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Microwave mixer

A mixer and microwave technology, applied in the field of radio communication, can solve the problems of not being widely used and expensive, and achieve the effect of reducing volume and improving availability

Inactive Publication Date: 2014-08-20
CHANGZHOU COLLEGE OF INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are analysis equipments on the market such as high-frequency spectrum analyzers and imported ultrashort wave receivers. Although they have advanced functions, they are expensive and have no possibility of wide application.

Method used

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Experimental program
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Embodiment 1

[0026] See Figure 1 to Figure 5 , the present invention has a filter bank circuit 1 and an intermediate frequency filter amplifier circuit 4; it also includes a microwave mixing circuit 2 and a local oscillator circuit 3; the filter bank circuit 1 includes a microwave band switching switch N1, a filter bank , Switch N4 and peripheral circuits. Described filter bank comprises band-pass filter LP1, LP2, LP3 and LP4, and amplifier N2 and N3; The input end of described band-pass filter LP1 is connected the output end of microwave band switching switch N1, the output end of band-pass filter LP1 The output end is connected to the input end of the band-pass filter LP2 through the amplifier N3; the input end of the band-pass filter LP3 is connected to the output end of the microwave band switching switch N1, and the output end of the band-pass filter LP3 is connected to the band-pass filter through the amplifier N2. Input to pass filter LP4. Wherein, the microwave band switching sw...

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PUM

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Abstract

The invention relates to a microwave mixer which comprises a filter bank circuit, a medium-frequency filter amplification circuit, a microwave mixer circuit and a local oscillation source circuit. The input end of the microwave mixer circuit is connected with the output end of the filter bank circuit and the output end of the local oscillation source circuit, and the output end of the microwave mixer circuit is connected with the input end of the medium-frequency filter amplification circuit. Medium-frequency output is made to be a frequency band, the subsequent modules are reasonably utilized for signal conversion, the purpose of miniaturization is achieved, the size of the microwave mixer is greatly reduced, reliability of receiving of microwave radio frequency signals is improved, and usability of the microwave mixer is improved.

Description

technical field [0001] The invention relates to a microwave mixer, which is mainly aimed at the application of ultra-miniature equipment. It is used for receiving, reconnaissance, demodulation, analysis and spectrum analysis of ultrashort wave / microwave radio signals, and belongs to the field of radio communication. Background technique [0002] Due to the advancement of radio communication technology and the development of ultrashort wave, microwave and other communication means, it has been widely used in the field of frequency management. Electromagnetic spectrum monitoring is an important means and basis for ensuring the safe and effective use of radio spectrum resources. With the continuous development of communication technologies such as short-distance wireless communication and cognitive radio, national security requirements such as anti-terrorism, stability maintenance, and information situation awareness, and public service requirements such as electromagnetic rad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03D7/16
Inventor 吴青萍周玉锋汪涵
Owner CHANGZHOU COLLEGE OF INFORMATION TECH
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