TW201436367A - Communication device and dual-feed dual-band ground plane antenna element therein - Google Patents
Communication device and dual-feed dual-band ground plane antenna element therein Download PDFInfo
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本發明係為一種通訊裝置及其接地面天線元件，特別是一種具有雙饋入雙頻帶之接地面天線元件之通訊裝置。 The present invention is a communication device and a ground plane antenna element thereof, and more particularly, a communication device having a ground plane antenna element that is double fed into a dual band.
行動通訊科技蓬勃發展，為了增加資料傳輸量以提升傳輸速度，更多天線必須設計在同一行動裝置上。然則，為了達到行動通訊的目的，並擁有更佳的資訊處理及視聽娛樂功能，行動通訊裝置重量越來越輕而厚度越來越薄，同時螢幕越來越大而螢幕與邊框的距離也越來越小，如此一來，天線設計的可用空間是越來越少，而傳統的LTE/WWAN天線，其共振路徑之長度由於大致需要操作頻率的四分之一波長，較難以應用於此環境中。 Mobile communication technology is booming. In order to increase the amount of data transmission to increase the transmission speed, more antennas must be designed on the same mobile device. However, in order to achieve the purpose of mobile communication, and to have better information processing and audio-visual entertainment functions, the mobile communication device is lighter in weight and thinner in thickness, and the screen is getting larger and larger, and the distance between the screen and the frame is also greater. The smaller the space, the less space available for the antenna design, and the length of the resonant path of the traditional LTE/WWAN antenna is more difficult to apply to this environment due to the roughly required quarter-wavelength of the operating frequency. in.
更甚者，在行動通訊裝置螢幕變大的同時，搭配可撓式的通訊裝置以方便使用者攜帶，為目前發展方向之一。而當行動通訊裝置為可撓式時，傳統的LTE/WWAN天線所配置的位置，無論是在接地面的長側邊或短側邊上，均為較容易被影響到的位置。相對而言，行動通訊裝置之角落處由於位置以及尺寸較小的緣故，預期天線在此位置受到撓曲的影響將較小。且由於傳統的LTE/WWAN天線體積較大，若配置在角落處，其天線的Q值(Quality Factor)勢必會因無足夠的淨空區間而升高，進而影響天線的 輻射特性。 What's more, with the screen of the mobile communication device becoming larger, it is one of the current development directions with the flexible communication device to facilitate the user to carry. When the mobile communication device is flexible, the position of the conventional LTE/WWAN antenna is relatively easy to be affected, whether it is on the long side or the short side of the ground plane. Relatively speaking, due to the small position and size of the corner of the mobile communication device, it is expected that the antenna will be less affected by the deflection at this position. And because the traditional LTE/WWAN antenna is large in size, if it is placed at a corner, the Q factor of the antenna is bound to rise due to insufficient clearance space, which affects the antenna. Radiation characteristics.
綜合以上所述，如何妥善利用行動通訊裝置之角落處的有限空間來設計具有低姿式且平面式的LTE/WWAN天線，為一項重要之課題。 In summary, how to properly utilize the limited space at the corner of the mobile communication device to design a low-profile and planar LTE/WWAN antenna is an important issue.
為了解決上述先前技術之問題，本發明提供一種通訊裝置，其具有雙饋入雙頻帶之接地面天線元件，不僅可以設計在行動通訊裝置之角落處，同時具有平面式之結構，可以涵蓋LTE/WWAN(約704~960 MHz及約1710~2690 MHz)之雙寬頻帶操作。 In order to solve the above problems of the prior art, the present invention provides a communication device having a dual-band dual-band ground plane antenna element, which can be designed not only at the corner of the mobile communication device, but also has a planar structure and can cover LTE/ Dual wideband operation of WWAN (approximately 704~960 MHz and approximately 1710~2690 MHz).
本發明之通訊裝置，包括一接地元件以及一輻射金屬部。輻射金屬部鄰近接地元件之一邊緣，且與接地元件不互相重疊，輻射金屬部具有一第一饋入點及一第二饋入點，分別鄰近或位於輻射金屬部之二對應邊緣。其中，第一饋入點耦接至一第一切換開關，第一切換開關經由一第一電抗電路耦接至一通訊模組，第二饋入點耦接至一第二切換開關，第二切換開關耦接至通訊模組。接地元件與輻射金屬部形成一接地面天線元件。 The communication device of the present invention comprises a grounding element and a radiating metal portion. The radiating metal portion is adjacent to an edge of the grounding member and does not overlap with the grounding member. The radiating metal portion has a first feeding point and a second feeding point, respectively adjacent to or at two corresponding edges of the radiating metal portion. The first feed point is coupled to a first switch, the first switch is coupled to a communication module via a first reactance circuit, and the second feed point is coupled to a second switch. The switch is coupled to the communication module. The grounding element forms a ground plane antenna element with the radiating metal portion.
