121 to the second side portion 117 is 12.7 mm.

Obviously, it can be seen from FIGS. 8 and 9 that the length L3 from the first breakpoint 120 to the first side portion 116 mainly affects the frequency of the second radiation frequency band. The length L2 from the second breakpoint 121 to the second side portion 117 mainly affects the frequency of the third radiation band. Furthermore, the intermediate and high frequencies of the antenna structure 100 can cover 1430-2690MHz, and its S11 value is -5dB. And the antenna structure 100 has good antenna efficiency, and its radiation efficiency is greater than -5dB, which meets the sky. Line design requirements.

Please refer to FIG. 10 together, which is a graph of S parameters (scattering parameters) of the antenna structure 100 when the switching circuit 17 is switched to different switching elements 173. The curve S101 is the S11 value of the antenna structure 100 when the switching circuit 17 switches to the switching element 173 with an inductance value of 20 nH. The curve S102 is the S11 value of the antenna structure 100 when the switching circuit 17 switches to the switching element 173 with an inductance value of 40 nH. The curve S103 is the S11 value of the antenna structure 100 when the switching circuit 17 is switched to the floating state.

FIG. 11 is a graph of the total radiation efficiency of the antenna structure 100 when the switching circuit 17 is switched to a different switching element 173. The curve S111 is the total radiation efficiency of the antenna structure 100 when the switching circuit 17 is switched to the switching element 173 having an inductance value of 20 nH. The curve S112 is the total radiation efficiency of the antenna structure 100 when the switching circuit 17 is switched to the switching element 173 having an inductance value of 40 nH. The curve S113 is the total radiation efficiency of the antenna structure 100 when the switching circuit 17 is switched to the floating state.

Obviously, as can be seen from FIG. 10 and FIG. 11, by setting the switching circuit 17, the low frequency of the antenna structure 100 can cover 700-960 MHz, and its S11 value is -5 dB. In addition, the antenna structure 100 has good antenna efficiency, and its radiation efficiency is greater than -6dB, which meets the antenna design requirements. At the same time, the switching circuit 17 does not affect the intermediate frequency and high frequency bandwidth of the antenna structure 100, which is suitable for Carrier Aggregation (CA) applications.

Please refer to FIG. 12 together, which shows an antenna structure 100a provided by a second preferred embodiment of the present invention, which can be applied to a wireless communication device 200a such as a mobile phone, a personal digital assistant, and the like, for transmitting and receiving radio waves to transmit, Exchange wireless signals.

The antenna structure 100a includes a frame 110, a first feed source 12a, and a connection portion. 13. The ground portion 14a, the matching circuit 15, and the switching circuit 17. The wireless communication device 200 a includes a substrate 21 and an electronic component 23. The frame 110 is provided with a protruding portion 119, a first break point 120, and a second break point 121a. The electronic component 23 is disposed in the protruding portion 119.

It can be understood that, in this embodiment, the difference between the antenna structure 100a and the antenna structure 100 is that the position of the second breakpoint 121a in the antenna structure 100a is different from the position of the second breakpoint 121 in the antenna structure 100. In this embodiment, the second break point 121 a is disposed at a connection between the first end portion 114 and the second side portion 117. In this way, the first breakpoint 120 and the second breakpoint 121a only jointly separate the corresponding first radiating portion A1a and the second radiating portion A2 from the frame 110. That is, in this embodiment, the antenna structure 100a includes only the first radiating portion A1a and the second radiating portion A2, and the third radiating portion A3 is omitted. Wherein, the frame 110 between the first breakpoint 120 and the second breakpoint 121a forms the first radiation portion A1a. The frame 110 extending from the first breakpoint 120 to the first side portion 116 forms the second radiating portion A2.

It can be understood that, in this embodiment, the antenna structure 100a is different from the antenna structure 100 in that the positions of the first feed source 12a and the ground portion 14a in the antenna structure 100a and the first feed in the antenna structure 100 The positions of the source 12 and the ground 14 are different. Specifically in this embodiment, the first feed source 12a is disposed adjacent to the first breakpoint 120. One end of the first feed-in source 12a is electrically connected to the first radiation portion A1a near one side of the first break point 120 through the matching circuit 15 and the connection portion 13, and the other end is grounded, and A current is fed to the first radiation portion A1a. The ground portion 14a is spaced from the first feed source 12a, and is disposed between the first feed source 12a and the second break point 121a. One end of the ground portion 14a is electrically connected to the first radiating portion A1, and the other end is grounded through the switching circuit 17 to A ground is provided for the first radiation portion A1a.

It can be understood that, in this embodiment, the antenna structure 100a is different from the antenna structure 100 in that the antenna structure 100a further includes a load circuit 18, a second feed source 19, and a matching unit 19a. The load circuit 18 is disposed in the accommodating space 113. The load circuit 18 may include an inductor, a capacitor, or a combination thereof. The load circuit 18 is disposed between the first break point 120 and the first feed source 12a. One end of the load circuit 18 is electrically connected to the first radiation portion A1a, and the other end is grounded.

