Active Broad X-Band Circular Patch Antenna

Author

Andrenko, Andrey S. ; Ivanchenko, Igor V. ; Ivanchenko, Denis I. ; Karelin, Sergey Y. ; Korolev, Alexey M. ; Laz´ko, E.P. ; Popenko, Nina A.

Author_Institution

YRP R&D Center, Fujitsu Labs. Ltd., Yokosuka

Volume

5

Issue

1

fYear

2006

Firstpage

529

Lastpage

533

Abstract

This letter presents the results of experimental study of omnidirectional circular patch antenna operating in the TM₀₁₀ mode. Antenna geometrical parameters have been selected on the basis of theoretical calculations. It has been shown that the antenna of this kind with VSWR les 2 and bandwidth of 18% has a conical radiation pattern with maximum oriented 36deg to the zenith. The antenna has a side radiation level of -15 dB and a cross-component level of less than -25 dB. The experimental results are in good agreement with the theoretical calculations. Employment of the one-stage HEMT amplifier makes it possible to obtain the total gain of an active antenna of no less than 10 dB. This antenna can be successfully used for mobile systems, wireless indoor communications, as well as for array applications

Keywords

HEMT circuits; active antennas; antenna radiation patterns; broadband antennas; microstrip antennas; microwave amplifiers; TM₀₁₀ mode; active broad X-band circular patch antenna; antenna geometrical parameters; conical radiation pattern; omnidirectional circular patch antenna; one-stage HEMT amplifier; Antenna arrays; Antenna radiation patterns; Antenna theory; Bandwidth; Employment; HEMTs; Indoor communication; Mobile antennas; Patch antennas; Wireless communication; Circular patch antenna; HEMT amplifier; conical radiation pattern; indoor communications; near-field distribution;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2005.860200

Filename

4052592