CN215934820U - Multi-path power combined radio frequency power amplifier and radio frequency front end architecture - Google Patents
Multi-path power combined radio frequency power amplifier and radio frequency front end architecture Download PDFInfo
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- CN215934820U CN215934820U CN202122445263.1U CN202122445263U CN215934820U CN 215934820 U CN215934820 U CN 215934820U CN 202122445263 U CN202122445263 U CN 202122445263U CN 215934820 U CN215934820 U CN 215934820U
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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
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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
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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
- H03F3/20—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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
Abstract
The embodiment of the utility model discloses a multi-path power combined radio frequency power amplifier and a radio frequency front end architecture, wherein the radio frequency power amplifier comprises a first-stage transformer matching network, a first-stage double-path amplifying circuit, a second-stage transformer matching network, a second-stage four-path amplifying circuit, a third-stage transformer matching network, a third-stage eight-path amplifying circuit and an output transformer matching network which are sequentially connected; through the matching networks of the transformers at all levels, the single-ended radio frequency input signal RFin can be sequentially converted into two paths of differential signals, four paths of differential signals and eight paths of differential signals, and then the eight paths of differential signals are synthesized into one path of radio frequency output signal RFout to be output.
Description
Technical Field
The utility model relates to the technical field of power amplifiers, in particular to a multi-path power combined radio frequency power amplifier and a radio frequency front end architecture.
Background
The radio frequency power amplifier is an important component of the transmitter, is positioned at the final stage of the transmitter, and mainly has the functions of carrying out distortion-free amplification on a radio frequency signal of a previous stage and sending out the amplified signal from an antenna end. For different application scenarios, the power amplifier needs to achieve different output powers, linearity, efficiencies, and the like, and thus, it is ensured that a signal can be received safely, effectively, and reliably at a proper distance. The existing conventional impedance matching network may be formed by lumped-parameter reactance elements (such as capacitors and inductors) or by distributed-parameter elements (such as microstrip lines and strip lines). Typical matching network topologies include "L," "Π," and "T" matching networks formed by lumped elements, as well as distributed transmission line matching networks.
In the N77(3.3 GHz-4.2 GHz) band of 5G mobile communication technology, because each component at high frequency generates different levels of parasitic effect, and in the case of large output power, a larger total area of transistor emitters is required, which means that a plurality of transistors are connected in parallel to achieve the output power required by the design. The parallel connection of a plurality of transistors results in very small impedance values of the input end and the output end, and the matching is very difficult to design, and no matter the matching network is L-shaped, pi-shaped or T-shaped, the matching can be performed by cascading a plurality of topological structures or adding reactance elements. However, the addition of the cascade topology structure or the reactance element not only increases the layout area, but also increases the cost of the tape-out; introducing one more topology or reactance element will also result in increased insertion loss of the matching structure, which will have a large impact on the gain and output power of the overall circuit.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a multi-path power combined radio frequency power amplifier, which can effectively reduce the layout area, does not bring extra insertion loss, obviously improves the optimization effect of gain and output return loss, and is beneficial to obtaining higher output power.
In order to solve the above technical problem, in a first aspect, an embodiment of the present invention provides a multi-path power-combined radio frequency power amplifier, including a first-stage transformer matching network, a first-stage two-path amplifying circuit, a second-stage transformer matching network, a second-stage four-path amplifying circuit, a third-stage transformer matching network, a third-stage eight-path amplifying circuit, and an output transformer matching network, which are connected in sequence;
the input end of the first-stage transformer matching network is connected with a radio-frequency input signal RFin and used for converting the radio-frequency input signal RFin into two paths of first differential signals and respectively outputting the two paths of first differential signals to two input ends of the first-stage two-path amplifying circuit; the first-stage two-way amplifying circuit amplifies the two first differential signals and outputs the two first differential signals to two input ends of the second-stage transformer matching network respectively, the second-stage transformer matching network converts the two amplified first differential signals into four second differential signals and outputs the four second differential signals to four input ends of the second-stage four-way amplifying circuit respectively, and the second-stage four-way amplifying circuit amplifies the four second differential signals and outputs the four second differential signals to four input ends of the third-stage transformer matching network respectively;
the third-stage transformer matching network converts the amplified four second differential signals into eight third differential signals and outputs the eight third differential signals to eight input ends of the third-stage eight-circuit amplifying circuit respectively; the third-stage eight-circuit amplifying circuit amplifies the eight third differential signals and then respectively outputs the eight third differential signals to eight input ends of the output transformer matching network, and the output transformer matching network synthesizes the eight third differential signals into one radio frequency output signal RFout and outputs the radio frequency output signal RFout.