The second feed source 19 and the matching unit 19 a are disposed between the first break point 120 and the first side portion 116, and are disposed adjacent to the first side portion 116. One end of the second feeding source 19 is electrically connected to the second radiating portion A2 through the matching unit 19a, and the other end is grounded.

It can be understood that, in other embodiments, the position of the second break point 121a on the frame 110 in the antenna structure 100a can also be adjusted as needed. For example, the second break point 121 a may be moved toward the position of the first break point 120. As such, the antenna structure 100a may still include the third radiating portion A3. That is, the frame 110 extending from the second break point 121a to the second side portion 117 forms the third radiation portion A3.

Please refer to FIG. 13 together, which is an antenna structure 100b provided by a third preferred embodiment of the present invention, which can be applied to a wireless communication device 200b such as a mobile phone and a personal digital assistant to transmit and receive radio waves to transmit, Exchange wireless signals.

The antenna structure 100b includes a frame 110, a first feed source 12, a connection portion 13, a ground portion 14, a matching circuit 15, and a switching circuit 17. The wireless communication device 200 b includes a substrate 21 and an electronic component 23. The frame 110 is provided with a protruding portion 119, a first break point 120b, and Second breakpoint 121b. The electronic component 23 is disposed in the protruding portion 119.

It can be understood that, in this embodiment, the difference between the antenna structure 100b and the antenna structure 100 is that the positions of the first break point 120b and the second break point 121b in the antenna structure 100b and the first break point in the antenna structure 100 The positions of the point 120 and the second break point 121 are different. In this embodiment, the first breakpoint 120b is not disposed on the protruding portion 119, but is disposed at a position where the first end portion 114 is close to the second side portion 117. The second break point 121 b is disposed at a connection between the first end portion 114 and the second side portion 117. In this way, the first breakpoint 120b and the second breakpoint 121b only jointly separate the corresponding first radiation portion A1b and the second radiation portion A2b from the frame 110. That is, in this embodiment, the antenna structure 100b includes only the first radiating portion A1b and the second radiating portion A2b, and the third radiating portion A3 is omitted. Wherein, the frame 110 extending from the first breakpoint 120b to the first side portion 116 forms the first radiation portion A1b. The frame 110 between the first breakpoint 120b and the second breakpoint 121b forms the second radiation portion A2b.

It can be understood that, in this embodiment, one end of the first feed source 12 is electrically connected to the first radiating portion A1b near the first breakpoint 120b through the matching circuit 15 and the connecting portion 13. On one side, the other end is grounded to feed current to the first radiating portion A1b. The ground portion 14 is spaced from the first feed source 12. The ground portion 14 is disposed on a side of the first feed source 12 away from the first break point 120b. One end of the ground portion 14 is electrically connected to the first radiation portion A1b, and the other end is grounded through the switching circuit 17 to provide ground for the first radiation portion A1b.

It can be understood that, in this embodiment, the difference between the antenna structure 100b and the antenna structure 100 is that the antenna structure 100b further includes a second feed source 19b and a matching unit 19c. The second feed source 19b is disposed in the frame 110 between the first breakpoint 120b and the second breakpoint 121b. One end of the second feeding source 19b is electrically connected to the second radiating portion A2b through the matching unit 19c, and the other end is grounded.

It can be understood that, in this embodiment, the first feed source 12 and the first radiating portion A1b together form a loop antenna. The second feed source 19b, the matching unit 19c, and the second radiating portion A2b together constitute a monopole antenna. Furthermore, a gap formed between the first radiating portion A1b and the substrate 21 has a capacitive effect, and a corresponding slot antenna can be formed.

Obviously, the antenna structure 100 / 100a / 100b of the present invention and the wireless communication device 200 / 200a / 200b having the antenna structure 100 / 100a / 100b have corresponding protrusions 119 provided on the frame 110. In this way, the protruding portion 119 can accommodate the corresponding electronic component 23 and the display unit 201 forms a complete display plane 202, that is, a complete rounded rectangular display plane 202. The display plane 202 does not need to be A notch for receiving the electronic component 23. In addition, under the condition of full screen, there is no need to compress the headroom area 211 of the antenna structure 100 / 100a / 100b, which is more beautiful and practical.

The above descriptions are merely preferred embodiments of the present invention, and are not intended to limit the present invention in any form. In addition, those skilled in the art can make other changes within the spirit of the present invention. Of course, these changes made in accordance with the spirit of the present invention should be included in the scope of protection of the present invention.