在本發明之實施例中，輻射金屬部大致為一矩形金屬片或一倒L形金屬片，並操作於一第一頻帶及一第二頻帶，第一頻帶之頻率低於第二頻帶之頻率，同時第一電抗電路提供一第一阻抗，使得輻射金屬部之共振長度少於第一頻帶之最低頻率的0.15倍波長，遠低於傳統所需之0.25倍波長，因此輻射金屬部本身不僅如為一平面式結構，更具有小尺寸之特性，相當適合應用於可撓式裝置中。 In an embodiment of the invention, the radiating metal portion is substantially a rectangular metal piece or an inverted L-shaped metal piece, and operates in a first frequency band and a second frequency band, and the frequency of the first frequency band is lower than the frequency of the second frequency band. At the same time, the first reactance circuit provides a first impedance such that the resonant length of the radiating metal portion is less than 0.15 times the wavelength of the lowest frequency of the first frequency band, which is much lower than the conventionally required wavelength of 0.25 times, so that the radiating metal portion itself is not only It is a flat structure and has a small size, which is quite suitable for use in a flexible device.
在本發明之實施例中，當第一切換開關導通，且第二切換開 關開路時，輻射金屬部由第一饋入點饋入能量，並操作於第一頻帶；當第一切換開關開路，且第二切換開關導通時，輻射金屬部由第二饋入點饋入能量，並操作於第二頻帶，而第二切換開關也可以經由一第二電抗電路耦接至通訊模組，此時第二電抗電路提供一第二阻抗，使得輻射金屬部之共振長度小於第二頻帶之最低頻率的0.15倍波長，遠低於傳統所需之0.25倍波長。輻射金屬部鄰近接地元件之一角落處，並沿著該角落之二相鄰邊緣延伸，並且與接地元件大致位於同一平面上，使得本發明可以設計在行動通訊裝置之角落處或較小的空間中，來涵蓋LTE/WWAN(約704~960 MHz及約1710~2690 MHz)之雙寬頻帶操作。 In an embodiment of the invention, when the first switch is turned on, and the second switch is turned on When the circuit is closed, the radiating metal portion feeds energy from the first feeding point and operates in the first frequency band; when the first switching switch is open and the second switching switch is turned on, the radiating metal portion is fed by the second feeding point Energy, and operating in the second frequency band, and the second switch can also be coupled to the communication module via a second reactance circuit, wherein the second reactance circuit provides a second impedance such that the resonant length of the radiating metal portion is less than The 0.15 times wavelength of the lowest frequency of the two bands is much lower than the 0.25 times the wavelength required by the conventional one. The radiating metal portion is adjacent to a corner of the grounding member and extends along two adjacent edges of the corner and is substantially in the same plane as the grounding member, so that the present invention can be designed at a corner of the mobile communication device or a small space. Medium to cover dual wideband operation of LTE/WWAN (approximately 704~960 MHz and approximately 1710~2690 MHz).
11‧‧‧第一實施例 11‧‧‧First embodiment
61‧‧‧第二實施例 61‧‧‧Second embodiment
71‧‧‧第三實施例 71‧‧‧ Third embodiment
81‧‧‧第四實施例 81‧‧‧Fourth embodiment
12,72‧‧‧接地元件 12,72‧‧‧ Grounding components
13,73,83‧‧‧輻射金屬部 13,73,83‧‧‧radiation metal department
131,731,831‧‧‧第一邊緣 131,731,831‧‧‧ first edge
132,732,832‧‧‧第二邊緣 132,732,832‧‧‧second edge
133,633,733,833‧‧‧第一饋入點 133,633,733,833‧‧‧first feed point
134,634,734,834‧‧‧第二饋入點 134,634,734,834‧‧‧second feed point
141,641,741,841‧‧‧第一切換開關 141,641,741,841‧‧‧first switch
142,642,742,842‧‧‧第二切換開關 142,642,742,842‧‧‧Second switch
151,651,751,851‧‧‧第一電抗電路 151,651,751,851‧‧‧first reactance circuit
16‧‧‧通訊模組 16‧‧‧Communication module
21‧‧‧第一頻帶 21‧‧‧First frequency band
31‧‧‧第二頻帶 31‧‧‧second frequency band
41‧‧‧第一頻帶之天線效率曲線 41‧‧‧ Antenna efficiency curve for the first band
51‧‧‧第二頻帶之天線效率曲線 51‧‧‧An antenna efficiency curve for the second frequency band
652,752,852‧‧‧第二電抗電路 652,752,852‧‧‧second reactance circuit
735‧‧‧輻射金屬部鄰近接地元件之一平滑邊緣 735‧‧‧The radiant metal part is adjacent to one of the grounding elements and has a smooth edge
第1圖為本發明之第一實施例之結構圖。 Fig. 1 is a structural view showing a first embodiment of the present invention.
第2圖為本發明之第一實施例之返回損失圖，此時第一切換開關導通，且第二切換開關開路。 2 is a return loss diagram of the first embodiment of the present invention, in which case the first switching switch is turned on and the second switching switch is open.
第3圖為本發明之第一實施例之返回損失圖，此時第一切換開關開路，且第二切換開關導通。 Figure 3 is a return loss diagram of the first embodiment of the present invention, in which case the first switch is open and the second switch is turned on.
第4圖為本發明之第一實施例之天線效率圖，此時第一切換開關導通，且第二切換開關開路。 4 is an antenna efficiency diagram of the first embodiment of the present invention, in which the first switch is turned on and the second switch is turned on.
第5圖為本發明之第一實施例之天線效率圖，此時第一切換開關開路，且第二切換開關導通。 FIG. 5 is an antenna efficiency diagram of the first embodiment of the present invention, in which the first switch is open and the second switch is turned on.
第6圖為本發明之第二實施例之結構圖。 Figure 6 is a structural view of a second embodiment of the present invention.
第7圖為本發明之第三實施例之結構圖。 Figure 7 is a structural view of a third embodiment of the present invention.
第8圖為本發明之第四實施例之結構圖。 Figure 8 is a structural view showing a fourth embodiment of the present invention.
第1圖為本發明之第一實施例11之結構圖，包括一接地元件12以及一輻射金屬部13。輻射金屬部13鄰近接地元件之一邊緣，且與接地元件12不互相重疊，輻射金屬部13具有一第一饋入點133及一第二饋入點134，分別鄰近於輻射金屬部13之二對應邊緣，如第一邊緣131及第二邊緣132。其中，第一饋入點133耦接至一第一切換開關141，第一切換開關141經由一第一電抗電路151耦接至一通訊模組16，第二饋入點134耦接至一第二切換開關142，第二切換開關142耦接至通訊模組16。 1 is a structural view of a first embodiment 11 of the present invention, including a grounding member 12 and a radiating metal portion 13. The radiating metal portion 13 is adjacent to an edge of the grounding member and does not overlap with the grounding member 12. The radiating metal portion 13 has a first feeding point 133 and a second feeding point 134 adjacent to the radiating metal portion 13 respectively. Corresponding edges, such as first edge 131 and second edge 132. The first feed point 133 is coupled to a first switch 141. The first switch 141 is coupled to a communication module 16 via a first reactance circuit 151. The second feed point 134 is coupled to the first The second switch 142 is coupled to the communication module 16 .
第2圖為本發明之第一實施例11之返回損失圖，此時第一切換開關141導通，且第二切換開關142開路。在第一實施例11中選擇下列尺寸：接地元件12之長度約為180 mm，寬度約為100 mm。輻射金屬部13之長度約為48 mm(704 MHz之約0.11倍波長)，寬度約為7.5 mm，而輻射金屬部13與接地元件12之間的距離約為2.5 mm，亦即輻射金屬部13離接地元件12之整體高度僅約為10 mm。此時輻射金屬部13可以操作於第一頻帶，大致涵蓋LTE700/GSM850/900頻帶(約704~960 MHz)21之操作。 2 is a return loss diagram of the first embodiment 11 of the present invention, in which case the first changeover switch 141 is turned on and the second changeover switch 142 is open. The following dimensions were selected in the first embodiment 11: the grounding element 12 has a length of about 180 mm and a width of about 100 mm. The length of the radiating metal portion 13 is about 48 mm (about 0.11 times the wavelength of 704 MHz), the width is about 7.5 mm, and the distance between the radiating metal portion 13 and the grounding member 12 is about 2.5 mm, that is, the radiating metal portion 13 The overall height from the grounding element 12 is only about 10 mm. At this time, the radiating metal portion 13 can operate in the first frequency band, and roughly covers the operation of the LTE700/GSM850/900 band (about 704 to 960 MHz) 21.
第3圖亦為本發明之第一實施例11之返回損失圖，此時第一切換開關141開路，第二切換開關142導通。第一實施例11之尺寸與第2圖中之所述尺寸相同。此時輻射金屬部13可以操作於第二頻帶GSM1800/1900/LTE2300/2500頻帶(約1710~2690 MHz)31之操作。 Fig. 3 is also a return loss diagram of the first embodiment 11 of the present invention, in which the first changeover switch 141 is open and the second changeover switch 142 is turned on. The size of the first embodiment 11 is the same as that described in Fig. 2. At this time, the radiating metal portion 13 can operate in the second frequency band GSM1800/1900/LTE2300/2500 band (about 1710~2690 MHz) 31.
第4圖為本發明之第一實施例11之天線效率圖，此時第一切換開關141導通，且第二切換開關142開路。第一實施例11之尺寸與第2圖中 之所述尺寸相同。此時第一頻帶之天線效率(包含返回損失之效率)曲線41在操作頻帶內(約704~960 MHz)均有45%以上的表現，使得本發明足以應用於行動通訊裝置中。 4 is an antenna efficiency diagram of the first embodiment 11 of the present invention, in which the first switch 141 is turned on and the second switch 142 is open. The size of the first embodiment 11 and the second figure The dimensions are the same. At this time, the antenna efficiency (including the return loss efficiency) curve 41 of the first frequency band has a performance of more than 45% in the operating band (about 704 to 960 MHz), making the present invention sufficient for use in a mobile communication device.
第5圖亦為本發明之第一實施例11之天線效率圖，此時第一切換開關開路，且第二切換開關導通。第一實施例11之尺寸與第2圖中之所述尺寸相同。此時第一頻帶之天線效率(包含返回損失之效率)曲線51在操作頻帶內(約1710~2690 MHz)均有70%以上的表現，使得本發明足以應用於行動通訊裝置中。 Figure 5 is also an antenna efficiency diagram of the first embodiment 11 of the present invention, in which the first switch is open and the second switch is turned on. The size of the first embodiment 11 is the same as that described in Fig. 2. At this time, the antenna efficiency (including the return loss efficiency) curve 51 of the first frequency band is more than 70% in the operating band (about 1710 to 2690 MHz), making the present invention sufficient for use in a mobile communication device.
第6圖為本發明之第二實施例61之結構圖。第二實施例61與第一實施例11之主要差異在於第一饋入點633位於輻射金屬部13之第一邊緣131上，第一邊緣131與第二邊緣132為二相對應邊緣，第二饋入點634鄰近第二邊緣132，第一饋入點633耦接至一第一切換開關641，第一切換開關641經由一第一電抗電路651耦接至一通訊模組16，而第二饋入點634耦接至一第二切換開關642，第二切換開關642經由一第二電抗電路652耦接至通訊模組16。第二實施例61之其他天線結構與第一實施例11相似，在此相似結構下，第二實施例61亦可以具有與第一實施例11相似之功效。 Fig. 6 is a structural view showing a second embodiment 61 of the present invention. The main difference between the second embodiment 61 and the first embodiment 11 is that the first feeding point 633 is located on the first edge 131 of the radiating metal portion 13, and the first edge 131 and the second edge 132 are two corresponding edges, and the second The feed point 634 is adjacent to the second edge 132. The first feed point 633 is coupled to a first switch 641. The first switch 641 is coupled to a communication module 16 via a first reactance circuit 651, and the second The feed point 634 is coupled to a second switch 642. The second switch 642 is coupled to the communication module 16 via a second reactance circuit 652. The other antenna structure of the second embodiment 61 is similar to that of the first embodiment 11, and in this similar configuration, the second embodiment 61 can also have similar effects as the first embodiment 11.
第7圖為本發明之第三實施例71之結構圖。第三實施例71與第一實施例11之主要差異在於第二饋入點734耦接至一第二切換開關742，第二切換開關742經由一第二電抗電路752耦接至一通訊模組16，同時，輻射金屬部73鄰近接地元件72之一邊緣735為一平滑彎曲之邊緣，邊緣735所面對之接地元件72之一角落也可以不為一直角轉角，而具有一彎曲度。第三實施例71之其他天線結構與第一實施例11相似，在此相似結構下，第三 實施例71亦可以具有與第一實施例11相似之功效。 Fig. 7 is a structural view showing a third embodiment 71 of the present invention. The main difference between the third embodiment 71 and the first embodiment is that the second feed point 734 is coupled to a second switch 742, and the second switch 742 is coupled to a communication module via a second reactance circuit 752. 16. At the same time, the radiating metal portion 73 is adjacent to the edge 735 of the grounding member 72 as a smoothly curved edge, and a corner of the grounding member 72 facing the edge 735 may not have a right angle and have a curvature. The other antenna structure of the third embodiment 71 is similar to that of the first embodiment 11, and in this similar structure, the third Embodiment 71 can also have similar effects as the first embodiment 11.
第8圖為本發明之第四實施例81之結構圖。第四實施例81與第一實施例11之主要差異在於第二饋入點834耦接至一第二切換開關842，第二切換開關842經由一第二電抗電路852耦接至一通訊模組16，同時，輻射金屬部83鄰近接地元件11之一邊緣，並沿著該邊緣延伸。第四實施例81之其他天線結構與第一實施例11相似，在此相似結構下，第四實施例81亦可以具有與第一實施例11相似之功效。 Figure 8 is a block diagram showing a fourth embodiment 81 of the present invention. The difference between the fourth embodiment 81 and the first embodiment 11 is that the second feed point 834 is coupled to a second switch 842, and the second switch 842 is coupled to a communication module via a second reactance circuit 852. 16. At the same time, the radiating metal portion 83 is adjacent to an edge of the grounding member 11 and extends along the edge. The other antenna structure of the fourth embodiment 81 is similar to that of the first embodiment 11. Under the similar structure, the fourth embodiment 81 can also have similar effects as the first embodiment 11.
以上所述者，僅為本發明之較佳實施例而已，當不能以此限定本發明實施之範圍。即大凡依本發明申請專利範圍所作之均等變化與修飾，皆應仍屬本發明專利涵蓋之範圍內。 The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto. That is, the equivalent changes and modifications made by the invention in accordance with the scope of the invention are still within the scope of the invention.
11‧‧‧第一實施例 11‧‧‧First embodiment
12‧‧‧接地元件 12‧‧‧ Grounding components
13‧‧‧輻射金屬部 13‧‧‧ Radiation Metals Department
131‧‧‧第一邊緣 131‧‧‧First edge
132‧‧‧第二邊緣 132‧‧‧ second edge
133‧‧‧第一饋入點 133‧‧‧First feed point
134‧‧‧第二饋入點 134‧‧‧second feed point
141‧‧‧第一切換開關 141‧‧‧First switch
142‧‧‧第二切換開關 142‧‧‧Second switch
151‧‧‧第一電抗電路 151‧‧‧First reactance circuit
16‧‧‧通訊模組 16‧‧‧Communication module
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102108591A TWI513111B (en) | 2013-03-12 | 2013-03-12 | Communication device and dual-feed dual-band ground plane antenna element therein |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102108591A TWI513111B (en) | 2013-03-12 | 2013-03-12 | Communication device and dual-feed dual-band ground plane antenna element therein |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201436367A true TW201436367A (en) | 2014-09-16 |
| TWI513111B TWI513111B (en) | 2015-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW102108591A TWI513111B (en) | 2013-03-12 | 2013-03-12 | Communication device and dual-feed dual-band ground plane antenna element therein |
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| Country | Link |
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| TW (1) | TWI513111B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11916314B2 (en) | 2022-05-12 | 2024-02-27 | Htc Corporation | Mobile device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI353688B (en) * | 2008-06-10 | 2011-12-01 | Univ Nat Sun Yat Sen | A multiband mobile communication device antenna |
| TW201004030A (en) * | 2008-07-08 | 2010-01-16 | Mitac Int Corp | Antenna system capable of adjusting radiation pattern |
| KR101687632B1 (en) * | 2010-05-10 | 2016-12-20 | 삼성전자주식회사 | Re-configurable built-in antenna for portable terminal |
-
2013
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11916314B2 (en) | 2022-05-12 | 2024-02-27 | Htc Corporation | Mobile device |
| TWI837687B (en) * | 2022-05-12 | 2024-04-01 | 宏達國際電子股份有限公司 | Mobile device |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI513111B (en) | 2015-12-11 |
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| MM4A | Annulment or lapse of patent due to non-payment of fees |