WO2002054585A1 - High-frequency amplifier - Google Patents
High-frequency amplifier Download PDFInfo
- Publication number
- WO2002054585A1 WO2002054585A1 PCT/JP2001/010993 JP0110993W WO02054585A1 WO 2002054585 A1 WO2002054585 A1 WO 2002054585A1 JP 0110993 W JP0110993 W JP 0110993W WO 02054585 A1 WO02054585 A1 WO 02054585A1
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- WO
- WIPO (PCT)
- Prior art keywords
- transmission line
- inductor
- capacitor
- circuit
- capacitor connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/60—Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/2007—Filtering devices for biasing networks or DC returns
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/46—Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/0123—Frequency selective two-port networks comprising distributed impedance elements together with lumped impedance elements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/17—Structural details of sub-circuits of frequency selective networks
- H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
- H03H7/1758—Series LC in shunt or branch path
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/17—Structural details of sub-circuits of frequency selective networks
- H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
- H03H7/1766—Parallel LC in series path
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/17—Structural details of sub-circuits of frequency selective networks
- H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
- H03H7/1791—Combined LC in shunt or branch path
Definitions
- the present invention relates to a high-frequency amplifier mainly used for communication equipment such as a mobile phone.
- one end of a transmission line 144 is generally connected between an amplification circuit 1401 and an output-side matching circuit 144, so that the transmission line 1
- the other end of 403 is connected to the power supply 1405 and grounded via the capacitor 144.
- the transmission line 1443 is set to have a length of a quarter wavelength in the frequency band of the signal amplified by the amplifier circuit 1401.
- the capacitor 1444 is set to a relatively large capacitance value so as to be sufficiently short in the frequency band.
- the bias current flowing from the power supply 1405 is a direct current, it does not flow to the capacitor 144, but flows to the amplification circuit 1441 via the transmission line 1443, and flows through the amplification circuit 1441.
- the amplification circuit 1401 amplifies the signal in the frequency band, and at the same time, generates harmonic distortion in a band n times (n is an integer) of the frequency band.
- the capacitor 144 is in a sufficiently short state, and the length of the transmission line 144 is a quarter wavelength. Therefore, at one end of the transmission line 1443, the signal that has been inverted and opened to the open state does not flow to the bias circuit 1406 but is output through the output-side matching circuit 1442. Is done.
- FIG. 15 shows the frequency characteristic of a high-frequency amplifier in which the output impedance of the amplifier circuit 1401 is 3.2-j5.7 ⁇ and the output frequency band is 900 MHz.
- the bias circuit of conventional high-frequency amplifiers has the disadvantage that the short-circuiting of the capacitors in the 2nd and 3rd harmonic frequency bands, which are the main harmonic distortions of high-frequency amplifiers, is insufficient.
- the high-frequency amplifier comprises: (a) an amplifier circuit; (b) an output-side matching circuit; and (c) a first end connected between the amplifier circuit and the output-side matching circuit and a second end connected to a power supply.
- a parallel circuit formed by a first transmission line and a first capacitor; and a second capacitor having a first end connected to the second end of the parallel circuit and a second end grounded.
- a bias circuit is
- the bias circuit is short-circuited in a desired frequency band while maintaining an open state in the frequency band of the signal amplified by the amplifier circuit. Therefore, harmonic distortion can be reduced without using a low-pass filter.
- FIG. 1 is a circuit diagram of a high-frequency amplifier according to Embodiment 1 of the present invention.
- FIG. 2 is a circuit diagram of another high-frequency amplifier according to the first embodiment.
- FIG. 3 is a frequency characteristic diagram of the high-frequency amplifier according to the first embodiment.
- FIG. 4 is a circuit diagram of a high-frequency amplifier according to Embodiment 2 of the present invention.
- FIG. 5 is a circuit diagram of a high-frequency amplifier according to Embodiment 3 of the present invention.
- FIG. 6 is a frequency characteristic diagram of the high-frequency amplifier according to the third embodiment.
- FIG. 7 is a circuit diagram of the high-frequency amplifier according to the third embodiment.
