Microwave photon technology-based frequency converter for geostationary orbit satellite

A technology of geostationary orbit and microwave photons, which is applied in the field of up/down frequency conversion in satellite communication, can solve the problems that cannot meet the needs of development, etc., and achieve the effect of simple structure, flexible adjustment and high degree of sideband suppression

Inactive Publication Date: 2018-10-02
SHANGHAI SATELLITE ENG INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the inverters on the satellites in the geostationary orbit still use the secondary frequency conversion technology, which can no longer meet the needs of development.

Method used

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  • Microwave photon technology-based frequency converter for geostationary orbit satellite
  • Microwave photon technology-based frequency converter for geostationary orbit satellite
  • Microwave photon technology-based frequency converter for geostationary orbit satellite

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Embodiment Construction

[0043] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0044] see figure 1, a frequency converter based on microwave photonics technology applied to satellites in geostationary orbit, including: laser source 1 (LD), polarization multiplexing-dual parallel Mach-Zehnder modulator 3 (PM-DPMZM), photodiode 4 (PD ), DC source (DC), first bridge 7, second bridge 8, first 2*2 switch 9, second 2*2 switch 10, polarization controller 2 (PC), local oscillator signal 5 (LO , Local oscillator signal) and intermediate signal 6 (IF, Intermediate frequency signal).

[00...

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Abstract

The invention discloses a microwave photon technology-based frequency converter for a geostationary orbit satellite. The frequency converter comprises a laser source (LD), a polarization multiplexing-dual parallel Mach-Zehnder modulator (PM-DPMZM), electric bridges, 2*2 switches, a polarization controller (PC), a photodiode (PD), a direct-current source (DC), local oscillator signals (LO) and intermediate-frequency signals (IF). The frequency conversion performance of the frequency converter applied to the geostationary orbit satellite can be improved; the switching of an up-conversion function and a down-conversion function can be completed through changing the states of the 2*2 switches. The frequency converter has the advantages of high reliability, simple structure and low cost.

Description

technical field [0001] The invention relates to the technical field of frequency up / down conversion in satellite communication, in particular to a frequency converter based on microwave photon technology applied to satellites in geostationary orbit. Background technique [0002] The satellite receives the uplink signal transmitted from the ground equipment, and performs relay forwarding or transmission, so as to realize the communication demand in a large area. In the communication work process, the frequency converter is the key satellite load, and its performance determines the communication quality. [0003] The Chinese invention patent "signal frequency conversion transmitter" with the application number CN201110133918 discloses an electronic circuit, especially a frequency conversion circuit used in a Ku-band satellite communication system. Signal frequency conversion transmitter, including: first filter (BPF1), second filter (BPF2), third filter (BPF3), fourth filter ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/118H04B10/516H04B10/548H04B7/185
CPCH04B10/118H04B7/18515H04B10/516H04B10/5165H04B10/548
Inventor 袁牧野徐志康刘波王天亮胡永勤洪赞扬何春
Owner SHANGHAI SATELLITE ENG INST
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