Millimeter wave receiver

A receiver and millimeter wave technology, applied in the millimeter wave field, can solve the problems of adding mixers, filters and amplifiers, more combined frequency interference, and deteriorating received signal quality, so as to suppress combined interference, high receiving sensitivity, The effect of simple structure

Pending Publication Date: 2019-01-25
ANHUI XINHE DEFENSE TECH JOINT CO LTD
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  • Abstract
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Problems solved by technology

[0003] However, the main technical difficulty of the W-band millimeter wave receiver is that the frequency of this band is relatively high, and the combined frequency has more interference
Especially image interference, the interference signal located at the image frequency of the RF signal relative to the local oscillator frequency will be down-converted to the intermediate frequency band through the mixer, and cannot be filtered out by the channel selection filter, thus seriously deteriorating the quality of the received signal
Image interference has been a key factor restricting the performance of W-band millimeter-wave receivers for a long time, and the existing method of suppressing image interference through multi-stage frequency conversion needs to increase the number of mixers, filters and amplifiers, which brings costs and a significant increase in power consumption

Method used

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  • Millimeter wave receiver
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Embodiment Construction

[0027] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms, and should not be construed as being limited to the embodiments set forth herein; on the contrary, these embodiments are provided so that this disclosure will be comprehensive and complete, and fully convey the concept of the example embodiments To those skilled in the art. In the figures, the same reference numerals denote the same or similar parts, and thus their repeated description will be omitted.

[0028] Furthermore, the described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to give a sufficient understanding of the embodiments of the present disclosure. However, those skilled in the art will realize that the technical solutions of the present disclosure can be practiced wit...

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Abstract

A millimeter wave receiver includes a receiver circuit and a metal shield box, wherein the receiver circuit includes a millimeter wave antenna; a waveguide microstrip transition device connected withan output end of a millimeter wave antenna, wherein the output end of the waveguide microstrip transition device is connected with an input end of a cascaded radio frequency amplifier; the output endof the cascaded radio frequency amplifier is connected with the input end of the mixer, the output end of the mixer is connected with the input end of the band pass filter, the output end of the bandpass filter is connected with the output end of the intermediate frequency amplifier, the output end of the intermediate frequency amplifier is connected with the input end of the fin line filter, andthe output end of the fin line filter is connected with the input end of the video amplifier. The invention has the advantages of simple structure, low cost and power consumption, strong anti-interference ability, long detection distance and high receiving sensitivity.

Description

Technical field [0001] The present disclosure relates to the technical field of millimeter waves, and in particular to a millimeter wave receiver. Background technique [0002] The receiver is an important part of communication, radar, aerospace, and remote sensing detection systems. The W-band millimeter wave receiver is used to receive millimeter wave signals in the frequency range of 80 to 100 GHZ, and has been widely used in the military field in recent years. Among the traditional W-band millimeter wave receivers, the super-heterodyne structure millimeter wave receiver is the most widely used because of its simple structure, flexible design and high stability. Its structure is mainly composed of radio frequency amplifiers, mixers, band-pass filters and intermediate frequency amplifiers. Its working principle is to suppress interference through one or more stages of amplification, frequency conversion and filtering, so as to eliminate complex electromagnetic spectrum signals....

Claims

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Application Information

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IPC IPC(8): H04B1/08H04B1/10H04B1/12H04B1/16
CPCH04B1/08H04B1/10H04B1/12H04B1/16
Inventor 丁治国李东风杨春旺张晓婷余红苗钱正军姚家红张安稳
Owner ANHUI XINHE DEFENSE TECH JOINT CO LTD
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