Claims (13)

An antenna structure is improved in that the antenna structure includes a frame and at least one feed source, the frame is made of a metal material, and one side of the frame is provided with a protrusion protruding outward to accommodate an electron Element, the frame is provided with a first break point and a second break point on one side of the protruding portion, and the first break point and the second break point both penetrate and block the frame, and The frame defines at least two radiating portions, and the at least one feeding source is electrically connected to the at least two radiating portions to feed current to the at least two radiating portions. The antenna structure according to item 1 of the patent application scope, wherein the frame includes a first end portion, a second end portion, a first side portion, and a second side portion, and the first end portion and the second end portion The first side portion and the second side portion are connected to both ends of the first end portion and the second end portion, respectively, and the protruding portion is provided near the first end portion. One side of the first side portion, and extending in a direction away from the second end portion, the first breakpoint is opened on the protruding portion, and the first breakpoint is common with the second breakpoint A first radiation portion and a second radiation portion are divided from the frame. The antenna structure according to item 2 of the scope of patent application, wherein the at least one feed source includes a first feed source, the antenna structure further includes a ground portion, and the first feed source is electrically connected to the first feed source A radiating portion for feeding current to the first radiating portion, one end of the ground portion is electrically connected to the first radiating portion, and the other end is grounded, and the first feeding source flows into the first radiating portion; Current is also coupled to the second radiating portion through the first breakpoint. The antenna structure according to item 3 of the scope of patent application, wherein the second breakpoint is opened on a side of the first end portion close to the second side portion, and the second breakpoint is divided from the frame A third radiating portion is formed, and the frame between the first breakpoint and the second breakpoint forms the first radiating portion and extends from the first breakpoint to a place of the first side portion. The frame forms the second radiation portion, the frame extending from the second breakpoint to the second side portion constitutes the third radiation portion, and the first feed source flows into the first radiation The current of the part is also coupled to the third radiating part through the second break point. The antenna structure according to item 2 of the scope of patent application, wherein the at least one feed source includes a first feed source and a second feed source, the antenna structure further includes a ground portion and a load circuit, and the first A feed source is electrically connected to the first radiating portion to feed current to the first radiating portion, one end of the ground portion is electrically connected to the first radiating portion, and the other end is grounded, and the second feeding A source is electrically connected to the second radiating portion, and then a current is fed to the second radiating portion. One end of the load circuit is electrically connected to the first radiating portion, and the other end is grounded. The antenna structure according to item 5 of the scope of patent application, wherein the second breakpoint is opened at a connection between the first end portion and the second side portion, and the first breakpoint and the second The frame between the breakpoints forms the first radiating portion, and the frame extending from the first breakpoint to the first side portion forms the second radiating portion. The antenna structure according to item 1 of the patent application scope, wherein the frame includes a first end portion, a second end portion, a first side portion, and a second side portion, and the first end portion and the second end portion The first side portion and the second side portion are connected to both ends of the first end portion and the second end portion, respectively, and the protruding portion is provided near the first end portion. One of the first side portions extends in a direction away from the second end portion, and the first breakpoint is opened on one side of the first end portion near the second side portion, and the first A breakpoint and the second breakpoint jointly define a first radiating portion and a second radiating portion from the frame. The antenna structure according to item 7 of the patent application scope, wherein the at least one feed source includes a first feed source and a second feed source, the antenna structure further includes a grounding portion, and the first feed source Electrically connected to the first radiating portion to feed current to the first radiating portion, and the second feed source is electrically connected to the second radiating portion to further feed current to the second radiating portion, One end of the ground portion is electrically connected to the first radiating portion, and the other end is grounded. The antenna structure according to item 8 of the scope of patent application, wherein the second breakpoint is opened at a connection between the first end portion and the second side portion, and extends from the first breakpoint to the The frame of the first side portion forms the first radiating portion, and the frame between the first break point and the second break point forms the second radiating portion. The antenna structure according to item 9 of the scope of patent application, wherein the first feed source and the first radiating portion constitute a loop antenna, and the second feed source and the second radiating portion constitute a monopole antenna. A slot antenna is formed between the first radiating portion and a circuit board. The antenna structure according to claim 3, 5, or 8, wherein the antenna structure further includes a switching circuit including a switching unit and a plurality of switching elements, and the switching unit is electrically connected to the ground To be electrically connected to the first radiating part through the ground part, a plurality of the switching elements are connected in parallel with each other, and one end of each of the switching elements is electrically connected to the switching unit, and the other end is grounded, The switching of the switching unit causes the first radiating portion to switch to a different switching element, thereby adjusting a frequency of a radiation band of the antenna structure. A wireless communication device includes the antenna structure according to any one of claims 1-10 of the scope of patent application. The wireless communication device according to item 12 of the patent application scope, wherein the wireless communication device further includes a display unit and an optical module, the display unit is accommodated in an opening on one side of the frame, and the display unit includes a complete A notch-free display plane, the optical module is disposed in the protruding portion.