Satellite-borne S-band duplexer

A duplexer and frequency band technology, applied in the field of navigation, can solve the problems that the S-band duplexer and multiplexer cannot meet the requirements of satellites, and achieve improved power tolerance, large power capacity under low air pressure, and improved reliability Effect

Inactive Publication Date: 2016-08-24
BEIJING INST OF SPACECRAFT SYST ENG
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Problems solved by technology

[0005] In order to solve the problems existing in the prior art, and the existing S-band duplexers and multiplexers cannot meet the satellite requirements, the present invention proposes a space-borne S-band high-power low-pressure discharge duplexer, which uses high The dielectric constant ceramic dielectric is fully filled with wave...

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Embodiment Construction

[0028] It should be understood that the spaceborne S-band high-power low-pressure discharge duplexer of the present invention includes ceramic dielectric filters, tuning screws, flexible cables, tuning structural parts, special screws, SMA connectors, and metal casings.

[0029] In the present invention, the duplexer is an all-dielectric waveguide filter structure, and two H-plane waveguide ladder coupling filters are used to form a channel filter. In order to save volume and size, a folded filter structure is adopted. The structure of the combiner of the two channels adopts a T-shaped connector, and the matching between the two-channel filters is realized by adjusting the length of the flexible cable. This method is small in size, simple in structure, and has a large power capacity under low air pressure.

[0030] The input and output coupling method of the all-dielectric waveguide filter adopts the short-circuit inductance method. The two-channel dielectric waveguide filter ...

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Abstract

The invention provides a satellite-borne S-band duplexer which adopts an all-dielectric waveguide filter structure to realize high-power low-voltage discharge resistance. The satellite-borne S-band duplexer comprises tuning screws, a flexible cable, tuning structural members, an SMA connector, a metal shell, special screws and an all-dielectric waveguide filter structure, wherein the all-dielectric waveguide filter structure adopts a channel filter which is composed of two H-plane waveguide stepped coupling and filtering channels, and each H-plane waveguide stepped coupling and filtering channel adopts a ceramic dielectric waveguide filter. Therefore, the satellite-borne S-band duplexer provided by the invention is small in size, simple in structure and high in low pressure power capacity, and does not have a low pressure discharge phenomenon. Meanwhile, the power endurance capacity of products is improved, the mechanics environment resisting performance of a ceramic dielectric is increased, an integrated structure design is realized, the mechanics environment resisting performance is enhanced, and the reliability of the duplexer is improved.

Description

technical field [0001] The invention belongs to the field of navigation, and in particular relates to a space-borne S-band duplexer which adopts an all-dielectric waveguide filter structure to realize high-power low-pressure discharge resistance. Background technique [0002] The duplexer is an important part of the satellite measurement and control subsystem. It transmits the downlink measurement and control signal sent by the measurement and control fixed radio to the combiner / splitter (measurement and control antenna), and at the same time transmits the uplink measurement and control signal sent by the combiner / splitter (measurement and control antenna) Transmission to non-coherent spread spectrum transponders (emergency transponders). The duplexer works in the whole process of the satellite entering orbit and after entering orbit. In the field of aerospace, due to the limited space of the aircraft, there is an urgent need for small and light equipment. Therefore, satell...

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Application Information

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IPC IPC(8): H01P1/20
Inventor 王晓天高晓艳董楠俞笔奇李鸿斌韩运忠田立松彭国勋
Owner BEIJING INST OF SPACECRAFT SYST ENG
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