- FIG. 8 is a circuit diagram of a high-frequency amplifier according to Embodiment 4 of the present invention.
- FIG. 9 is a circuit diagram of another high-frequency amplifier according to the fourth embodiment.
- FIG. 10 is a circuit diagram of still another high-frequency amplifier according to the fourth embodiment.
- FIG. 11 is a circuit diagram of still another high-frequency amplifier according to the fourth embodiment.
- FIG. 12 is a perspective view of a high-frequency amplifier according to Embodiment 5 of the present invention.
- FIG. 13 is a perspective view of a high-frequency amplifier according to Embodiment 6 of the present invention.
- FIG. 14 is a circuit diagram of a conventional high-frequency amplifier.
- FIG. 15 is a frequency characteristic diagram of a conventional high-frequency amplifier. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a circuit diagram of a high-frequency amplifier according to Embodiment 1 of the present invention.
- One end of a parallel circuit composed of the first transmission line 103 and the first capacitor 104 is connected between the amplifier circuit 101 and the output-side matching circuit 102.
- the other end of the parallel circuit is connected to the power supply 105 and grounded via the second capacitor 106.
- the frequency band of the signal to be amplified by the amplifier circuit is band band f
- the frequency band of the second harmonic of the signal is band 2 f
- the frequency band of the third harmonic of the signal is band 3 f, (hereinafter, band 4 f, band 5 f,).
- the first transmission line 103 is set to have a length that is a half wavelength of the band 3f.
- the capacitance of the first capacitor 104 is set such that the parallel circuit formed by the first transmission line 103 and the first transmission line 103 has a high impedance in a band: f, that is, an open state.
- the capacitance of the second capacitor 106 is set to a relatively large value so as to be sufficiently short-circuited in a frequency band higher than the band: f.
- the bias current flowing from the power supply 105 is a direct current, it does not flow to the first capacitor 104 or the second capacitor 106, but passes through the first transmission line 103 to the amplification circuit 100. It flows to 1 to drive the amplification circuit 101.
- the amplifier 101 amplifies the signal in the band f and simultaneously produces harmonic distortion. Since the parallel circuit formed by the first transmission line 103 and the first capacitor 104 is open in the band f, the amplified signal does not flow to the bias circuit 107 but matches the output side. Output via circuit 102.
- the second capacitor 106 is sufficiently short-circuited, and the first transmission line 103 is half the wavelength, so that the bias circuit 107 is a notch circuit. works. Therefore, the signal in the band 3 f has reduced harmonic distortion and does not flow to the output side matching circuit 102.
- the first transmission line 103 in Embodiment 1 is set to have a length that is a half wavelength in the band 3 f, but this is in a band n X f (n is a prime number of 3 or more). However, the length may be set to a half wavelength. In this case, the harmonic distortion of the high-frequency amplifier in the n-fold frequency band can be reduced.
- the output-side matching circuit 202 includes a third capacitor 208, a first inductor 209, and a fourth capacitor 210, and the third capacitor 210 8 is connected to one end of the amplifier circuit 101, the first transmission line 103, and one end of the first inductor 209, and the other end of the first inductor 209 is connected to the fourth
- the other end of the third capacitor 208 and the other end of the fourth capacitor 210 may be connected to one end of the capacitor 210 and be grounded.
- the first capacitor 104 may be deleted from the bias circuit 207.
- the output side matching circuit 202 is set so that the impedance seen from the output terminal becomes 50 ohms in the band ⁇ .
- the sensor 106 is sufficiently short-circuited in a frequency band higher than the band f, and the first capacitor 103 connected in parallel to the first transmission line 103 and the first transmission line 103 is connected. 04 and the third capacitor 208 can be considered to be connected in parallel in the band f. Therefore, the first capacitor 104 and the third capacitor 208 in FIG. 1 can be combined, and as a result, the first capacitor 104 can be deleted.
- the signal passes with matching in band f, and the signal does not pass in band 3f.
