F-type power amplifier based on optimized output matching structure and design method thereof
A power amplifier and output matching technology, applied in the field of radio frequency communication, can solve the problems of increasing the structure size and complexity of the power amplifier, and achieve the effects of being beneficial to multi-stage power amplifier circuits and integrated power amplifier circuits, simplifying the structure, and facilitating realization.
Pending Publication Date: 2021-08-06
HANGZHOU DIANZI UNIV FUYANG ELECTRONIC INFORMATION RES INST CO LTD +1
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Problems solved by technology
[0003] see figure 1 , after compensating the parasitic parameters of the transistor, the output matching network of the traditional class F power amplifier first performs the second harmonic control and the third harmonic control, then connects the fundamental wave matching circuit, and then connects to the terminal load, the structure is complex and increases The structure size of the power amplifier
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[0034] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.
[0035]Aiming at the problems existing in the prior art, the applicant conducted in-depth research on the structure of the traditional Class F power amplifier in the prior art, and the applicant found through theoretical analysis that the output matching network of the traditional Class F power amplifier in the prior art is The second harmonic and third harmonic control are performed first, and then the fundamental wave impedance matching is performed. The structure is complex and the size is large, which is not conducive to the realization of cascading and amplifier integration with multi-stage amplifiers.
[0036] Aiming at the problems caused by the traditional output matching network, the applicant proposed a class F pow...
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The invention discloses a F-type power amplifier based on an optimized output matching structure and a design method thereof. The F-type power amplifier at least comprises a transistor and an output matching network, the output matching network comprises a bias circuit, a fundamental wave matching circuit, a second harmonic control circuit and a third harmonic control circuit; wherein the fundamental wave matching circuit is of a T-shaped matching structure and comprises a third harmonic control circuit and a first microstrip line TL1; the first microstrip line TL1 is a common part of the fundamental wave matching circuit, the third harmonic control circuit and the second harmonic control circuit. Compared with the prior art, the optimized output matching network provided by the invention simplifies the structure of the output network of the class-F power amplifier, realizes the same broadband and high efficiency, reduces the size, and is beneficial to the realization of a multi-stage power amplification circuit and an integrated power amplification circuit due to the simple structure.
Description
technical field [0001] The invention relates to the technical field of radio frequency communication, in particular to a Class F power amplifier based on an optimized output matching structure and a design method thereof. Background technique [0002] The RF power amplifier is one of the most important components of the RF transmission front end. With the rapid development of wireless communication technology, there are requirements for communication systems with higher efficiency, smaller size, lower delay, higher speed and better linearity. As the frequency band of the communication frequency becomes higher and higher, the size of the power amplifier is correspondingly reduced, and it is more and more difficult to design a power amplifier with a complex structure. Therefore, how to simplify the structure of the power amplifier while maintaining or even improving the output power and efficiency of the power amplifier has become one of the research hotspots in the academic ...
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Login to View More IPC IPC(8): H03H7/38H03F3/19H03F3/21H03F3/24
CPCH03F3/19H03F3/21H03F3/24H03F2200/387H03F2200/451H03H7/38
Inventor 程知群秦泽王宋业黄谢镔简叶龙刘国华
Owner HANGZHOU DIANZI UNIV FUYANG ELECTRONIC INFORMATION RES INST CO LTD