Furthermore, the first stage transformer matching network comprises a first transformer T1, a first inductor L1, and two first capacitors C1;
one input end of the first transformer T1 is connected to a radio frequency input signal RFin as an input end of the first stage transformer matching network, and the other input end of the first transformer T1 is grounded through the first inductor L1; two output ends of the first transformer T1 are respectively used as two output ends of the first-stage transformer matching network, and are respectively connected with two input ends of the first-stage double-path amplifying circuit through the two first capacitors C1.
Further, the second stage transformer matching network includes two second transformers T2, two second inductors L2, and four second capacitors C2;
one input end of each second transformer T2 is used as one input end of the second-stage transformer matching network and is connected with one output end of the first-stage two-way amplifying circuit; the other input end of each second transformer T2 is grounded through one second inductor L2;
each output end of each second transformer T2 is used as an output end of the second stage transformer matching network, and is connected with an input end of the second stage four-way amplifying circuit through a second capacitor C2.
Further, the third stage transformer matching network includes four third transformers T3, four third inductors L3, and eight third capacitors C3;
an input end of each third transformer T3 is used as an input end of the third-stage transformer matching network and is connected with an output end of the second-stage four-way amplifying circuit; the other input end of each third transformer T3 is connected with a power supply voltage Vcc2 through a third inductor L3;
each output end of each third transformer T3 is used as an output end of the third stage transformer matching network, and is connected with one input end of the third stage eight-circuit amplifying circuit through a third capacitor C3.
Further, the output transformer matching network includes four fourth transformers T4, two fifth transformers T5, one sixth transformer T6, four fourth inductors L4, four fifth inductors L5, two sixth inductors L6, two seventh inductors L7, and one eighth inductor L8;
two input ends of each fourth transformer T4 are used as two input ends of the output transformer matching network and are connected with two output ends of the third-stage eight-circuit amplifying circuit; one output terminal of each of the fourth transformers T4 is connected to one input terminal of one of the fifth transformers T5 through one of the fourth inductors L4, and the other output terminal of each of the fourth transformers T4 is grounded through one of the fifth inductors L5;
an output terminal of each of the fifth transformers T5 is connected to an input terminal of the sixth transformer T6 through a sixth inductor L6, and the other output terminal of each of the fifth transformers T5 is grounded through a seventh inductor L7;
one output terminal of the sixth transformer T6 serves as the output terminal of the output transformer matching network for outputting the rf output signal RFout, and the other output terminal of the sixth transformer T6 is grounded through the eighth inductor L8.
Further, the output transformer matching network includes four seventh transformers T7, an eighth transformer T8, four ninth inductors L9, and a tenth inductor L10;
two input ends of each seventh transformer T7 are used as two input ends of the output transformer matching network and are connected with two output ends of the third-stage eight-circuit amplifying circuit; wherein one output terminal of two of the seventh transformers T7 is connected and the connection node is connected with one input terminal of the eighth transformer T8, and the other output terminal of two of the seventh transformers T7 is grounded through one of the ninth inductors L9; one output terminals of the other two seventh transformers T7 are connected, and the connection node is connected to the other input terminal of the eighth transformer T8, and the other output terminals of the other two seventh transformers T7 are grounded through one ninth inductor L9; one output terminal of the eighth transformer T8 serves as the output terminal of the output transformer matching network for outputting the rf output signal RFout, and the other output terminal of the eighth transformer T8 is grounded through the tenth inductor L10.
Furthermore, the first-stage two-way amplifying circuit includes two first transistors Q1, each first transistor Q1 is used to implement one-way amplifying circuit, the second-stage four-way amplifying circuit includes four second transistors Q2, each second transistor Q2 is used to implement one-way amplifying circuit, the third-stage eight-way amplifying circuit includes eight third transistors Q3, and each third transistor Q3 is used to implement one-way amplifying circuit;
the base electrode of each transistor corresponds to the input end of one path of amplifying circuit, the collector electrode corresponds to the output end of one path of amplifying circuit, and the emitting electrode is grounded.
