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High-efficiency broadband power amplifier and radio frequency transceiver

A technology for power amplifiers and power amplification, which is applied in power amplifiers, amplifiers, amplifier input/output impedance improvements, etc., to achieve simple structure, good harmonic suppression, and good harmonic suppression effects

Pending Publication Date: 2020-03-17
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the impedance matching of the entire working frequency band is only based on the impedance of one frequency point, so the bandwidth can only be limited to one octave

Method used

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  • High-efficiency broadband power amplifier and radio frequency transceiver
  • High-efficiency broadband power amplifier and radio frequency transceiver
  • High-efficiency broadband power amplifier and radio frequency transceiver

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Experimental program
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Embodiment

[0027] Such as figure 1 and figure 2 As shown, a high-efficiency broadband power amplifier includes an input port, a broadband input matching circuit, a broadband DC bias circuit, a power amplifier transistor, a low-pass filter network, and an auxiliary matching transmission line. The broadband DC bias circuit includes an input broadband DC bias circuit Bias circuit and output broadband DC bias circuit.

[0028] The input port is connected to one end of the broadband input matching circuit, and the other end is connected to the gate of the power amplifier transistor, and the drain of the power amplifier transistor is respectively connected to one end of the output broadband DC bias circuit and the low-pass filter network, The other end of the low-pass filter network, the auxiliary matching transmission line and the output load are connected in sequence, the input broadband DC bias circuit is connected to the broadband input matching circuit, and the source of the power ampli...

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Abstract

The invention discloses a high-efficiency broadband power amplifier and a radio frequency transceiver. The high-efficiency broadband power amplifier comprises an input port, a broadband input matchingcircuit, an input broadband direct-current bias circuit, a power amplification transistor, an output broadband direct-current bias circuit, a low-pass filtering network, an auxiliary matching transmission line and an output load, the input port is connected with one end of the broadband input matching circuit. The other end is connected with the grid electrode of the power amplification transistor; the drain electrode of the power amplification transistor is connected with one end of the output broadband DC bias circuit and one end of the low-pass filtering network. The other end of the low-pass filtering network, the auxiliary matching transmission line and the output load are connected in sequence, the input broadband direct-current biasing circuit is connected with the broadband inputmatching circuit, and a source electrode of the power amplification transistor is grounded. The invention can work in a very wide frequency band range, is suitable for various communication frequencybands, is small in size, is high in efficiency, and is suitable for a plurality of radio frequency systems.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a high-efficiency broadband power amplifier and a radio frequency transceiver. Background technique [0002] With the deployment of the current 4G-LTE system and the promotion of the 5G system in the future, the next-generation wireless communication system needs to work in multiple communication standards and communication frequency bands to cope with different application scenarios. A communication system that supports multi-mode and multi-frequency work can also greatly save the cost of research and development, replacement and maintenance of a large number of equipment for enterprises. The power amplifier is a key component in the radio frequency transceiver. High efficiency is an important indicator of the power amplifier, because it accounts for 40%-60% of the energy consumption of the base station. The improvement of its efficiency will greatly prolong the service lif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F3/24H03F1/56H04B1/40
CPCH03F1/56H03F3/245H04B1/40
Inventor 章秀银陈航徐金旭孔志华
Owner SOUTH CHINA UNIV OF TECH
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