WO2014155512A1 - 電力増幅器 - Google Patents
電力増幅器 Download PDFInfo
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- WO2014155512A1 WO2014155512A1 PCT/JP2013/058731 JP2013058731W WO2014155512A1 WO 2014155512 A1 WO2014155512 A1 WO 2014155512A1 JP 2013058731 W JP2013058731 W JP 2013058731W WO 2014155512 A1 WO2014155512 A1 WO 2014155512A1
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- amplification unit
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- 238000003199 nucleic acid amplification method Methods 0.000 claims description 166
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- 230000002194 synthesizing effect Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 10
- 238000009826 distribution Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 3
- 230000010363 phase shift Effects 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0288—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using a main and one or several auxiliary peaking amplifiers whereby the load is connected to the main amplifier using an impedance inverter, e.g. Doherty amplifiers
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
-
- 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
- H03F3/602—Combinations of several amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/405—Indexing scheme relating to amplifiers the output amplifying stage of an amplifier comprising more than three power stages
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/20—Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F2203/21—Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F2203/211—Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
- H03F2203/21106—An input signal being distributed in parallel over the inputs of a plurality of power amplifiers
Definitions
- the present invention relates to a power amplifier used for power amplification of an RF (Radio Frequency) signal.
- Power amplifiers used in wireless communication systems and the like are required to have high linearity and high efficiency with respect to input / output characteristics.
- a signal having a significantly different average value and maximum amplitude of signal amplitude is often handled by adopting a multi-value digital modulation method or the like.
- the operating point of the transistor is set so that the conventional power amplifier can amplify the signal to the maximum amplitude without distortion. For this reason, the power amplifier has almost no time to operate near the saturation output of a transistor that operates at a relatively high efficiency, and thus the efficiency decreases.
- FIG. 1 is a block diagram showing a configuration example of a Doherty amplifier.
- a Doherty amplifier 1 includes a main amplifier 2 that always performs signal amplification, a peak amplifier 3 that operates at the time of high power output, and a distributor that distributes an input signal to the main amplifier 2 and the peak amplifier 3. 4 and a combiner 5 that combines and outputs the output signal of the main amplifier 2 and the output signal of the peak amplifier 3.
- the main amplifier 2 uses an amplifying circuit composed of one transistor or a push-pull type amplifying circuit composed of two transistors, and normally the amplifying circuit is biased to operate in class AB or class B. Is done.
- the peak amplifier 3 uses an amplifying circuit composed of one transistor or a push-pull type amplifying circuit composed of two transistors, and the amplifying circuit is normally biased to operate in class C.
- the distributor 4 equally distributes the power of the input signal to the main amplifier 2 and the peak amplifier 3, and delays the phase of the signal supplied to the peak amplifier 3 by 90 degrees with respect to the phase of the signal supplied to the main amplifier 2.
- a known 3 dB coupler is used for the distributor 4.
- the 3 dB coupler includes four input / output terminals, an RF signal is input from one input terminal, and the other input terminal is grounded via a termination resistor.
- a signal in phase with the input signal is output from one output terminal of the 3 dB coupler and supplied to the main amplifier 2. From the other output terminal of the 3 dB coupler, a signal whose phase is delayed by 90 degrees with respect to the input signal is output and supplied to the peak amplifier 3.
- a known ⁇ / 4 wavelength transmission line ( ⁇ / 4 wavelength line) is used so that the output signal of the main amplifier 2 and the output signal of the peak amplifier 3 are combined in phase.
- the ⁇ / 4 wavelength line is realized by a printed pattern formed on a printed circuit board.
- the Doherty amplifier 1 is also described in Patent Document 1, for example.
- FIG. 1 When realizing a power amplifier that outputs a large amount of power using the Doherty amplifier 1 shown in FIG. 1, in general, a plurality of Doherty amplifiers 1 are prepared, and the same signal is distributed to each Doherty amplifier 1. What is necessary is just to synthesize
- a configuration example of a power amplifier of the background art including the plurality of Doherty amplifiers 1 is shown in FIG.
- FIG. 2 is a block diagram showing a configuration example of a power amplifier of the background art.
- the background art power amplifier 10 includes an RF signal input port 11, a variable attenuator 12, a variable phase shifter 13, a driver stage 14, an n (n is a positive integer of 2 or more) distributor 15, A final stage 16, an n combiner 17, and an RF signal output port 18 are provided.
