Conical Beam Array Antenna With Polarization Diversity

Author

Sim, Chow-Yen-Desmond

Author_Institution

Dept. of Electr. Eng., Feng Chia Univ., Taichung, Taiwan

Volume

60

Issue

10

fYear

2012

Firstpage

4568

Lastpage

4572

Abstract

This study designed a 2×2 circular disc array antenna with omnidirectional radiation pattern and polarization diversity. Each disc element was located above a circular slot fed by an L-shaped strip, in which the switching between two orthogonal linear polarizations (LP) and circular polarization (CP) were realized by controlling two pin diodes. To allow conical beam for all polarization senses, a meticulously designed cross-shaped feeding network is proposed, and besides showing a suffficient 10 dB return loss bandwidth that covers the 2.4 GHz band of WLAN operation, good cross-polarization level (XPL) were measured when the array operated in all available polarization senses.

Keywords

UHF antennas; antenna feeds; antenna radiation patterns; microstrip antenna arrays; omnidirectional antennas; wireless LAN; L-shaped strip; WLAN operation; circular disc array antenna; circular polarization; circular slot feed; conical beam array antenna; cross shaped feeding network; frequency 2.4 GHz; omnidirectional radiation pattern; orthogonal linear polarizations; polarization diversity; Antenna arrays; Antenna measurements; Antenna radiation patterns; Arrays; Microstrip antennas; Polarization; Switches; Conical beam; array antenna; omnidirectional patterns; polarization diversity;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2012.2207319

Filename

6236084