Summary
International Symposium on Antennas and Propagation
2012
Session Number:3C1
Session:
Number:3C1-3
Linear Polarization Switchable Microstrip Array Antenna Using Magic-T Circuit
Tomoya Onishi, Md. Azad Hossain, Eisuke Nishiyama, Ichihiko Toyoda,
pp.-
Publication Date:2012/10/29
Online ISSN:2188-5079
Summary:
Recently, the planar antenna technologies have been advancing due to the increasing demands for various wireless applications in the ubiquitous society. Furthermore, reconfigurable planar antennas have attracted much more attentions because of their versatility in various wireless systems in terms of frequency controllability and polarization diversity. In this paper, an orthogonal linear polarization switchable microstrip four-element array antenna is proposed. The proposed antenna having a polarization switching function provides high design flexibility for wide variety of radio systems. In order to switch the polarization, the boundary condition of the array antenna is controlled by the ON/OFF condition of the diodes mounted on each antenna element. Magic-T circuits employing Both-sided MIC technology are effectively used to isolate the switching signal from RF signal.