- FIG. 2 shows an example in which the driver stage 14 is composed of one Doherty amplifier 1 and the final stage 16 is composed of n Doherty amplifiers 1 connected in parallel.
- the main amplifier of each Doherty amplifier 1 included in the driver stage 14 and the final stage 16 is biased to operate in class AB or class B, and the peak amplifier is biased to operate in class C.
- the variable attenuator 12 has a configuration that can be set to a desired attenuation amount by a control signal supplied from the outside, and attenuates and outputs the RF signal input from the RF signal input port 11.
- variable phase shifter 13 can be set to a desired phase shift amount by a control signal supplied from the outside, and outputs the delayed phase of the RF signal output from the variable attenuator 12.
- the driver stage 14 amplifies the RF signal output from the variable phase shifter 13 and outputs it to the n distributor 15.
- the n distributor 15 distributes the RF signal supplied from the driver stage 14 to n Doherty amplifiers 1 included in the final stage 16.
- the final stage 16 amplifies the RF signals distributed by the n distributor 15 by n Doherty amplifiers 1 respectively.
- the n synthesizer 17 synthesizes the RF signals amplified by the respective Doherty amplifiers 1 included in the final stage 16 and outputs them from the RF signal output port 18.
- the impedance of the output terminal of the peak amplifier 3 viewed from the output terminal of the main amplifier 2 is It must be open (open).
- the impedance of the output terminal of the peak amplifier 3 is not open, a part of the output power of the main amplifier 2 goes around to the peak amplifier 3, and the output power of the synthesizer 5 is reduced by that amount, causing a power loss.
- the ⁇ / 4 wavelength line constituting the synthesizer 5 is also used to open the impedance of the output terminal of the peak amplifier 3 as viewed from the output terminal of the main amplifier 2.
- the ⁇ / 4 wavelength line is created by determining the substrate material and physical line length according to the frequency band used, its characteristics strongly depend on the frequency, and the usable frequency range is limited. There is.
- the power amplifier 10 including the plurality of Doherty amplifiers shown in FIG. When used in a transmitter, it is difficult for the power amplifier 10 to cover the entire frequency band of the VHF band or the UHF band.
- the ⁇ / 4 wavelength line used in the synthesizer 5 (hereinafter referred to as “Doherty synthesizer”) 5 of the Doherty amplifier 1 has a physical line length determined according to the substrate material and the frequency band. Is changed, it is necessary to replace the printed circuit board on which the ⁇ / 4 wavelength line is formed. Alternatively, it is necessary to process the printed circuit board such as cutting or extending the ⁇ / 4 wavelength line.
- an object of the present invention is to provide a power amplifier that can reduce the manufacturing cost and can easily cope with the change of the used frequency band.
- a power amplifier comprises: Provided with a plurality of amplifier circuits connected in parallel, the bias voltage of which can be adjusted according to the control signal supplied from the outside, the input signals are respectively amplified by the plurality of amplifier circuits, and the amplified signals are synthesized A first amplification unit and a second amplification unit that output A distributor for distributing an input signal to the first amplification unit and the second amplification unit; A combiner that combines and outputs the output signal of the first amplification unit and the output signal of the second amplification unit; Have The plurality of amplifier circuits included in the first amplifier unit are biased so as to operate in class AB or class B, respectively, and the plurality of amplifier circuits included in the second amplifier unit are biased so as to operate in class C, respectively.
- the synthesizer The output signal of the first amplification unit and the output signal of the second amplification unit are combined so that the first amplification unit and the second amplification unit operate as a Dohert
- a plurality of amplifier circuits connected in parallel, the bias voltage of which can be adjusted according to a control signal supplied from the outside, and amplifying the input signals by the plurality of amplifier circuits respectively;
- a first amplification unit and a second amplification unit for combining and outputting signals;
- a distributor that distributes an input signal to the first amplification unit and the second amplification unit, and a combiner that combines and outputs the output signal of the first amplification unit and the output signal of the second amplification unit
- An m distributor that distributes an input signal to the m distributors; an m combiner for combining and outputting the output signals of the m sets of the first amplification unit and the second amplification unit;
- FIG. 1 is a block diagram illustrating a configuration example of a Doherty amplifier.
- FIG. 2 is a block diagram illustrating a configuration example of a power amplifier according to the background art.
