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DESIGN, SIMULATION AND EXPERIMENTAL ANALYSIS OF WIDEBAND CIRCULARLY POLARIZED CAPACITIVE FED MICROSTRIP ANTENNA

By S. Murugan and V. Rajamani

Full Article PDF (516 KB)

Abstract:
Wideband Circularly polarized antenna receive much attention in the wireless communication applications such as Global positioning system (GPS) and Personal communication system (PCS). In this paper, a microstrip square patch, truncated in opposite corners, suspended above the ground plane is proposed. The geometry incorporates the capacitive feed strip which is fed by a coaxial probe. The proposed structure is designed, simulated and fabricated to cover the entire frequency of GPS, i.e., L1 (1.575 GHz), L2 (1.227 GHz), and L5 (1.176 GHz), covering from (1.15 GHz-1.6 GHz). The parameters such as return loss, VSWR, impedance, radiation efficiency axial ratio and radiation pattern are used for analyzing the performance of the antenna. Both simulated and experimental results are presented and they exhibit broadband characteristics, covering the desired frequency bands.

Citation:
S. Murugan and V. Rajamani, "Design, Simulation and Experimental Analysis of Wideband Circularly Polarized Capacitive Fed Microstrip Antenna," Progress In Electromagnetics Research C, Vol. 30, 173-188, 2012.
doi:10.2528/PIERC12032601
http://www.jpier.org/pierc/pier.php?paper=12032601

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