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Ka-band multi-channel down conversion device

A frequency conversion device and multi-channel technology, applied in the direction of multi-frequency modulation conversion, etc., can solve the problems of complex switching, low reliability, poor stability, etc., and achieve the effect of improving sensitivity, improving reliability, and reducing spurious

Inactive Publication Date: 2018-12-14
10TH RES INST OF CETC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a Ka-band multi-channel down-conversion device, which is used to solve the problems of poor stability, low reliability, low sensitivity, complex switching and many spurs in the existing Ka-band down-converter

Method used

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Embodiment Construction

[0016] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments; it should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the invention.

[0017] In order to illustrate the technical solution of the present invention, the following examples are used to illustrate.

[0018] refer to figure 1 . In the embodiments described below, the Ka-band multi-channel down-conversion device includes: a switching unit and a signal channel unit T. The switching unit adopts a multi-level switch to switch the signal channel unit T. Each signal channel unit T is electrically connected to a mixer, and each mixer is electrically connected to a cavity filter. The signal channel unit T is selected by clicking the touch screen. The upper switc...

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Abstract

The invention discloses a Ka waveband multi-channel down-conversion device. The device comprises a switching unit and signal channel units; the switching unit switches the signal channel units in adoption of a multi-level switch; each signal channel unit is electrically connected with a mixer; each mixer is electrically connected with a cavity filter; with respect to the signal channel units, corresponding working channels are communicated through selecting and clicking switch display symbols on a touch display screen. According to the device provided by the invention, the cavity filter connected with each mixer timely filters the spurious signals generated in mixing; the spurious signals are prevented from participating in follow-up mixing to generate more spurious signals; the spurious suppression degree of the link is greatly improved; and the problems in the prior art that the Ka waveband down converter is low in stability, reliability and sensitivity, complex in switching and many in spurious signal.

Description

technical field [0001] The invention relates to a Ka-band multi-channel down converter. Background technique [0002] In modern economic and social life, satellite communication occupies an important position in the field of communication. With breakthroughs in satellite direct broadcast to home and direct access to the Internet, the demand for broadband communication satellites in this field is on the rise. In modern communication systems, signal encoding and decoding, modulation and demodulation, filtering and other functions are generally carried out at lower frequencies, so the down-conversion component is a key component in the system, and its performance directly affects the performance of the whole machine. index. [0003] With the development of aerospace measurement and control and satellite communication, frequency conversion components are used more and more widely, but the traditional Ka-band down-conversion multi-channel module has low sensitivity and many spu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03D7/16
CPCH03D7/16
Inventor 赵亚妮
Owner 10TH RES INST OF CETC
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