A Novel Mode-Transducing Antenna for High-Power Microwave Application

Author

Yuan, Cheng-Wei ; Fan, Yu-Wei ; Zhong, Hui-Huang ; Liu, Qing-Xiang ; Qian, Bao-Liang

Author_Institution

Nat. Univ. of Defense Technol., Changsha

Volume

54

Issue

10

fYear

2006

Firstpage

3022

Lastpage

3025

Abstract

A mode-transducing antenna composed of a coaxial plate-inserted mode converter and a compact coaxial conical horn was presented. The antenna transforms the TEM mode into coaxial TE₁₁ mode firstly and then radiates it from the coaxial conical horn. It has the virtues of compactness, high aperture efficiency, boresight peak, and low sidelobe level. An antenna for a 1.76 GHz magnetically insulated transmission-line oscillator (MILO) was designed with a length of 60 cm and an aperture radius of 23.5 cm. It produces a gain of 17.4 dBi with an aperture efficiency of 74%. The test results are in good agreement with the simulations. The antenna also presents good performances in the high-power microwave experiments of the MILO

Keywords

aperture antennas; conical antennas; horn antennas; microwave antennas; microwave oscillators; transmission lines; 1.76 GHz; 60 cm; MILO; TEM mode; coaxial plate-inserted mode converter; compact coaxial conical horn; high aperture efficiency; high-power microwave application; low sidelobe level; magnetically insulated transmission-line oscillator; mode-transducing antenna; Aperture antennas; Coaxial components; Horn antennas; Insulation; Microwave antennas; Microwave oscillators; Tellurium; Testing; Transmission lines; Transmitting antennas; High-power microwave (HPM); horn antenna; mode converter; transmitting antennas;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2006.882199

Filename

1707940