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A communication satellite transponder

A communication satellite and transponder technology, which is applied in the field of satellite signal transmission, can solve the problems of large volume and heavy weight of transponders, and achieve the effect of small size, light weight and more space usage

Active Publication Date: 2021-01-22
BEIJING INST OF RADIO MEASUREMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The embodiment of this application proposes a communication satellite transponder for miniaturized communication satellites to solve the problems of large volume and heavy weight of traditional transponders

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  • A communication satellite transponder
  • A communication satellite transponder

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Embodiment Construction

[0042] In order to make the technical solutions and advantages of the present application clearer, the exemplary embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all implementations. Exhaustive list of examples. And in the case of no conflict, the embodiments in this description and the features in the embodiments can be combined with each other.

[0043] The core idea of ​​this scheme is to down-convert the input Ka-band signal with a bandwidth of 100MHz to an intermediate frequency of 200 to 300MHz, and then use the SAW filter 10 with a high rectangular coefficient to complete the frequency band division, divide it into three intermediate frequency signals with a bandwidth of 30MHz, and then Frequency conversion amplifies to Ku band signal output.

[0044] Such as figure 1 As shown, a communicat...

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Abstract

The embodiment of the invention discloses a communication satellite repeater. The repeater comprises a first conversion unit which carries out frequency conversion processing on Ka-wave band signals based on a first local oscillator signal and a second local oscillator signal; a power divider unit which divides intermediate signals into multiway intermediate signals according to equal power; and aplurality of second conversion units which process the multiway intermediate signals based on a third local oscillator signal and a fourth local oscillator signal, thereby obtaining the Ka-band signals, wherein channels employed by the second conversion units are different. The technical scheme provided by the invention is small in size and light in weight; the weight of a satellite can be reduced; and much application space can be saved for the satellite.

Description

technical field [0001] The application relates to the field of satellite signal transmission, in particular to a communication satellite transponder for miniaturized communication satellites. Background technique [0002] The transponder is the main component of the payload of the communication satellite. It is responsible for processing and amplifying the communication signal received by the antenna, and then sending it back to the antenna for external radiation. Traditional communication satellite transponders are mainly composed of amplifiers, input multiplexers, mixers, etc. Among them, the input multiplexers are mostly implemented by waveguide cavity filters, resulting in a large transponder, which is not conducive to the microwave circuit integration of the transponder. The problem becomes more prominent when the number of channels increases. Contents of the invention [0003] The embodiment of the present application proposes a communication satellite transponder f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185
CPCH04B7/18515
Inventor 崔彦东肖鹏飞
Owner BEIJING INST OF RADIO MEASUREMENT