In a second aspect, an embodiment of the present invention further provides a radio frequency front end architecture, including any one of the above-mentioned multi-path power combining radio frequency power amplifiers.
Has the advantages that: the multi-path power combined radio frequency power amplifier comprises a first-stage transformer matching network, a first-stage double-path amplifying circuit, a second-stage transformer matching network, a second-stage four-path amplifying circuit, a third-stage transformer matching network, a third-stage eight-path amplifying circuit and an output transformer matching network which are sequentially connected; through transformer matching networks of all levels, a single-ended radio frequency input signal RFin can be sequentially converted into two paths of differential signals, four paths of differential signals and eight paths of differential signals, and then the eight paths of differential signals are synthesized into one path of radio frequency output signal RFout to be output; and finally, eight paths of power of the matching network of the final output transformer are combined into one path of output, so that higher output power can be obtained while other indexes are not influenced and deteriorated.
Drawings
The technical solution and the advantages of the present invention will be apparent from the following detailed description of the embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 is a circuit diagram of a multi-channel power combining rf power amplifier according to an embodiment of the present invention;
fig. 2 is another circuit diagram of a multi-path power-combining rf power amplifier according to an embodiment of the present invention.
Detailed Description
Referring to the drawings, wherein like reference numbers refer to like elements, the principles of the present invention are illustrated as being implemented in a suitable computing environment. The following description is based on illustrated embodiments of the utility model and should not be taken as limiting the utility model with regard to other embodiments that are not detailed herein.
Referring to fig. 1, in the multi-path power combined rf power amplifier provided in the embodiment of the present invention, an rf power amplifier 100 includes a first-stage transformer matching network 11, a first-stage two-way amplifying circuit 12, a second-stage transformer matching network 13, a second-stage four-way amplifying circuit 14, a third-stage transformer matching network 15, a third-stage eight-way amplifying circuit 16, and an output transformer matching network 17, which are sequentially connected.
The input end of the first-stage transformer matching network 11 is connected to a radio frequency input signal RFin, and is configured to convert the radio frequency input signal RFin into two first differential signals, and output the two first differential signals to two input ends of the first-stage two-way amplifying circuit 12, respectively; the first-stage two-way amplifying circuit 12 amplifies the two first differential signals and outputs the amplified two first differential signals to two input ends of the second-stage transformer matching network 13, the second-stage transformer matching network 13 converts the two amplified first differential signals into four second differential signals and outputs the four second differential signals to four input ends of the second-stage four-way amplifying circuit 14, and the second-stage four-way amplifying circuit 14 amplifies the four second differential signals and outputs the amplified four second differential signals to four input ends of the third-stage transformer matching network 15.
The third-stage transformer matching network 15 converts the amplified four second differential signals into eight third differential signals, and outputs the eight third differential signals to eight input ends of the third-stage eight-circuit amplifying circuit 16 respectively; the third stage eight-path amplifying circuit 16 amplifies the eight paths of third differential signals and then outputs the amplified eight paths of third differential signals to eight input ends of the output transformer matching network 17, and the output transformer matching network 17 synthesizes the eight paths of third differential signals into one path of radio frequency output signal RFout and outputs the radio frequency output signal RFout.
In the embodiment, the transformer networks are adopted for matching in input matching, output matching and interstage matching, so that compared with the existing cascade connection of a plurality of matching topological structures, the layout area is effectively reduced, and the optimization effect of gain and output return loss is obviously improved; and the circuit is finally synthesized into one output by eight paths of power of the matching network 17 of the final output transformer, thereby obtaining higher output power without influencing and deteriorating other indexes.
Further, as shown in fig. 1, the first stage transformer matching network 11 includes a first transformer T1, a first inductor L1, and two first capacitors C1. One input end of the first transformer T1 is connected to a radio frequency input signal RFin as the input end of the first stage transformer matching network 11, and the other input end of the first transformer T1 is grounded through the first inductor L1; two output ends of the first transformer T1 are respectively used as two output ends of the first-stage transformer matching network 11, and are respectively connected with two input ends of the first-stage dual-path amplifying circuit through the two first capacitors C1.
