Power amplifier and communication system
A technology of power amplifier and communication system, applied in the field of communication, can solve the problems of high power consumption of power amplifier and inability to meet green wireless communication, etc., and achieve the effect of increasing output power and reducing power consumption
Inactive Publication Date: 2018-12-07
GUANGDONG UNIV OF TECH
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Problems solved by technology
As an important part of the communication system, the working efficiency of the power amplifier will directly affect the energy consumption level of the entire communication system. A common power amplifier includes an input matching module, a first amplifier, an interstage matching module, a second amplifier, Output matching module, wherein the output matching module is used to suppress harmonics, but the output matching module in the prior art suppresses harmonics through the series connection of inductors and capacitors, and the series structure will generate a large current, so that the power consumption of the power amplifier High, unable to meet the requirements of green wireless communication
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Embodiment Construction
[0028] The core of the present invention is to provide a power amplifier that does not have large current, reduces the power consumption of the power amplifier while suppressing harmonics, and improves the output power. Another core of the present invention is to provide a communication system including the above-mentioned power amplifier.
[0029] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present inven...
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The invention discloses a power amplifier, comprising an input matching module, a first amplifier, an inter-stage matching module, a second amplifier and an output matching module, wherein the outputmatching module comprises a first modulation unit and a second modulation unit; in practical application, the output matching module provided by the invention suppresses harmonics by connecting a plurality of sub-modulation modules in series at second harmonic and then grounding, wherein a capacitor and an inductor in each sub-modulation module adopt a parallel structure, no large current exists,the power consumption of the power amplifier is reduced while suppressing the harmonics, the energy is collected to a collector of a power tube in the second amplifier through a second modulation module at the third harmonic, so that the output power of the second amplifier is improved, and the power consumption is further reduced. The invention further discloses a communication system having thesame advantageous effects as the above power amplifier.
Description
Technical field [0001] The present invention relates to the field of communication, in particular to a power amplifier and a communication system. Background technique [0002] The rapid development of wireless communication technology, especially the development of green wireless communication, has put forward higher and higher requirements for the performance indicators of the communication system. As an important part of the communication system, the working efficiency of the power amplifier will directly affect the energy consumption of the entire communication system. Common power amplifiers include input matching module, first amplifier, inter-stage matching module, second amplifier, Output matching module, where the output matching module is used to suppress harmonics, but the output matching module in the prior art suppresses harmonics by connecting inductors and capacitors in series, and the series structure will generate a large current, which makes the power amplifier ...
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Patent Timeline
Login to View More IPC IPC(8): H03F1/02H03F3/24H03F3/21H03F3/68H04B1/04
CPCH03F1/0205H03F3/245H03F3/68H04B1/04H04B2001/0408H04B2001/0491
Inventor 蓝焕青张志浩章国豪李铖
Owner GUANGDONG UNIV OF TECH