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Ku/Ka two-waveband transmitting-receiving share feed source

A shared transceiver and dual-band technology, which can be applied to devices, waveguide horns, and waveguide-type devices that enable antennas to work in different bands at the same time. achieve good isolation

Inactive Publication Date: 2012-07-25
BEIJING TIANGONG KAIZHENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In the Chinese patent No.102136634A submitted by Yang Shiwen et al. on January 12, 2011, a Ku / Ka frequency band circularly polarized integrated transceiver and feed antenna is disclosed, but it still has the following disadvantages: 1. The overall size is too large ; 2. Using SMA probes to feed power increases the loss; 3. Data such as VSWR and axial ratio have not reached the advanced level at home and abroad

Method used

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Embodiment Construction

[0042] The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of exemplary embodiments of the present invention. It includes various details to facilitate understanding and they should be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0043] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[0044] figure 1 It is a schematic diagram of the outline structure of the Ku / Ka dual-band transceiver shared feed source according to the present invention. Since the present invention realizes the conformal integration of the transmitting and receiving functions of th...

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Abstract

The invention provides a Ku / Ka two-waveband transmitting-receiving share feed source, which comprises a Ku waveband transmitting-receiving system and a Ka waveband transmitting-receiving system, wherein the Ku waveband transmitting-receiving system comprises a Ku radiation end, a stepped choke ring, a coaxial connecting piece, a Ku waveband coaxial orthomode coupler and a Ku waveband receiving-end filter which are connected in sequence; the Ka waveband transmitting-receiving system and the Ku waveband transmitting-receiving system are nested coaxially; and the Ka waveband transmitting-receiving system comprises a dielectric rod structure, a dielectric circular polarizer, a Ka waveband orthomode coupler and a Ka waveband receiving-end filter which are connected in sequence. According to the Ku / Ka two-waveband transmitting-receiving share feed source provided by the invention, a Ku wave receiving-end standing wave is less than 1.4, the cross polarization is less than -30dB, a transmitting-end standing wave is less than 1.3, the cross polarization is less than -23dB, the transmitting-receiving isolation is less than -110dB, a Ka wave receiving-end standing wave is less than 1.8, a transmitting-end standing wave is less than 1.7, the axial ratio is less than 1.8, and the transmitting-receiving isolation is less than -82dB.

Description

technical field [0001] The invention relates to the field of antenna feed sources in wireless microwave communication, and more specifically relates to a Ku / Ka dual-band transceiver common feed source. Background technique [0002] In recent years, satellite communication has developed rapidly in the commercial and military fields, and its uses have become more and more diverse. The traditional C-band and S-band are no longer able to meet the needs of modern satellite communications. Recently, a new concept has been proposed in the fields of television, communication and navigation: satellite live broadcast, which enables users to directly obtain satellite signals without going through other intermediary systems. This requires lower cost, higher integration and miniaturization of satellite communication antenna systems. [0003] To improve the performance of the antenna system, a high-performance antenna feed is first required. [0004] US John Joseph Hanlin et al. introd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q5/00H01Q13/02H01P1/203H01P5/12
Inventor 杨智友徐利军王恒
Owner BEIJING TIANGONG KAIZHENG TECH
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