The second-stage transformer matching network 12 includes two second transformers T2, two second inductors L2, and four second capacitors C2.
One input end of each second transformer T2 is used as one input end of the second-stage transformer matching network and is connected with one output end of the first-stage two-way amplifying circuit; the other input end of each second transformer T2 is grounded through one second inductor L2; each output end of each second transformer T2 is used as an output end of the second stage transformer matching network, and is connected with an input end of the second stage four-way amplifying circuit through a second capacitor C2.
More specifically, one input terminal of one of the second transformers T2 and one input terminal of the other second transformer T2 are respectively used as two input terminals of the second-stage transformer matching network 12 and are respectively connected to two output terminals of the first-stage dual-path amplifying circuit 11, and the other input terminal of one of the second transformers T2 and the other input terminal of the other second transformer T2 are respectively connected to the power supply voltage Vcc1 through two second inductors L2. Two output terminals of one of the second transformers T2, which are used as two output terminals of the second stage transformer matching network 12, are respectively connected to two input terminals of the second stage four-way amplifying circuit 13 through two second capacitors C2, and two output terminals of the other one of the second transformers T2, which are used as the other two output terminals of the second stage transformer matching network 12, are respectively connected to the other two input terminals of the second stage four-way amplifying circuit 13 through the other two second capacitors C2.
The third-stage transformer matching network 15 includes four third transformers T3, four third inductors L3, and eight third capacitors C3.
An input end of each third transformer T3 is used as an input end of the third-stage transformer matching network 15, and is connected with an output end of the second-stage four-way amplifying circuit 14; the other input terminal of each of the third transformers T3 is connected to a power supply voltage Vcc2 through one of the third inductors L3. Each output terminal of each third transformer T3 is connected to an input terminal of the third stage eight-way amplifying circuit 16 through a third capacitor C3 as an output terminal of the third stage transformer matching network 15. It is understood that each transformer has two input terminals and two output terminals, so that the four third transformers T3 have eight output terminals in total, and the eight output terminals of the four third transformers T3 are connected to the eight input terminals of the third stage eight-circuit amplifying circuit 16 in a one-to-one correspondence.
The output transformer matching network 17 includes four fourth transformers T4, two fifth transformers T5, a sixth transformer T6, four fourth inductors L4, four fifth inductors L5, two sixth inductors L6, two seventh inductors L7, and an eighth inductor L8.
Two input ends of each fourth transformer T4 are used as two input ends of the output transformer matching network 17, and are connected with two output ends of the third-stage eight-circuit amplifying circuit 16; an output terminal of each of the fourth transformers T4 is connected to an input terminal of a fifth transformer T5 through a fourth inductor L4, and another output terminal of each of the fourth transformers T4 is connected to ground through a fifth inductor L5. An output terminal of each of the fifth transformers T5 is connected to an input terminal of the sixth transformer T6 through a sixth inductor L6, and the other output terminal of each of the fifth transformers T5 is grounded through a seventh inductor L7. One output terminal of the sixth transformer T6 serves as the output terminal of the output transformer matching network 17 for outputting the rf output signal RFout, and the other output terminal of the sixth transformer T6 is grounded through the eighth inductor L8.
The first-stage two-way amplification circuit 12 includes two first transistors Q1, each first transistor Q1 is used to implement one-way amplification circuit, the second-stage four-way amplification circuit 14 includes four second transistors Q2, each second transistor Q2 is used to implement one-way amplification circuit, the third-stage eight-way amplification circuit 16 includes eight third transistors Q3, and each third transistor Q3 is used to implement one-way amplification circuit. The base electrode of each transistor corresponds to the input end of one path of amplifying circuit, the collector electrode corresponds to the output end of one path of amplifying circuit, and the emitting electrode is grounded.
It is understood that the base of each transistor may also be connected to a bias circuit (bias) for providing a bias voltage, wherein the base of the first transistor Q1 is connected to the bias circuit bias1, the base of the second transistor Q2 is connected to the bias circuit bias2, and the base of the third transistor Q3 is connected to the bias circuit bias 3.