- the transmission line and the capacitor in the first embodiment can be formed in various ways, the present invention is not limited to those details.
- harmonic distortion can be reduced with a simple circuit, so that a small and high-performance mobile communication device can be configured.
- FIG. 4 is a circuit diagram of a high-frequency amplifier according to Embodiment 2 of the present invention.
- One end of a parallel circuit composed of the second transmission line 403 and the fifth capacitor 404 is connected between the amplifier circuit 401 and the output-side matching circuit 402.
- the other end of the parallel circuit is connected to the power supply 405 and one end of the second inductor 406.
- One end of a sixth capacitor 407 is connected to the other end of the second inductor 406.
- the other end of the sixth capacitor 407 is grounded.
- the second transmission line 403 is set to have a length shorter than a quarter wavelength of the band f.
- the capacitance of the fifth capacitor 404 is a parallel circuit formed with the second transmission line 403. Is set to be high impedance, that is, open in the band f.
- the capacitance of the sixth capacitor 407 is a relatively large value that does not disturb the impedance conditions of the other elements constituting the bias circuit 408 and that it is sufficiently short in the frequency band higher than the band f. Is set to
- the bias current flowing from the power supply 405 is direct current, it does not flow to the fifth capacitor 404 or the sixth capacitor 407, and passes through the second transmission line 403 to the amplification circuit 405. It flows to 1 to drive the amplifier circuit 401.
- the amplifier circuit 401 amplifies the signal in the band f, and at the same time produces harmonic distortion. Since the parallel circuit formed by the second transmission line 403 and the fifth capacitor 404 is open in the band f, the amplified signal does not flow to the bias circuit 408 but matches the output side. Output via circuit 402.
- the parallel circuit of the second transmission line 403 and the fifth capacitor 404 is open in the band f, it exhibits capacitive combined impedance in a frequency band higher than the band f.
- the inductance of the second inductor 406 is set such that this combined impedance and the second inductor 406 form a series resonance in a band nxf (n is an integer of 2 or more). Since the sixth capacitor 407 is sufficiently short-circuited in the frequency band of band nxf, the bias circuit 408 acts as a notch circuit. Therefore, the amplified signal is reduced in harmonic distortion in the band nXf, and does not flow to the output side matching circuit 402. Further, since the second transmission line 103 is shorter than the first transmission line 103 in the first embodiment, the voltage drop of the bias current is reduced. This results in improved efficiency in the amplifier.
- transmission line, inductor, and capacitor in the second embodiment are formed by various methods, the invention in the second embodiment is not limited to those details.
- FIG. 5 is a circuit diagram of a high-frequency amplifier according to Embodiment 3 of the present invention.
- One end of the third transmission line 503 is connected between the amplifier circuit 501 and the output-side matching circuit 502.
- the other end of the third transmission line 503, one end of the third inductor 504, one end of the seventh capacitor 505, and one end of the fourth transmission line 506 are connected.
- One end of an eighth capacitor 507 is connected to the other end of the third inductor 504.
- the other end of the seventh capacitor 505 and the other end of the eighth capacitor 507 are grounded.
- the other end of the fourth transmission line 506 is connected to a power supply 508 and grounded via a ninth capacitor 509.
- the third transmission line 503 is set to have a length that is a half wavelength of the band 3: f.
- the capacity of the seventh capacitor 505 is set to a relatively large value so as to be sufficiently short-circuited in a frequency band higher than the band f.
- the inductance of the third inductor 504 is set so that the parallel circuit formed with the seventh capacitor 505 has a high impedance in the band 2f, that is, an open state.
- the capacity of the eighth capacitor 507 is set to a value large enough to cut off the bias current.
- the total length of the fourth transmission line 506 and the third transmission line 503 is set to a length that is a half wavelength in the band 2f.