- FIG. 3 is a block diagram illustrating a configuration example of the power amplifier according to the first embodiment.
- FIG. 4 is a block diagram illustrating a configuration example of the amplification unit illustrated in FIG.
- FIG. 5 is a perspective view showing an implementation example of the power amplifier according to the first embodiment shown in FIG.
- FIG. 6 is a block diagram illustrating a configuration example of the power amplifier according to the second embodiment.
- FIG. 3 is a block diagram showing a configuration example of the power amplifier according to the first embodiment
- FIG. 4 is a block diagram showing a configuration example of the amplification unit shown in FIG.
- the power amplifier 20 of the first embodiment includes m (m is a positive integer of 2 or more) sets of distributors 21, first amplification units 22, second amplification units 23, and Doherty combiners. 24, an RF signal input port 25, a broadband m distributor 26, a broadband m synthesizer 27, and an RF signal output port 28.
- the first amplification unit 22 operates as a main amplifier
- the second amplification unit 23 operates as a peak amplifier, so that m sets of the first amplification unit 22 and the second amplification unit 23 are operated. Each operate as a Doherty amplifier.
- the first amplification unit 22 and the second amplification unit 23 operate as Doherty amplifiers.
- the first amplification unit 22 and the second amplification unit 23 do not necessarily have to operate as Doherty amplifiers.
- the first amplification unit 22 and the second amplification unit 23 that operate as a Doherty amplifier may be at least one set.
- the power amplifier according to the present embodiment includes one or more sets of the first amplification unit. 22 and the 2nd amplification unit 23 should just be provided, and what is necessary is just to set the number of sets of the 1st amplification unit 22 and the 2nd amplification unit 23 according to required RF output, for example.
- the power amplifier includes only one set of the first amplification unit 22 and the second amplification unit 23, the broadband m distributor 26 and the broadband m combiner 27 are not necessary.
- the first amplification unit 22 and the second amplification unit 23 each include n amplification circuits (n is a positive integer) connected in parallel.
- the n amplification circuits included in the first amplification unit 22 each use an amplification circuit composed of one transistor or a push-pull type amplification circuit composed of two transistors, which are supplied from the outside.
- the control signal is biased so as to operate in class AB or class B.
- an amplifier circuit composed of one transistor or a push-pull amplifier circuit composed of two transistors is used, respectively. It is configured to be biased so as to operate in class C by a control signal supplied from the outside.
- An RF signal is input to the pair of first amplification unit 22 and second amplification unit 23 via a corresponding distributor 21, and output signals of the first amplification unit 22 and second amplification unit 23 correspond to each other. It is synthesized by the Doherty synthesizer 24 and output.
- the distributor 21 equally distributes the power of the input signal to the first amplification unit 22 and the second amplification unit 23 that form a pair, and converts the phase of the signal supplied to the second amplification unit 22 that operates as a peak amplifier into the main amplifier. Is delayed by 90 degrees with respect to the phase of the signal supplied to the first amplification unit 23 operating as
- the distributor 21 is a known 3 dB coupler that can be used in a relatively wide frequency band.
- the distributor 21 may be a well-known Wilkinson type power distribution circuit, which will be described later, or a multistage coupler cascade connection type power distribution circuit.
- a Wilkinson type power distribution circuit is used as the distributor 21, a circuit for delaying the phase of the signal supplied to the peak amplifier 3 by 90 degrees with respect to the phase of the signal supplied to the main amplifier 2 may be provided.
- ⁇ / 4 wavelength transmission line ( ⁇ / 4 wavelength line) is used as in the Doherty amplifier shown in FIG. 1.
- the broadband m distributor 26 distributes the RF signal input from the RF signal input port 25 to the m distributors 21 with equal power.
- the broadband m distributor 26 may be a well-known Wilkinson type power distribution circuit that can be used in a relatively wide frequency band.
- the broadband m synthesizer 27 synthesizes the RF signals output from the m Doherty synthesizers 24 and outputs them from the RF signal output port 28.
- the wideband m synthesizer 27 does not need to consider the impedance of the output terminal of the peak amplifier as viewed from the output terminal of the main amplifier unlike the Doherty synthesizer, so that the well-known Wilkinson that can be used in a relatively wide frequency band is used.
- a type synthesis circuit may be used.