As shown in fig. 1, in the embodiment of the present invention, the two-way amplification circuit is implemented by using two first transistors Q1 in the first-stage two-way amplification circuit 12, in other embodiments, the number of the first transistors Q1 in each amplification circuit is not limited to one, and the one-way amplification circuit of the first-stage two-way amplification circuit 12 may be implemented by using a plurality of parallel first transistors Q1, where the plurality of first transistors Q1 are implemented in a manner that bases of a plurality of first transistors Q1 are connected in parallel, collectors of a plurality of first transistors Q1 are connected in parallel, and emitters of all first transistors Q1 are grounded. Similarly, in other real-time modes, each of the second stage four-way amplifying circuits 14 may also be implemented by using a plurality of second transistors Q2 connected in parallel, and each of the third stage eight-way amplifying circuits 16 may also be implemented by using a plurality of third transistors Q3 connected in parallel.
In the radio frequency power amplifier, the matching of the first stage, the second stage, the third stage and the output stage is realized by adopting the transformer matching, so that the impedance value of the input end of the base electrode of the transistor is favorably increased, the difficulty of the inter-stage matching can be effectively reduced, and the impedance transformation is completed. In addition, through transformer matching, the base of each transistor does not need to be connected with a base resistor in series, so that the gain, the output power and the linearity of the output power of the circuit are greatly improved.
In addition, the radio frequency power amplifier is formed by adopting a three-stage amplifying circuit, which is beneficial to obtaining high gain. The base current of the transistor of each stage of amplifying circuit is about 100 muA, and the base current is an AB class static operating point, so that the power added efficiency of the whole radio frequency power amplifier can be increased. An input signal RFin passes through a first-stage transformer matching network 11, a single-end signal is converted into two first differential signals, and at the moment, a first-stage two-path amplifying circuit 12 outputs two paths; after passing through a second-stage transformer matching network 13, two first signals output by the first-stage two-way amplifying circuit 12 are changed into four second differential signals, the four second differential signals enter a second-stage four-way amplifying circuit 14, the four second differential signals are still output after being amplified by the second-stage four-way amplifying circuit 14, every two first differential signals are differential signals, the eight third differential signals are converted from the four second differential signals through a third-stage transformer matching network 15 and are input into a third-stage eight-way amplifying circuit 16, and every two eighth third differential signals are differential signals; the output signals of the third stage eight amplifying circuit are finally combined into four paths by the output transformer matching network 17, then combined into two paths by the four paths, and finally combined into one signal to be output. Therefore, the circuit structure of the embodiment can well complete interstage matching, optimize input return loss and gain, and greatly improve output power.
Referring to fig. 2, another embodiment of a multi-path power combining rf power amplifier according to an embodiment of the present invention is different from the embodiment shown in fig. 1 in that the structure of an output transformer matching network is different, in the embodiment shown in fig. 1, eight paths are combined into four paths, four paths are combined into two paths, and finally one path of signal is combined for output, and in the embodiment, eight paths are combined into four paths, and four paths are combined into one path of signal for output.
More specifically, the output transformer matching network 17 includes four seventh transformers T7, an eighth transformer T8, four ninth inductors L9, and a tenth inductor L10.
Two input ends of each seventh transformer T7 are used as two input ends of the output transformer matching network 17, and are connected with two output ends of the third stage eight-circuit amplifying circuit 16; wherein one output terminal of two of the seventh transformers T7 is connected and the connection node is connected with one input terminal of the eighth transformer T8, and the other output terminal of two of the seventh transformers T7 is grounded through one of the ninth inductors L9; one output terminals of the other two seventh transformers T7 are connected, and the connection node is connected to the other input terminal of the eighth transformer T8, and the other output terminals of the other two seventh transformers T7 are grounded through one ninth inductor L9; one output terminal of the eighth transformer T8 serves as the output terminal of the output transformer matching network for outputting the rf output signal RFout, and the other output terminal of the eighth transformer T8 is grounded through the tenth inductor L10.
An embodiment of the present invention further provides a radio frequency front end architecture, where the radio frequency front end architecture includes the multi-path power-combined radio frequency power amplifier described in any of the above embodiments.