- the capacitance of the ninth capacitor 509 is set to a relatively large value so as to be sufficiently short in a frequency band higher than the band f. Since the bias current flowing from the power supply 508 is DC, it does not flow to the ninth capacitor 509, the seventh capacitor 505, the eighth capacitor 507, and the fourth transmission line 506 and The signal flows to the amplifier circuit 501 via the third transmission line 503, and the amplifier circuit Drive 5 0 1
- the amplification circuit 501 amplifies the signal in the band f, and at the same time produces harmonic distortion. Since the bias circuit 510 is in the open state in the band f, the amplified signal does not flow to the bias circuit 510 but is output via the output-side matching circuit 502.
- the ninth capacitor 509 is in a sufficiently short state, the third inductor 504 and the seventh capacitor 505 are in the open state, and the third transmission line 503 is in the open state. Since the total length of the fourth transmission line 506 is a half wavelength, the bias circuit 510 acts as a notch circuit. Therefore, the amplified signal is reduced in harmonic distortion in the band 2 f and does not flow to the output side matching circuit 502.
- the seventh capacitor 505 is in a sufficiently short state, and the third transmission line 503 has a length of a half wavelength. Acts as a notch circuit. Therefore, the amplified signal is reduced in harmonic distortion in the band 3 f and does not flow to the output side matching circuit 502.
- the bias circuit 5110 does not allow the signal amplified in the band f to flow, and reduces the harmonic distortion in the band 2f and the band 3f.
- band f the signal passes with matching, but in band 2f and band 3f, the signal does not pass.
- the third transmission line 503 in Embodiment 3 is set to have a length that is a half wavelength in the band 3 f, but this is the band m X f (m is a prime number of 3 or more. In), the length may be set to a half wavelength.
- the total length of the third transmission line 503 and the fourth transmission line 506 is set to a half wavelength in the band 2 f, which is equal to the band n X f (n is 2 or more). May be set to be a half wavelength at.
- the length of the third transmission line 503 in the third embodiment is set to a half wavelength in the band 3f, but is shown in FIG. 4 instead of the third transmission line 503.
- a bias circuit a parallel circuit formed by the second transmission line 403 and the fifth capacitor 404 may be used.
- the bias circuit 510 also acts as a notch circuit in band 2f and band 3f. At this time, since the third transmission line 503 can be shortened, the voltage drop of the bias current can be reduced, and as a result, the efficiency of the high-frequency amplifier can be improved.
- the other end of the fourth transmission line 506 in the third embodiment is connected to a power supply 508 and grounded via a ninth capacitor 509.
- a parallel circuit of the fourth transmission line 506 and the tenth capacitor 712 is used, and the ninth capacitor 509 and the parallel circuit are used.
- the fourth inductor 7 13 may be inserted between the second inductor 7 and the second inductor 7. In this case, the total length of the third transmission line 503 and the fourth transmission line 506 is set to a length shorter than a quarter wavelength in the band f.
- the combined impedance of the parallel circuit in the band 2 f indicates capacitive
- the combined impedance and the inductance of the fourth inductor 7 13 are set so that series resonance occurs in the band 2 f, and the capacitance of the ninth capacitor 5 09 Is set to a value large enough to cut off the bias current.
- the bias circuit 714 also functions as a notch circuit in the band 2f and the band 3f. At this time, since the fourth transmission line 506 can be shortened, the voltage drop of the bias current can be reduced, and as a result, the efficiency of the high-frequency amplifier can be improved.
- the transmission line and the capacitor in the third embodiment are formed by various methods, the present invention is not limited to the details. Also, by using the high-frequency amplifier of the present embodiment in a mobile communication device, harmonic distortion can be reduced with a simple configuration, so that a small-sized and high-performance mobile communication device can be configured. (Embodiment 4)
- FIG. 8 is a circuit diagram of a high-frequency amplifier according to Embodiment 4 of the present invention.
- One end of the fifth transmission line 803 and one end of the sixth transmission line 804 are connected between the amplification circuit 801 and the output-side matching circuit 802.
- the other end of the fifth transmission line 803 is connected to the power supply 805 and grounded via the first capacitor 806.
- the other end of the sixth transmission line 804 is connected to a power supply 805 and grounded via a twelfth capacitor 807.
- the operation of the high-frequency amplifier will be described.
- the length of the fifth transmission line 803 and the length of the sixth transmission line 804 are both set to a quarter wavelength of the band f.
- the capacitances of the first capacitor 806 and the second capacitor 807 are both set to relatively large values so as to be in a short state sufficiently in a frequency band higher than the band: f.
- the bias current flowing from the power source 805 is DC, it does not flow to the first and second capacitors 806 and 807, and the fifth transmission line 803 and the sixth transmission line 8 do not flow. After being divided into 04, they are merged again, flow to the amplifier circuit 81, and drive the amplifier circuit 81.
- the amplification circuit 8001 amplifies the signal in the band f, and at the same time produces harmonic distortion. Since the first capacitor 806 is sufficiently short-circuited in the band f, the phase of the signal is inverted at one end of the fifth transmission line 803 and becomes open in the band f, and the amplified signal is It does not flow to the first bias circuit 808.
- the phase of the signal is inverted at one end of the sixth transmission line 804 in the band f, and the open state is established.
- the supplied signal does not flow to the second bias circuit 809. Therefore increase
- the signal amplified by the width circuit 801 is output via the output-side matching circuit 802.
- the first capacitor 806 is in a sufficiently short state, and the length of the fifth transmission line 803 is a half wavelength, so that the first bias circuit 808 acts as a notch circuit. Therefore, the amplified signal has reduced harmonic distortion in the band 2 f and does not flow to the output side matching circuit 802.
- the second bias circuit 809 is Acts as a notch circuit. Therefore, the amplified signal is reduced in harmonic distortion in the band 2 f and does not flow to the output side matching circuit 802.
- this bias circuit acts as a notch circuit even in a frequency band that is an even multiple of the band f, its frequency characteristics form an attenuation pole.
- the voltage drop is halved and the notch effect overlaps in the same frequency band, so that a high-efficiency high-frequency amplifier can be configured, and harmonic distortion mainly in band 2f can be further reduced.
- both of the two bias circuits in the fourth embodiment are connected to capacitors that are sufficiently short-circuited in the frequency band equal to or higher than the band f.
- the mounting area of the bias circuit is reduced.
- the bias circuit according to Embodiment 4 is formed of two identical transmission lines, at least one of the two may be connected to the bias circuit 107 shown in FIG. As described in the first embodiment, the bias circuit 107 forms a notch in the band 3 f, so that the harmonics also occur in the band 3 f in addition to the band 2 f (band 4 f, band 6 f,). Wave distortion can be reduced.
- the bias circuit 207 and the output-side matching circuit 202 shown in FIG. 2 may be used for the bias circuit and the output-side matching circuit in the fourth embodiment.
- harmonic distortion mainly in band 2f and band 3f can be reduced, and the number of circuit elements can be reduced.
- at least one of the two transmission lines of the bias circuit according to the fourth embodiment may be the bias circuit 408 shown in FIG. 4 or the bias circuit 510 shown in FIG.
- the bias circuit 714 shown in FIG. 7 is connected, the voltage drop of the bias current can be similarly reduced, the harmonic distortion in band 2 f can be further reduced, and band 2 f (band 4 f, band 4 f In addition to 6 f,...), Harmonic distortion can be reduced in band 3 f.
- the two transmission lines of the bias circuit in Embodiment 4 are both connected between the amplifier circuit 81 and the output matching circuit 802, but as shown in FIG.
- the output side matching circuit 202 of FIG. 2 may be connected, and bias circuits may be connected to both sides of the first inductor 209, respectively.
- the wiring connecting the amplifier circuit 81 and the output-side matching circuit 202 can be shortened, and as a result, the loss of the amplified signal in the band f can be reduced.
- the bias circuit connected to the connection point between the first inductor 209 and the fourth capacitor 210 is the bias circuit 107 shown in FIG. 1, the first capacitor 104 is also connected. Can be included in the capacity of the fourth capacitor 210. Also in this case, the area for mounting the bias circuit can be reduced.
- the transmission line and the capacitor in the fourth embodiment are formed by various methods, the present embodiment is not limited to the details.
- harmonic distortion can be reduced with a simple configuration, so that a small-sized and high-performance mobile communication device can be configured.
- a parallel circuit may be formed with the 14th capacitor as shown in FIG. In this case, the transmission path of the output signal can be shortened, so that signal loss can be reduced.
- the resonance point of the parallel circuit is matched with the frequency of the harmonic distortion by the amplifier circuit 81 such as the band 2f or the band 3f, so that the distortion can be reduced. This effect can be applied to all of the first, second, and third embodiments. (Embodiment 5)
- FIG. 12 is a perspective view of a high-frequency amplifier according to Embodiment 5 of the present invention.
- An integrated circuit (PA-IC) for amplifier circuit and chip capacitor are mounted on a dielectric substrate, and a transmission line and an inductor are used as electrodes. It is formed by a pan.
- the equivalent circuit is the circuit described in the first embodiment, the second embodiment, the third embodiment, or the fourth embodiment.
- the high-frequency operation of the circuit is the same as the operation described in the first, second, third, or fourth embodiment.
- the transmission line and the electrodes for connection between the inductor and the element can all be manufactured in the same process, a high-frequency amplifier can be realized at low cost.
- the transmission line is formed by an electrode pattern on a dielectric substrate, but may be a chip inductor. In this case, the area of the circuit can be reduced.
- FIG. 13 is a perspective view of a high-frequency amplifier according to Embodiment 6 of the present invention.
- a capacitor electrode 1302 and an inductor electrode 1303 are arranged on a plurality of dielectric layers 1301.
- An integrated circuit for amplifier circuit (P A -I C) 134 is mounted on the upper side of the uppermost dielectric layer, and the elements are electrically connected.
- the equivalent circuit is the circuit described in the first embodiment, the second embodiment, the third embodiment, or the fourth embodiment.
- Embodiment 1 The high-frequency operation of the circuit is described in Embodiment 1, Embodiment 2, Embodiment 3, Is the same as the operation described in the fourth embodiment.
- the transmission line, the inductor, and the capacitor are mounted in a laminated body formed of a plurality of dielectric layers, the number of components can be reduced and a high-frequency amplifier can be realized at a low price.
- the transmission line, the inductor, and the condenser are provided in the laminated body.
- a part of the transmission line Alternatively, it may be mounted as an electrode pattern. In this case, the degree of freedom in circuit design increases.
- a bias circuit in a high-frequency amplifier including an amplifier circuit, an output-side matching circuit, and a bias circuit, is used in a desired frequency band while maintaining an open state in a frequency band of a signal amplified by the amplifier circuit. And the harmonic distortion can be reduced as a result.
- the voltage drop of each bias circuit itself can be reduced, and as a result, a high-frequency amplifier with low current consumption and high efficiency can be realized.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microwave Amplifiers (AREA)
- Amplifiers (AREA)
- Waveguide Connection Structure (AREA)
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- Control Of Motors That Do Not Use Commutators (AREA)
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP01272810A EP1347572A4 (en) | 2000-12-28 | 2001-12-14 | HIGH FREQUENCY AMPLIFIER |
