Ferroelectric materials in microstrip patch array antenna
Abstract
This paper describes the utilizing of ferroelectric
materials in antenna application. The proposed of ferroelectric
materials are Barium Strontium Titanate (BST) and Bismuth
Titanate (BiT). BST, with dielectric constant of r = 15 and BiT
with r = 21 of dielectric constant are formed in rectangular
shaped. The influence of various parameters on antenna
characteristics were investigated extensively using commercial
electromagnetic simulation software by Computer Simulation
Technology (CST). From both simulated and measured analysis,
it was demonstrated that ferroelectric materials have not only
improved the gain and directive emission but also enhance the
radiation efficiency. The results obtained also show that
ferroelectric materials are suitable for Access Points operating in
the WLAN IEEE 802.11 b/g and WiMAX IEEE 802.16 within the
range of 2.3 GHz to 2.5 GHz application.