The rf power amplifier and the rf front-end architecture for multi-path power synthesis provided by the embodiments of the present invention are described in detail above, and a specific example is applied in the present disclosure to explain the principle and the implementation of the present invention, and the description of the above embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (8)
1. A radio frequency power amplifier with multi-path power synthesis is characterized by comprising a first-stage transformer matching network, a first-stage double-path amplifying circuit, a second-stage transformer matching network, a second-stage four-path amplifying circuit, a third-stage transformer matching network, a third-stage eight-path amplifying circuit and an output transformer matching network which are sequentially connected;
the input end of the first-stage transformer matching network is connected with a radio-frequency input signal RFin and used for converting the radio-frequency input signal RFin into two paths of first differential signals and respectively outputting the two paths of first differential signals to two input ends of the first-stage two-path amplifying circuit; the first-stage two-way amplifying circuit amplifies the two first differential signals and outputs the two first differential signals to two input ends of the second-stage transformer matching network respectively, the second-stage transformer matching network converts the two amplified first differential signals into four second differential signals and outputs the four second differential signals to four input ends of the second-stage four-way amplifying circuit respectively, and the second-stage four-way amplifying circuit amplifies the four second differential signals and outputs the four second differential signals to four input ends of the third-stage transformer matching network respectively;
the third-stage transformer matching network converts the amplified four second differential signals into eight third differential signals and outputs the eight third differential signals to eight input ends of the third-stage eight-circuit amplifying circuit respectively; the third-stage eight-circuit amplifying circuit amplifies the eight third differential signals and then respectively outputs the eight third differential signals to eight input ends of the output transformer matching network, and the output transformer matching network synthesizes the eight third differential signals into one radio frequency output signal RFout and outputs the radio frequency output signal RFout.
2. The multi-path power combining rf power amplifier of claim 1, wherein the first stage transformer matching network comprises a first transformer T1, a first inductor L1, two first capacitors C1;
one input end of the first transformer T1 is connected to a radio frequency input signal RFin as an input end of the first stage transformer matching network, and the other input end of the first transformer T1 is grounded through the first inductor L1; two output ends of the first transformer T1 are respectively used as two output ends of the first-stage transformer matching network, and are respectively connected with two input ends of the first-stage double-path amplifying circuit through the two first capacitors C1.
3. The multi-path power-combined radio frequency power amplifier according to claim 1, wherein the second stage transformer matching network comprises two second transformers T2, two second inductors L2, and four second capacitors C2;
one input end of each second transformer T2 is used as one input end of the second-stage transformer matching network and is connected with one output end of the first-stage two-way amplifying circuit; the other input end of each second transformer T2 is grounded through one second inductor L2;
each output end of each second transformer T2 is used as an output end of the second stage transformer matching network, and is connected with an input end of the second stage four-way amplifying circuit through a second capacitor C2.
4. The multi-path power-combined radio frequency power amplifier according to claim 1, wherein the third-stage transformer matching network comprises four third transformers T3, four third inductors L3, and eight third capacitors C3;
an input end of each third transformer T3 is used as an input end of the third-stage transformer matching network and is connected with an output end of the second-stage four-way amplifying circuit; the other input end of each third transformer T3 is connected with a power supply voltage Vcc2 through a third inductor L3;
each output end of each third transformer T3 is used as an output end of the third stage transformer matching network, and is connected with one input end of the third stage eight-circuit amplifying circuit through a third capacitor C3.
5. The multi-path power-combined radio frequency power amplifier according to claim 1, wherein the output transformer matching network comprises four fourth transformers T4, two fifth transformers T5, one sixth transformer T6, four fourth inductors L4, four fifth inductors L5, two sixth inductors L6, two seventh inductors L7, and one eighth inductor L8;
two input ends of each fourth transformer T4 are used as two input ends of the output transformer matching network and are connected with two output ends of the third-stage eight-circuit amplifying circuit; one output terminal of each of the fourth transformers T4 is connected to one input terminal of one of the fifth transformers T5 through one of the fourth inductors L4, and the other output terminal of each of the fourth transformers T4 is grounded through one of the fifth inductors L5;
an output terminal of each of the fifth transformers T5 is connected to an input terminal of the sixth transformer T6 through a sixth inductor L6, and the other output terminal of each of the fifth transformers T5 is grounded through a seventh inductor L7;
one output terminal of the sixth transformer T6 serves as the output terminal of the output transformer matching network for outputting the rf output signal RFout, and the other output terminal of the sixth transformer T6 is grounded through the eighth inductor L8.
