Abstract
A Dual-band Dual-polarized square slot antenna is presented in this paper. The proposed antenna consists of an L-shaped patch. Two Semi-Hexagonal notches have been etched from the lower boundary of the ground plane in order to increase impedance bandwidth and a rectangular slit at an angle of 45° with respect to center has also been added on the ground plane in order to enhance axial ratio (ARBW) at lower frequency region. By adjusting the size of the antenna, a Dual-band Dual-polarized broadband can be obtained, where we get circular polarization at lower region and linear polarization at higher region. By using this structure simulated Dual-impedance bandwidths are obtained from 1.46 GHz to 2.80 GHz at lower frequency region and from 5.786 GHz to 8.617 GHz at higher frequency region, at center frequencies of 1.998 GHz and 7.228 GHz, which are 67% and 39% respectively Simulated ARBW is 0.17 GHz at resonating frequency of 2.2 GHz which is 7.72%. Proposed antenna could be utilized for FIXED MOBILE, MOBILE-SATELLITE, EARTH EXPLORATION-SATELLITE, SPACE RESEARCH communication at 2.2 GHz circular polarized (CP) frequency band and IEEE 802.11/Wi-Fi, HIPERLAN 5.8 GHz band, for some C-band, ITU (8 GHz) wireless communication application in linear polarized (LP) band.
Published Version
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