Half-mode substrate integrated waveguide leaky-wave antenna for variable polarization and frequency scanning

A half-mode substrate integration, waveguide antenna technology, used in radar and other fields that require operating frequency and polarization reconfiguration, and wireless communications, it can solve the problems of large antenna structure, difficult carrier conformality, and heavy weight, and achieve low Loss, low cost, small size effect

Active Publication Date: 2013-12-11
BEIHANG UNIV
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Problems solved by technology

[0007] In order to overcome the shortcomings of the existing antenna structure, which are large in size, heavy in weight, and difficult to conform to the carrier, and at the same time realize the functions of polarization reconstruction and frequency scanning, the present invention provides a semi-modular base that realizes variable polarization and frequency scanning. Chip Integrated Waveguide Leaky Wave Antenna

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  • Half-mode substrate integrated waveguide leaky-wave antenna for variable polarization and frequency scanning

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Embodiment 1

[0054] In order to illustrate the structure of the half-mode substrate integrated waveguide leaky-wave antenna with variable polarization and frequency scanning functions Figure 1A ~ 1G The parameter values ​​in are selected, and the antenna of the present invention is designed, simulated and analyzed on a computer equipped with Ansoft HFSS. The computer is a modern intelligent electronic device that can automatically and high-speed perform a large number of numerical calculations and various information processing according to pre-stored programs. The minimum configuration is CPU 2GHz, memory 2GB, hard disk 180GB; operating system is windows2000 / 2003 / XP. HFSS software is developed by Ansoft Company in the United States. It is a three-dimensional electromagnetic field simulation software. It applies the tangential vector finite element method to solve the electromagnetic field distribution of any three-dimensional radio frequency and microwave devices, calculate the loss caus...

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Abstract

The invention discloses a half-mode substrate integrated waveguide leaky-wave antenna for variable polarization and frequency scanning, and belongs to the technical field of wireless communication. The antenna comprises a medium substrate with metal patches arranged on two faces, a half-mode substrate integrated waveguide antenna array A, a half-mode substrate integrated waveguide antenna array B, four micro-strip feeder lines, a 3dB directional coupler and two micro-strip connecting lines are arranged on one metal patch, an interdigital groove inclined by -45 degrees and a metal through hole A are etched in the half-mode substrate integrated waveguide antenna array A, and an interdigital groove inclined by 45 degrees and a metal through hole A are etched in the half-mode substrate integrated waveguide antenna array B. Compared with the prior art, the half-mode substrate integrated waveguide leaky-wave antenna is low in loss, low in cost, small in size and capable of achieving multiple kinds of polarization simply and effectively and achieving beam scanning economically and practically.

Description

technical field [0001] The present invention relates to a half-mode substrate integrated waveguide leaky wave antenna, more particularly, refers to a half-mode substrate integrated waveguide leaky wave antenna that realizes the functions of variable polarization and frequency scanning, and is widely used in wireless communication, Radar and other fields that require operating frequency and polarization reconfiguration. Background technique [0002] In 1998, Hirokawa and Uchimura (see reference [1]: J.Hirokawa and M.Ando, ​​"Single-layer feed waveguide consisting of posts for plane TEM wave excitation in parallel plates", IEEE Transactions on Antennas Propagation, vol.46 :625-630,1998; Reference [2]: H.Uchimur, T.Takenoshita and M.Fujii, "Development of laminated waveguide", IEEE Transactions on Microwave Theory and Techniques, vol.46(12), pp.2438 -2443,1998;) respectively proposed a structure formed by a one-dimensional array of metal vias, which can play a role similar to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/24H01Q1/38H01Q1/50
Inventor 陈爱新姜维维房见应小俊田凯强
Owner BEIHANG UNIV
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