| US10/220,113 US6768383B2 (en) | 2000-12-28 | 2001-12-14 | High-frequency amplifier |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000400451A JP2002204133A (ja) | 2000-12-28 | 2000-12-28 | 高周波増幅器 |
| JP2000-400451 | 2000-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2002054585A1 true WO2002054585A1 (en) | 2002-07-11 |
Family
ID=18865042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2001/010993 Ceased WO2002054585A1 (en) | 2000-12-28 | 2001-12-14 | High-frequency amplifier |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6768383B2 (ja) |
| EP (1) | EP1347572A4 (ja) |
| JP (1) | JP2002204133A (ja) |
| WO (1) | WO2002054585A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005039537A (ja) * | 2003-07-15 | 2005-02-10 | Stanley Electric Co Ltd | 広帯域増幅器 |
| JP4588699B2 (ja) * | 2004-04-28 | 2010-12-01 | 三菱電機株式会社 | バイアス回路 |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005027945B4 (de) * | 2005-06-16 | 2012-06-06 | Epcos Ag | Verlustarmes elektrisches Bauelement mit einem Verstärker |
| JP5143523B2 (ja) * | 2006-10-25 | 2013-02-13 | 株式会社エヌ・ティ・ティ・ドコモ | バイアス回路 |
| KR100905202B1 (ko) | 2007-09-03 | 2009-06-26 | 성균관대학교산학협력단 | 도허티 증폭기 |
| US8149060B2 (en) * | 2008-03-25 | 2012-04-03 | Mitsubishi Electric Corporation | Low distortion amplifier and Doherty amplifier using low distortion amplifier |
| EP2242141A1 (en) * | 2009-04-17 | 2010-10-20 | Alcatel Lucent | Electronic circuit for RF applications and corresponding power amplifier |
| JP2011155357A (ja) * | 2010-01-26 | 2011-08-11 | Murata Mfg Co Ltd | マルチバンド電力増幅器 |
| EP2722981A1 (en) * | 2012-10-16 | 2014-04-23 | Nxp B.V. | Amplifier circuits |
| EP2722880B1 (en) | 2012-10-16 | 2018-02-28 | Ampleon Netherlands B.V. | Packaged RF amplifier circuit |
| CN105141274B (zh) * | 2015-09-24 | 2018-08-07 | 重庆大及电子科技有限公司 | 滤波组件及其应用 |
| JP2017208729A (ja) * | 2016-05-19 | 2017-11-24 | 株式会社村田製作所 | 電力増幅モジュール |
| KR102830332B1 (ko) * | 2022-12-09 | 2025-07-08 | 한국전자통신연구원 | 반도체 패키지 |
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| JPH06140862A (ja) * | 1990-08-31 | 1994-05-20 | Texas Instr Inc <Ti> | モノシリックに実現可能な無線周波数バイアス・チョーク |
| JPH11205052A (ja) * | 1998-01-16 | 1999-07-30 | Kyocera Corp | 高周波用電力増幅器 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3919656A (en) * | 1973-04-23 | 1975-11-11 | Nathan O Sokal | High-efficiency tuned switching power amplifier |
| JP3462760B2 (ja) * | 1997-09-04 | 2003-11-05 | 三洋電機株式会社 | 分布定数回路、高周波回路、バイアス印加回路およびインピーダンス調整方法 |
| JP3888785B2 (ja) * | 1998-09-28 | 2007-03-07 | 三菱電機株式会社 | 高周波電力増幅器 |
| US20020050851A1 (en) * | 1999-12-22 | 2002-05-02 | Grundlingh Johan M. | Method and apparatus for biasing radio frequency power transistors |
-
2000
- 2000-12-28 JP JP2000400451A patent/JP2002204133A/ja active Pending
-
2001
- 2001-12-14 WO PCT/JP2001/010993 patent/WO2002054585A1/ja not_active Ceased
- 2001-12-14 US US10/220,113 patent/US6768383B2/en not_active Expired - Fee Related
- 2001-12-14 EP EP01272810A patent/EP1347572A4/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06140862A (ja) * | 1990-08-31 | 1994-05-20 | Texas Instr Inc <Ti> | モノシリックに実現可能な無線周波数バイアス・チョーク |
| JPH11205052A (ja) * | 1998-01-16 | 1999-07-30 | Kyocera Corp | 高周波用電力増幅器 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1347572A4 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005039537A (ja) * | 2003-07-15 | 2005-02-10 | Stanley Electric Co Ltd | 広帯域増幅器 |
| JP4588699B2 (ja) * | 2004-04-28 | 2010-12-01 | 三菱電機株式会社 | バイアス回路 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1347572A1 (en) | 2003-09-24 |
| JP2002204133A (ja) | 2002-07-19 |
| EP1347572A4 (en) | 2004-11-03 |
| US6768383B2 (en) | 2004-07-27 |
| US20040027204A1 (en) | 2004-02-12 |
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