6. The multi-path power-combined radio frequency power amplifier according to claim 1, wherein the output transformer matching network comprises four seventh transformers T7, an eighth transformer T8, four ninth inductors L9, and a tenth inductor L10;
two input ends of each seventh transformer T7 are used as two input ends of the output transformer matching network and are connected with two output ends of the third-stage eight-circuit amplifying circuit; wherein one output terminal of two of the seventh transformers T7 is connected and the connection node is connected with one input terminal of the eighth transformer T8, and the other output terminal of two of the seventh transformers T7 is grounded through one of the ninth inductors L9; one output terminals of the other two seventh transformers T7 are connected, and the connection node is connected to the other input terminal of the eighth transformer T8, and the other output terminals of the other two seventh transformers T7 are grounded through one ninth inductor L9; one output terminal of the eighth transformer T8 serves as the output terminal of the output transformer matching network for outputting the rf output signal RFout, and the other output terminal of the eighth transformer T8 is grounded through the tenth inductor L10.
7. The multi-path power-combined radio-frequency power amplifier according to claim 1, wherein the first-stage two-path amplifying circuit comprises two first transistors Q1, each first transistor Q1 is used for implementing one-path amplifying circuit, the second-stage four-path amplifying circuit comprises four second transistors Q2, each second transistor Q2 is used for implementing one-path amplifying circuit, the third-stage eight-path amplifying circuit comprises eight third transistors Q3, and each third transistor Q3 is used for implementing one-path amplifying circuit;
the base electrode of each transistor corresponds to the input end of one path of amplifying circuit, the collector electrode corresponds to the output end of one path of amplifying circuit, and the emitting electrode is grounded.
8. A radio frequency front end architecture comprising the multi-path power combining radio frequency power amplifier of any one of claims 1-7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN202122445263.1U CN215934820U (en) | 2021-10-11 | 2021-10-11 | Multi-path power combined radio frequency power amplifier and radio frequency front end architecture |
| PCT/CN2022/116460 WO2023061091A1 (en) | 2021-10-11 | 2022-09-01 | Radio frequency power amplifier for multi-path power synthesis and radio frequency front-end architecture |
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| CN202122445263.1U CN215934820U (en) | 2021-10-11 | 2021-10-11 | Multi-path power combined radio frequency power amplifier and radio frequency front end architecture |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023061091A1 (en) * | 2021-10-11 | 2023-04-20 | 深圳飞骧科技股份有限公司 | Radio frequency power amplifier for multi-path power synthesis and radio frequency front-end architecture |
| CN116915186A (en) * | 2023-06-09 | 2023-10-20 | 北京无线电测量研究所 | High-frequency high-power amplifier circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7369096B2 (en) * | 2003-10-10 | 2008-05-06 | Broadcom Corporation | Impedance matched passive radio frequency transmit/receive switch |
| CN107093988A (en) * | 2017-04-17 | 2017-08-25 | 武汉大学 | The controllable K-band power amplifier of a kind of 7 modal gain and power output |
| CN110798158A (en) * | 2019-09-20 | 2020-02-14 | 重庆桴之科科技发展有限公司 | Radio frequency power amplifier for communication of Internet of vehicles |
| JP2021145290A (en) * | 2020-03-13 | 2021-09-24 | 株式会社村田製作所 | High frequency module and communication device |
| CN112865720A (en) * | 2021-01-20 | 2021-05-28 | 电子科技大学 | X-band wide-pulse high-power internal matching power amplifier |
| CN215934820U (en) * | 2021-10-11 | 2022-03-01 | 深圳飞骧科技股份有限公司 | Multi-path power combined radio frequency power amplifier and radio frequency front end architecture |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023061091A1 (en) * | 2021-10-11 | 2023-04-20 | 深圳飞骧科技股份有限公司 | Radio frequency power amplifier for multi-path power synthesis and radio frequency front-end architecture |
| CN116915186A (en) * | 2023-06-09 | 2023-10-20 | 北京无线电测量研究所 | High-frequency high-power amplifier circuit |
| CN116915186B (en) * | 2023-06-09 | 2024-03-08 | 北京无线电测量研究所 | High-frequency high-power amplifier circuit |
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| Publication number | Publication date |
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| WO2023061091A1 (en) | 2023-04-20 |
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