DESING AND SIMULATION OF CIRCULAR PATCH ANTENNA WITH A RECONFIGURABLE POLARIZATION

Publication Date : 01/08/2017

Author(s) :

Bala, B.D, Muhammad, B. , Zakariyya, R.A., Saleh, M.A., Hamza, A.N..

Volume/Issue :

Volume 12

Issue 2

(08 - 2017)

Abstract :

A circular patch antenna with reconfigurable polarizations is proposed. Linear polarized (LP) antennas suf-fers from poor signal transmission during adverse weather condition and multipath effects as a result of sec-ondary transmission from nearby environment. Therefore circular polarized (CP) antennas prove to be a good candidate in this regard. The proposed antenna uses strip lines connected via a copper strip switch to achieve both right hand circular polarization and left hand circular polarizations. The overall size of the antenna is 0.52λo x 0.52λo at the operating frequency of 2.40 GHz. The antenna is compact and versatile due to its re-configurable ability. The simulated gain and radiation efficiency of 6.25 dBi and 84.5 % is obtained respec-tively for both polarization at the resonance frequency. The antenna performances in terms of reflection coef-ficients, electric field distributions and the radiation patterns are presented and discussed. The reflection coef-ficient and the gains obtained shows that the antenna has potential applications for WLAN (2.39-2.45 GHz) operations.

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