- the broadband m distributor 26 and the broadband m combiner 27 have a multi-stage coupler cascade connection system that supports a wide frequency band by cascading a plurality of ⁇ / 4 wavelength couplers having different degrees of coupling according to the number of distribution / synthesis.
- a power distribution circuit / combination circuit can also be used. In the power distribution circuit / combination circuit of the multistage coupler cascade connection system, it is possible to cope with a wider frequency band by using the 3 ⁇ / 4 wavelength coupler.
- FIG. 5 is a perspective view showing an implementation example of the power amplifier according to the first embodiment shown in FIG.
- the power amplifier 20 of the present embodiment includes a first amplification unit 22, a second amplification unit 23, a divider 21, a broadband m divider 26, a Doherty synthesizer 24, and a broadband m synthesizer 27. Each is housed in a separate housing.
- the m first amplification units 22 and the second amplification units 23 are sequentially stacked, and distributors 21 are respectively attached to the input ports of the first amplification unit 22 and the second amplification unit 23 that form a pair.
- a broadband m distributor 26 is attached to the input port.
- a Doherty synthesizer 24 is attached to each of the output ports of the first amplification unit 22 and the second amplification unit 23 that form a pair, and a broadband m synthesizer 27 is attached to the output port of each Doherty synthesizer 24. .
- the power amplifier 20 of the present embodiment includes the first amplifying unit 22, the second amplifying unit 23, the distributor 21, the broadband m distributor 26, and the broadband m synthesizer 27.
- the configuration is usable in a wide frequency band, and only the Doherty synthesizer 24 is a circuit in which the used frequency band is limited.
- the power amplifier 20 of the present embodiment only needs to change the Doherty synthesizer 24 according to the used frequency band, and the other first amplification unit 22, second amplification unit 23, distributor 21, and broadband m distributor. 26 and the broadband m combiner 27 can be used in common. Therefore, since these components can be made in large quantities, the manufacturing cost of the power amplifier can be reduced.
- the first amplification unit 22, the second amplification unit 23, the distributor 21, the Doherty combiner 24, the broadband m distributor 26, and the broadband m combiner 27 are housed in different cases. Therefore, the Doherty synthesizer 24 can be easily replaced.
- the first amplification unit 22 and the second amplification unit 23 can adjust the bias voltage of each amplification circuit included in the first amplification unit 22 and the second amplification unit 23 from the outside. Since an amplifier can be realized, a highly efficient power amplifier 20 can be obtained.
- FIG. 6 is a block diagram illustrating a configuration example of the power amplifier according to the second embodiment.
- a synthesizer 41 that can be used in a relatively wide frequency band such as a 3 dB coupler is used, so that the first synthesizer 41 corresponding to the synthesizer 41 is used.
- the amplification unit 22 and the second amplification unit 23 cannot realize a Doherty amplifier. In that case, the first amplification unit 22 and the second amplification unit 23 are each operated as a main amplifier (linear amplifier).
- the unit 22 and the second amplification unit 23 do not need to have the corresponding combiners 41, respectively.
- the Doherty synthesizer 24 may be provided in the first amplification unit 22 and the second amplification unit 23 in which the synthesizer 41 is not disposed, and may be operated as a Doherty amplifier. Since other configurations and operations are the same as those in the first embodiment, the description thereof is omitted.
- the first amplifying unit 22 and the second amplifying unit 23 provided with the synthesizer 41 are operated in class AB or class B, so that the power amplifier 20 shown in the first embodiment is used.
- the efficiency decreases.
- the configuration called is known.
- the amplification unit used as the backup system needs to correspond to all frequency bands that are amplified by the power amplifier 40.
- the power amplifier 40 according to the second embodiment can include the first amplification unit 22 and the second amplification unit 23 that can be used in a relatively wide frequency band. Can be realized.
- the power amplifier 40 of this embodiment also includes the first amplification unit 22, the second amplification unit 23, the distributor 21, the combiner 41, the broadband m distributor 26, and the broadband.
- Each of the m combiners 27 is housed in a separate casing. Therefore, it is easy to replace the Doherty synthesizer 24 with the synthesizer 41, and the power amplifier 40 of this embodiment can be easily realized.
- the power amplifier 40 of the second embodiment also includes a first amplification unit 22, a second amplification unit 23, a distributor 21, a broadband m distributor 26, and Since the broadband m combiner 27 can be used in common, it is possible to make a large amount of these components, and the manufacturing cost of the power amplifier 40 can be reduced.
