A dual-frequency duplex full-simultaneous single-pulse self-tracking satellite feed source

Abstract

A dual-frequency duplex full-simultaneous single-pulse self-tracking satellite feed source, which has the functions of Ku-band uplink transmission, Ku-band downlink single-pulse self-tracking, Ka-band uplink transmission, and Ka-band downlink single-pulse self-tracking for satellites. The feed source of the present invention adopts a dual-band speaker (1), a Ku-band TE21-mode coupler (2), a Ka-band TE21-mode coupler (3), a six-port lantern-type wave splitter (4), and a Ku-band orthogonal mode coupler (5), Ka frequency band circular polarizer (6); sequentially separate Ku frequency band differential mode, Ka frequency band differential mode, ku frequency band and mode, Ka frequency band and mode, and then utilize the beam forming network to realize the synthesis of the sum difference beam, satisfying The demand for dual-frequency, full-simultaneous single-pulse self-tracking through the antenna in motion.

Description

technical field [0001] The invention relates to a dual-frequency duplex full-simultaneous single-pulse self-tracking satellite communication feed source, which is applied in a satellite communication antenna feed system of a reflective surface in motion, and belongs to the technical field of antennas. Background technique [0002] In the prior art, the antenna feeder system for satellite communication in motion, the feed source adopts Ku / Ka dual-frequency duplex program tracking or Ku / Ka dual-frequency duplex time-division switching single-pulse self-tracking, the type of equipment required And the quantity is large, the overall complexity of the equipment is high, and it is prone to failure; but in effect, only Ku-band monopulse tracking or Ka-band monopulse tracking can be realized, and the self-tracking channel must be switched through the switch network, and it does not have the ability to perform simultaneous tracking. Ku-band and Ka-band simultaneous monopulse tracking...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the feeder system of satellite communication reflector in motion adopts Ku / Ka dual-frequency duplex program tracking or Ku / Ka dual-frequency duplex time-sharing switching monopulse self-tracking as the feed source, and the types of equipment required And the quantity is large, the overall complexity of the equipment is high, and it is prone to failure; but in effect, only Ku-band monopulse tracking or Ka-band monopulse tracking can be realized, and the self-tracking channel must be switched through the switch network, and it is not possible to perform simultaneous tracking. Simultaneous monopulse tracking capability of Ku-band and Ka-band

In addition, since Ku-band monopulse tracking or Ka-band monopulse tracking works independently, when the working Ku or Ka self-tracking channel fails to track, the other channel cannot complete the real-time tracking task, so the entire device easy to lose target

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