Broadband differential radio frequency power amplifier with second harmonic suppression
A second harmonic and radio frequency power technology, applied in the direction of high-frequency amplifiers, improved amplifiers to improve efficiency, etc., can solve the problems of reducing linearity, working efficiency and output capacity, etc., to improve efficiency and linearity, and improve working bandwidth , the effect of reducing the impact
Active Publication Date: 2021-06-25
GUANGDONG UNIV OF TECH
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[0007] The embodiment of the present invention provides a broadband differential radio frequency power amplifier with second harmonic suppression, which is used to solve the existing second harmonic in the existing power amplifier, which will The technical problem of reducing its linearity, operating efficiency and output capability, the broadband differential RF power amplifier with second harmonic suppression can improve the bandwidth of the RF power amplifier
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Embodiment 1
[0041] figure 1 It is a frame diagram of a broadband differential radio frequency power amplifier with second harmonic suppression described in an embodiment of the present invention.
[0042] Such as figure 1 As shown, the embodiment of the present invention provides a broadband differential radio frequency power amplifier with second harmonic suppression, including a broadband input balun 10, a driving amplifier 20 connected to the broadband input balun 10, a T connected to the driving amplifier 20 T-shaped matching network 30 , an output amplifier 40 connected to the T-shaped matching network 30 , a suppressing harmonic matching network 50 connected to the output amplifier 40 , and a broadband output balun 60 connected to the suppressing harmonic matching network 50 .
[0043] In the embodiment of the present invention, the broadband input balun 10 is mainly used to convert one single-ended signal input to the radio frequency power amplifier into two differential signal ou...
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The invention relates to a broadband differential radio frequency power amplifier with second harmonic suppression. The broadband differential radio frequency power amplifier comprises a broadband input balun, a driving amplifier, a T-shaped matching network, an output amplifier, a harmonic suppression matching network and a broadband output balun. According to the broadband differential radio frequency power amplifier with the second harmonic suppression function, one path of single-end signals are converted into two paths of differential output signals through the broadband input balun, and after the driving amplifier, the T-shaped matching network and the output amplifier are adopted for improving the output capacity of power amplification power of the output signals, the harmonic suppression matching network is adopted to carry out secondary harmonic processing on the output signal, so that the influence of the secondary harmonic on the overall performance of the radio frequency power amplifier is better reduced, and the performance indexes such as efficiency and linearity are improved; two paths of output signals are combined into one path of signal output through the broadband output balun; according to the broadband differential radio frequency power amplifier, the combination of the harmonic suppression network and the broadband balun is realized, and the working bandwidth of the power amplifier is improved.
Description
technical field [0001] The invention relates to the technical field of power amplifiers, in particular to a broadband differential radio frequency power amplifier with second harmonic suppression. Background technique [0002] Wireless communication is in an era of rapid development. Various consumer electronics products have added wireless communication functions, and many cities are also building wireless cities. In terms of mobile communication, due to the increasing requirements for communication speed, communication standards have been improving, and the fifth-generation mobile communication (5G) technology has gradually entered people's lives, which can quickly transmit high-quality video, audio, image and other data. The information radio frequency transceiver is one of the most important modules in the modern wireless communication system, and the power amplifier located at the end of the transmitter is the core component of the wireless transceiver, and its performa...
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IPC IPC(8): H03F1/02H03F3/189
CPCH03F1/02H03F3/189
Inventor 梁钊铭章国豪孙博
Owner GUANGDONG UNIV OF TECH