volume | PIER Journals

Abstract

We have investigated elliptical annular ring microstrip antennas having a sine wave periphery both theoretically and experimentally. The proposed antenna gives a good circular polarization at the center frequency of 1.296 GHz, with measured 3 dB axial ratio bandwidth of about 0.73% (9.5 MHz) and impedance bandwidth of about 1.7% (22.0 MHz). Input and radiation characteristics are also examined for different sine wave amplitudes applied to the periphery of elliptical ring patch antenna.

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Dr. Merna Baharuddin

Mr. Victor Wissan

Prof. Josaphat Tetuko Sri Sumantyo

Dr. Hiroaki Kuze