Dual-frequency coaxial feed source and antenna with the same

A technology of coaxial feed and coaxial horn, which is applied in the direction of antenna, antenna coupling, electrical components, etc., can solve the problems of limited application range of coaxial feed, and achieve the effect of suppressing high-order modes

Active Publication Date: 2017-05-31
SPACE STAR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a dual-frequency coaxial feed to solve the problem that the application range of the traditional coaxial feed is limited and has certain limitations

Method used

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  • Dual-frequency coaxial feed source and antenna with the same
  • Dual-frequency coaxial feed source and antenna with the same
  • Dual-frequency coaxial feed source and antenna with the same

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Embodiment Construction

[0040] The following description with reference to the accompanying drawings is provided to help a comprehensive understanding of various embodiments of the present disclosure defined by the claims and their equivalents. The following description includes various specific details to help understanding, but these details will be regarded as only exemplary. Therefore, those of ordinary skill in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the present disclosure. In addition, for clarity and conciseness, descriptions of well-known functions and configurations may be omitted.

[0041] The terms and vocabulary used in the following description and claims are not limited to the meaning of the document, but are only used by the inventor to enable the present disclosure to be understood clearly and consistently. Therefore, it should be obvious to those skilled in the a...

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Abstract

The invention discloses a dual-frequency coaxial feed source and an antenna with the same. The feed source comprises coaxially arranged inner and outer conductors. The outer conductor is a coaxial speaker working at an L frequency band, and the inner conductor is a dielectric rod speaker working at an S frequency band. The dielectric rod speaker is arranged in the inner cavity of the coaxial speaker. The coaxial speaker comprises a waveguide section, a transverse groove section and a choke groove section orderly arranged, and the radiuses of the waveguide section, the transverse groove section and the choke groove section are increased orderly. The inner side of the transverse groove section close to the waveguide section is provided with a matching groove. The waveguide section is connected to the transverse groove section through the matching groove. A structure of the coaxial nesting of the coaxial speaker working at the L frequency band and the dielectric rod speaker working at the S frequency band is employed, thus the feed source can work at the L frequency band and the S frequency band, the problems of beam equalization and impedance matching under an ultra wideband condition are solved effectively, and thus the dual-frequency coaxial feed source becomes an ultra wideband L / S dual-frequency feed source which covers a navigation satellite frequency band.

Description

Technical field [0001] The invention relates to the technical field of antennas, in particular to a dual-frequency coaxial feed source and an antenna with the same. Background technique [0002] The feed source is an important part of the reflective surface antenna system. Its function is to radiate the signal from the radio frequency to the reflective surface in the form of electromagnetic waves, and at the same time receive the signal from the satellite that passes through the reflective surface. At present, antennas used in satellite communications and measurement and control fields mainly include broadband, high-frequency, and dual-frequency or multi-frequency sharing technologies. Among them, dual-frequency or multi-frequency sharing technology solves the problem of multiple frequency bands for a set of antennas. The coaxial feed is used as an embedded dual-frequency feed, which enables L and S band signals to be transmitted through two channels, increasing the working band...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/14H01Q15/24H01Q19/10H01Q1/52
CPCH01Q1/52H01Q15/14H01Q15/24H01Q19/10H01Q13/0208
Inventor 赵娜宋珊张楠王孝卫
Owner SPACE STAR TECH CO LTD
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