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2013-03-31

Cross-Polarization Reduction of E-Shaped Microstrip Array Using Spiral-Ring Resonator

By Chandan Kumar Ghosh and Susanta Kumar Parui
Progress In Electromagnetics Research C, Vol. 38, 217-227, 2013
doi:10.2528/PIERC13012103

Abstract

Design of (2 x 2) E-shaped microstrip patch antenna array integrated with spiral ring resonators (SRRs) is introduced for the reduction of cross-polar (XP) radiation. The addition of SRRs in the array structure does not affect other characteristics of the array antenna. The array is designed to function in the 5.25 GHz which corresponds to IEEE 802.11a wireless LAN application. The characteristic analysis such as return loss (RL), bandwidth (BW), and radiation patterns of the antenna with and without SRRs have been investigated. The array offers a bandwidth of 405 MHz (For RL < -10 dB) covering frequencies ranges from 5.175 to 5.580 GHz and gain of 12.60 dBi has been achieved. The array has been studied both numerically and experimentally by introducing SRRs. The XP radiation has been reduced by 10.5 dB with two sets of SSRs of similar geometry placed in between the patch elements of the array structure. Prototype antennas with and without SRRs have been fabricated tested and a remarkable agreement is obtained between the measured and the simulated results.

Citation


Chandan Kumar Ghosh and Susanta Kumar Parui, "Cross-Polarization Reduction of E-Shaped Microstrip Array Using Spiral-Ring Resonator," Progress In Electromagnetics Research C, Vol. 38, 217-227, 2013.
doi:10.2528/PIERC13012103
http://jpier.org/PIERC/pier.php?paper=13012103

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