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Horizontally polarized leaky-wave antenna based on substrate-integrated image dielectric waveguide

A dielectric waveguide and horizontally polarized technology, which is applied to leaky waveguide antennas, antenna arrays that are energized separately, and antennas, etc., can solve the problems of inability to achieve miniaturization, miniaturization of hard-leakage wave array antennas, and high efficiency.

Active Publication Date: 2020-11-13
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the use of high-order modes, the unit spacing is not significantly reduced compared to other feeder forms, so miniaturization cannot be achieved
[0005] It can be found that it is difficult for existing schemes to use SIW and other transmission lines as leaky-wave antenna feeders to meet the requirements of beamforming, miniaturization, and high efficiency at the same time for leaky-wave array antennas; Array Forming and Miniaturization Design of Polarized Radiation Leaky Wave Antenna

Method used

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  • Horizontally polarized leaky-wave antenna based on substrate-integrated image dielectric waveguide
  • Horizontally polarized leaky-wave antenna based on substrate-integrated image dielectric waveguide
  • Horizontally polarized leaky-wave antenna based on substrate-integrated image dielectric waveguide

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Embodiment 1

[0041] A horizontally polarized leaky-wave antenna based on a substrate-integrated image dielectric waveguide, including a feeder structure 1, a radiation structure 2 and a feeder structure 3,

[0042] The feeder structure 1 of the antenna includes, from bottom to top, the metal ground 12 of the lower layer of the feeder, and the feeder dielectric layer 11, wherein the feeder dielectric layer 11 is symmetrically arranged with two air hole areas 112 left and right along the central axis, and between the two air hole areas 112 Be the central transmission belt 111;

[0043] The radiation structure 2 includes a plurality of radiation units. The radiation unit is a metal strip-shaped patch 21 close to the upper surface of the central transmission belt part 111. The metal strip-shaped patches 21 are arranged along the electromagnetic wave propagation direction of the central transmission belt. The angle between the strip patch 21 and the central axis 113 of the conveyor belt is not ...

Embodiment 2

[0048] Such as Figure 8 , The difference between this embodiment and Embodiment 1 is that each radiation unit includes two parallel metal strips.

Embodiment 3

[0050] Such as Figure 9 As shown, the difference between this embodiment and Embodiment 1 is that in the direction perpendicular to the propagation direction of the feeder electromagnetic wave, multiple radiation parts are arranged side by side, and the original one-dimensional linear array is expanded into a two-dimensional array, and then two-dimensional Dimensional shaping; the feeder structure of the formed two-dimensional array shares the feeder medium layer 11 and the metal ground 12 of the feeder lower layer. The feed structure is combined with the change of the power distribution network.

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Abstract

The invention provides a horizontally polarized leaky-wave antenna based on a substrate-integrated image dielectric waveguide, which includes a feeder structure, a radiation structure, and a feeder structure. The feeder structure of the antenna is the metal ground of the lower layer of the feeder line and the dielectric layer of the feeder line from bottom to top. , the radiating structure includes a plurality of radiating units, the radiating unit is a metal strip-shaped patch close to the upper surface of the central transmission belt part, and the feeding structure includes the metal ground of the lower layer of the feeding structure and the medium layer of the feeding structure in order from bottom to top , the upper layer metal, the present invention adopts SIIG feeder combined with corresponding radiation unit to realize miniaturization under the premise of ensuring the high efficiency of leaky wave antenna; the present invention uses SIIG feeder combined with radiation unit to be applied in array forming, which can guarantee the forming effect At the same time, high efficiency and miniaturization of the antenna are realized.

Description

technical field [0001] The invention belongs to the technical field of leaky wave antennas, relates to SIIG technology and antenna miniaturization technology, and specifically relates to a horizontally polarized leaky wave antenna based on a substrate-integrated image dielectric waveguide. Background technique [0002] The leaky wave antenna is an antenna that radiates into space by generating energy leakage in the longitudinal direction of the waveguide structure. It can be divided into continuous leaky wave antenna and periodic leaky wave antenna in form. The periodic leaky wave antenna is composed of a uniform guided wave structure with periodic loading, and radiates energy outward through surface loading. This antenna has the characteristics of low profile, commonality with metal planes and beam scanning by changing frequency. Compared with the uniform leaky wave antenna, the periodic leaky wave antenna usually has better directionality, larger scanning range and more f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q13/28H01Q21/00H01Q21/06H01Q21/08
CPCH01Q1/38H01Q1/48H01Q1/50H01Q13/28H01Q21/0006H01Q21/065H01Q21/08
Inventor 程钰间穆梦甜柏航樊勇张波林先其宋开军赵明华
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA