Planar waveguide continue transverse stub (CTS) antenna broadband feeding line source based on planar dielectric lens

A dielectric lens and planar waveguide technology, which is applied in the field of antenna and feed source, can solve the problems of inability to realize miniaturization, broadband and good matching, and difficult processing and assembly at the same time, and achieve compact structure, small overall size, and good impedance matching Effect

Active Publication Date: 2015-12-09
XIDIAN UNIV
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Problems solved by technology

[0010] In order to overcome the defects in the prior art, the present invention provides a slab waveguide CTS antenna broadband feeder source based on a planar dielectric lens, which is used to solv

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  • Planar waveguide continue transverse stub (CTS) antenna broadband feeding line source based on planar dielectric lens
  • Planar waveguide continue transverse stub (CTS) antenna broadband feeding line source based on planar dielectric lens
  • Planar waveguide continue transverse stub (CTS) antenna broadband feeding line source based on planar dielectric lens

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[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments.

[0027] Reference figure 1 , The present invention includes an H-face horn 1, a planar dielectric lens 2 and a slab waveguide 3. The H-face horn 1 and the slab waveguide 3 can be directly connected through integrated processing, and the planar dielectric lens 2 is located in the slab waveguide 3 close to the output of the H-face horn 1. At the port; the H-face horn 1 is composed of a rectangular feeder waveguide and a sector-shaped H-face horn. The opening angle of the sector-shaped horn is 90 degrees, which is used to generate cylindrical waves; the plane dielectric lens 2 is composed of an intermediate layer 21 and symmetrical to the intermediate layer 21 Each matching layer includes a plurality of matching sublayers, wherein the middle layer 21 an...

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Abstract

The invention proposes a planar waveguide continue transverse stub (CTS) antenna broadband feeding line source based on a planar dielectric lens, which is used for solving the problems of incapability in simultaneously achieving miniaturization, broadband and favorable matching and high difficulty in processing assembly of the traditional line source. The feeding line source comprises an H-surface trumpet (1), a planar dielectric lens (2) and a planar waveguide (3), wherein an output port of the H-surface trumpet (1) is connected with the planar waveguide (3), the planar dielectric lens (2) is arranged in the planar waveguide (3) and comprises an intermediate layer (21) and two matching layers (22), the two matching layers are symmetric to the intermediate layer (21) and comprise a plurality of matching sub layers, each layer adopts a straight line array structure formed by a plurality of strips with different dielectric constants and extend from the middle of the strip straight line array to the two ends, and the dielectric constants of the strips are gradually reduced. The planar waveguide CTS antenna broadband feeding line source has the advantages of small structural size, wide frequency band and favorable matching performance, is easy to produce, adjust and assemble, and can be applicable for planar waveguide CTS antenna feeding.

Description

technical field [0001] The invention belongs to the technical field of antennas and feed sources, and relates to a broadband line source that converts a cylindrical wave front generated by an H-plane horn into a plane wave front and outputs it through a planar dielectric lens, so as to realize power feeding to a planar waveguide CTS antenna. Background technique [0002] In the field of communication applications, high-performance antennas with wide frequency band and low profile have always been the goal pursued by antenna designers. Especially for space-borne antennas, the wide frequency band can enable the antenna to work in multiple frequency bands and achieve multi-functional multiplexing; the low profile can greatly reduce the cost of satellite launch. Therefore, it is an important task to propose a low-cost high-performance antenna that can be applied in the field of broadband communication. The desired characteristics include: wide frequency band, low mechanical prof...

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Application Information

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IPC IPC(8): H01Q15/08H01Q1/50
Inventor 张鹏飞张晓辉王蔚徐瑞映刘辉周琪
Owner XIDIAN UNIV
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