Efficient dual-band power amplifier based on harmonic control
A power amplifier and harmonic control technology, which is applied in the direction of high-frequency amplifiers, power amplifiers, dual-band/triple-band amplifiers, etc., can solve problems such as complexity and work efficiency deterioration, and achieve good control, efficiency, and efficiency.
Active Publication Date: 2020-04-07
TIANJIN UNIV MARINE TECH RES INST
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Problems solved by technology
[0011]
A high-efficiency dual-band power amplifier based on harmonic control, which overcomes the problem of deterioration of work efficiency caused by excessive circuit complexity and inaccurate harmonic impedance control in the prior art; on the premise of satisfying dual-band transmission, the circuit is effectively simplified structure, at the same time, the dual-band harmonic impedance is controlled, so as to achieve the purpose of improving the efficiency of the power amplifier
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[0022] In order to illustrate the technical solution of the present invention more clearly, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.
[0023] A high-efficiency dual-band power amplifier based on harmonic control provided by the present invention, its principle block diagram is as follows figure 1 As shown, among them, the transistor input terminal is composed of R-C stabilization circuit, dual-band gate DC bias circuit and dual-band input matching circuit; the transistor output terminal is composed of dual-band second harmonic adjustment circuit, dual-band second harmonic control circuit 1. A dual-band third harmonic adjustment circuit, a dual-band drain DC bias circuit with a harmonic control function and a dual-band output matching circuit.
[0024] figure 2 Shown is the circuit block...
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The invention discloses an efficient dual-band power amplifier based on harmonic control. A transistor source electrode is grounded, a grid electrode is connected with an RC stabilizing circuit, and adrain electrode is connected with a dual-band secondary harmonic adjusting circuit; the RC stabilizing circuit is connected with a dual-band input matching circuit and a dual-band gate DC bias circuit. The dual-band secondary adjusting circuit is connected with a dual-band secondary harmonic control circuit, a dual-band third harmonic adjusting circuit, a dual-band drain electrode direct-currentbiasing circuit with a harmonic control function and a dual-band output matching circuit. According to the invention, the problem of working efficiency deterioration caused by over-high circuit complexity and inaccurate harmonic impedance control in the prior art is solved; on the premise of meeting dual-band transmission, a circuit structure is effectively simplified, and meanwhile, the dual-bandharmonic impedance is controlled, so that the purpose of improving the efficiency of the power amplifier is achieved.
Description
technical field [0001] The invention belongs to the technical field of power amplifiers, in particular to a high-efficiency dual-band power amplifier based on harmonic control. Background technique [0002] With the further development of modern communication systems, ever-increasing frequency bands and operating modes place higher and higher requirements on the RF front-end. As the most critical and energy-consuming component in the RF front-end, the power amplifier also needs to have high efficiency and multi-mode and multi-band working capabilities. There are two main solutions for RF power amplifier technology: broadband power amplifier and multi-band power amplifier. [0003] Techniques such as continuous mode, wideband class-E and harmonic tuning offer the potential to design wideband high-efficiency power amplifiers. However, precise harmonic control methods are required to achieve these high-efficiency modes, which are not easy to implement across the entire design...
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Patent Timeline
Login to View More IPC IPC(8): H03F1/02H03F1/56H03F1/26H03F3/19H03F3/20
CPCH03F1/0211H03F1/56H03F1/26H03F3/19H03F3/20H03F2200/111H03F2200/451Y02D30/70
Inventor 马建国邹浩周绍华张蕾赵升杨自凯杨闯李旭光李昭张明哲
Owner TIANJIN UNIV MARINE TECH RES INST