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Microwave frequency conversion power division circuit

A power division circuit and microwave frequency conversion technology, applied in the field of microwave frequency conversion, can solve problems such as large line loss and inconsistent matching of power amplifier components, and achieve the effects of easy analysis, clear thinking, and avoiding different lengths.

Inactive Publication Date: 2015-12-02
CHINA COMM TECHHUBEI CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0003] The invention provides a microwave frequency conversion power division circuit, which solves the technical problems of the existing microwave frequency conversion power division circuit that the line loss is relatively large and the matching of power amplification components is not uniform.

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  • Microwave frequency conversion power division circuit
  • Microwave frequency conversion power division circuit
  • Microwave frequency conversion power division circuit

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Embodiment Construction

[0018] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the implementation of the present invention. example, not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0019] Satellite-based systems are now increasingly used to transmit television programming. Typically, a geostationary satellite receives the ground signal and downlinks the signal to a ground antenna located within the satellite's coverage area. The ground antenna usually includes a parabolic antenna and an intermediate frequency low-noise module for amplifying, fi...

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Abstract

The invention discloses a microwave frequency conversion power division circuit, comprising a first intermediate frequency amplification circuit, a second intermediate frequency amplification circuit and a switching circuit. The first intermediate frequency amplification circuit is used for amplifying an intermediate frequency signal formed by processing a first polar signal in a first mixer circuit; the second intermediate frequency amplification circuit is used for amplifying an intermediate frequency signal formed by processing a second polar signal in a second mixer circuit; the switching circuit is respectively connected with the first intermediate frequency amplification circuit and the second intermediate frequency amplification circuit, and is used for switching to output the signals of needed frequency bands; the first intermediate frequency amplification circuit and the second intermediate frequency amplification circuit are designed symmetrically. According to the invention, full band receiving of Ku wave band is realized, the first intermediate frequency amplification circuit and the second intermediate frequency amplification circuit are designed symmetrically, dispersion points of power division of the circuit are reduced, length inconsistency of output signal lines of the circuit is avoided, power division line loss is reduced, matching and unification of power amplification elements is realized, moreover, the circuit is formed through simple layout and clear thinking, is convenient to analyze and has high reliability.

Description

technical field [0001] The invention relates to the technical field of microwave frequency conversion, in particular to a microwave frequency conversion power dividing circuit. Background technique [0002] With the rapid development of electronic technology, more and more manufacturers in the microwave communication industry use frequency converters to realize microwave signal processing. However, the design of the existing microwave frequency conversion power division circuit, especially the design of the intermediate frequency amplifier circuit, has an larger. Due to the different lengths of the output signal lines and the large number of signal dispersion points, the loss of the power distribution line is relatively large, and the matching of the power amplifier components is not uniform. Contents of the invention [0003] The invention provides a microwave frequency conversion power division circuit, which solves the technical problems of large line loss and non-unif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03D7/16
Inventor 詹宇昕何宏平
Owner CHINA COMM TECHHUBEI CO LTD
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