- the use frequency band is changed.
- only the Doherty synthesizer 24 may be changed according to the frequency band used, and the signal phase, gain, and bias voltage between the input and output ports may be adjusted from the outside. Therefore, it is possible to easily cope with the case where the used frequency band of the first amplification unit 22 and the second amplification unit 23 operated as the Doherty amplifier is changed.
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Abstract
Description
外部から供給される制御信号にしたがってバイアス電圧が調整可能な、並列に接続された複数の増幅回路を備え、入力された信号を前記複数の増幅回路でそれぞれ増幅し、増幅後の信号を合成して出力する第1増幅ユニット及び第2増幅ユニットと、
入力された信号を前記第1増幅ユニットと前記第2増幅ユニットとに分配する分配器と、
前記第1増幅ユニットの出力信号と前記第2増幅ユニットの出力信号とを合成して出力する合成器と、
を有し、
前記第1増幅ユニットが備える複数の増幅回路がAB級またはB級動作するようにそれぞれバイアスされ、前記第2増幅ユニットが備える複数の増幅回路がC級動作するようにそれぞれバイアスされ、
前記合成器は、
前記第1増幅ユニット及び前記第2増幅ユニットがドハティ増幅器として動作するように前記第1増幅ユニットの出力信号と前記第2増幅ユニットの出力信号とを合成する構成である。
m組の、外部から供給される制御信号にしたがってバイアス電圧が調整可能な、並列に接続された複数の増幅回路を備え、入力された信号を前記複数の増幅回路でそれぞれ増幅し、増幅後の信号を合成して出力する第1増幅ユニット及び第2増幅ユニット、
入力された信号を前記第1増幅ユニットと前記第2増幅ユニットとに分配する分配器、並びに
前記第1増幅ユニットの出力信号と前記第2増幅ユニットの出力信号とを合成して出力する合成器と、
入力された信号をm台の前記分配器にそれぞれ分配するm分配器と、
m組の前記第1増幅ユニット及び前記第2増幅ユニットの出力信号をそれぞれ合成して出力するm合成器と、
を有する。
(第1の実施の形態)
図3は第1実施の形態の電力増幅器の一構成例を示すブロック図であり、図4は図3に示した増幅ユニットの一構成例を示すブロック図である。
(第2の実施の形態)
図6は、第2実施の形態の電力増幅器の一構成例を示すブロック図である。
Claims (6)
- 外部から供給される制御信号にしたがってバイアス電圧が調整可能な、並列に接続された複数の増幅回路を備え、入力された信号を前記複数の増幅回路でそれぞれ増幅し、増幅後の信号を合成して出力する第1増幅ユニット及び第2増幅ユニットと、
入力された信号を前記第1増幅ユニットと前記第2増幅ユニットとに分配する分配器と、
前記第1増幅ユニットの出力信号と前記第2増幅ユニットの出力信号とを合成して出力する合成器と、
を有し、
前記第1増幅ユニットが備える複数の増幅回路がAB級またはB級動作するようにそれぞれバイアスされ、前記第2増幅ユニットが備える複数の増幅回路がC級動作するようにそれぞれバイアスされ、
前記合成器は、
前記第1増幅ユニット及び前記第2増幅ユニットがドハティ増幅器として動作するように前記第1増幅ユニットの出力信号と前記第2増幅ユニットの出力信号とを合成する電力増幅器。 - mを2以上の正の整数としたとき、
m組の、外部から供給される制御信号にしたがってバイアス電圧が調整可能な、並列に接続された複数の増幅回路を備え、入力された信号を前記複数の増幅回路でそれぞれ増幅し、増幅後の信号を合成して出力する第1増幅ユニット及び第2増幅ユニット、
入力された信号を前記第1増幅ユニットと前記第2増幅ユニットとに分配する分配器、並びに
前記第1増幅ユニットの出力信号と前記第2増幅ユニットの出力信号とを合成して出力する合成器と、
入力された信号をm台の前記分配器にそれぞれ分配するm分配器と、
m組の前記第1増幅ユニット及び前記第2増幅ユニットの出力信号をそれぞれ合成して出力するm合成器と、
を有する電力増幅器。 - m組の前記第1増幅ユニット、前記第2増幅ユニット及び前記合成器のうち、少なくとも1組の前記第1増幅ユニットが備える複数の増幅回路がAB級またはB級動作するようにそれぞれバイアスされ、前記第2増幅ユニットが備える複数の増幅回路がC級動作するようにそれぞれバイアスされ、
前記合成器は、
前記第1増幅ユニット及び前記第2増幅ユニットがドハティ増幅器として動作するように前記第1増幅ユニットの出力信号と前記第2増幅ユニットの出力信号とを合成する請求項2記載の電力増幅器。 - m組の前記第1増幅ユニット及び前記第2増幅ユニットのうち、少なくとも1組の前記第1増幅ユニット及び前記第2増幅ユニットが備える複数の増幅回路がAB級またはB級動作するようにそれぞれバイアスされた請求項2または3記載の電力増幅器。
- 前記第1増幅ユニット及び前記第2増幅ユニットが、
外部から供給される制御信号にしたがって入力された信号を減衰させる可変アッテネータと、
外部から供給される制御信号にしたがって入力された信号の位相を遅延させる可変移相器と、
をさらに有する請求項1から4のいずれか1項記載の電力増幅器。 - 前記第1増幅ユニット、前記第2増幅ユニット、前記分配器、前記合成器、前記m分配器及び前記m合成器が、それぞれ個別の筐体に収納された請求項2から6のいずれか1項記載の電力増幅器。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13880270.7A EP2980990B1 (en) | 2013-03-26 | 2013-03-26 | Power amplifier |
PCT/JP2013/058731 WO2014155512A1 (ja) | 2013-03-26 | 2013-03-26 | 電力増幅器 |
US14/780,826 US9667198B2 (en) | 2013-03-26 | 2013-03-26 | Power amplifier |
JP2015507731A JP6160689B2 (ja) | 2013-03-26 | 2013-03-26 | 電力増幅器 |
HK16102267.4A HK1214419A1 (zh) | 2013-03-26 | 2016-02-26 | 功率放大器 |
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PCT/JP2013/058731 WO2014155512A1 (ja) | 2013-03-26 | 2013-03-26 | 電力増幅器 |
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PCT/JP2013/058731 WO2014155512A1 (ja) | 2013-03-26 | 2013-03-26 | 電力増幅器 |
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US (1) | US9667198B2 (ja) |
EP (1) | EP2980990B1 (ja) |
JP (1) | JP6160689B2 (ja) |
HK (1) | HK1214419A1 (ja) |
WO (1) | WO2014155512A1 (ja) |
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WO2016199178A1 (ja) * | 2015-06-08 | 2016-12-15 | 日本電気株式会社 | 電力増幅装置およびテレビジョン信号送信システム |
WO2017037762A1 (ja) * | 2015-09-01 | 2017-03-09 | 日本電気株式会社 | 電力増幅装置およびテレビジョン信号送信システム |
JP2018110456A (ja) * | 2018-04-12 | 2018-07-12 | 日本電気株式会社 | 電力増幅装置およびテレビジョン信号送信システム |
JP2018164256A (ja) * | 2017-03-27 | 2018-10-18 | イオン・ビーム・アプリケーションズ・エス・アー | 大電力rf増幅器を備えるラック |
JPWO2017221768A1 (ja) * | 2016-06-24 | 2019-04-18 | 東京計器株式会社 | 増幅装置 |
JP2020074600A (ja) * | 2018-04-12 | 2020-05-14 | 日本電気株式会社 | 電力増幅装置およびテレビジョン信号送信システム |
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US11146223B2 (en) * | 2019-07-01 | 2021-10-12 | Raytheon Company | High power radio frequency (RF) amplifiers |
TWI710209B (zh) * | 2019-07-02 | 2020-11-11 | 立積電子股份有限公司 | 放大裝置 |
CN113258945B (zh) * | 2021-05-13 | 2022-07-19 | 中国科学院近代物理研究所 | 一种非平衡功率合成装置及方法 |
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Also Published As
Publication number | Publication date |
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US20160065141A1 (en) | 2016-03-03 |
HK1214419A1 (zh) | 2016-07-22 |
JPWO2014155512A1 (ja) | 2017-02-16 |
EP2980990A1 (en) | 2016-02-03 |
EP2980990B1 (en) | 2019-01-02 |
JP6160689B2 (ja) | 2017-07-12 |
US9667198B2 (en) | 2017-05-30 |
EP2980990A4 (en) | 2017-03-08 |
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