Abstract

A bat-shaped microstrip patch antenna is proposed with tri-band characteristics (11.0-11.5 GHz), (11.8-12.3 GHz), (13.0-14.3 GHz) and impedance bandwidth 4.4%, 4.1%, and 9.5% at resonant frequencies 11.37 GHz, 12.2 GHz, and 13.5 GHz, respectively. The proposed antenna exhibits peak gain of 2.6 dBi. The proposed microstrip patch antenna shows the dual band circularly polarized characteristics with two bands (11.0-13.0 GHz) and (13.2-14.0 GHz) and 3 dB axial-ratio (AR) impedance bandwidths 15% and 5.2%, respectively. Investigation of proposed antenna is done using evolution technique. The results are verified experimentally in terms of reflection coefficient, gain, axial ratio, and radiation pattern.

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Dr. Sweta Singh

Mr. Karunesh Srivastava

Ms. Farha Usman

Dr. Ram Suchit Yadav

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