Vol. 44

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2013-10-11

An Array of Broadband Dual Polarized Electromagnetically Coupled Microstrip Antennas

By Prashant Kumar Mishra, Dhananjay Ramchandra Jahagirdar, and Girish Kumar
Progress In Electromagnetics Research C, Vol. 44, 211-223, 2013
doi:10.2528/PIERC13090905

Abstract

In this paper, design of broadband dual polarized electromagnetically coupled antenna array is proposed to achieve high isolation between two orthogonal ports. A dual polarized electromagnetically coupled microstrip antenna is designed with a suspended radiating element placed in inverted microstrip configuration and excited by two orthogonal microstrip line feeds to achieve broad bandwidth and high isolation. The antenna is designed for 5.8 GHz frequency band. In order to optimize the design, detailed parametric analysis of the antenna is presented. The antenna design is extended to 2×2 antenna array, with top layer radiating elements electromagnetically coupled to the open microstrip feed line network. The 6×6 antenna array is designed using 2×2 sub arrays with power divider network. The power divider network is integrated on the back side of the feed network to feed 2×2 antenna sub arrays. The 6×6 antenna array achieves VSWR < 2 bandwidth of 26% for Port 1 and 28% for Port 2. The 6×6 antenna array has measured gain of 22 dBi at 5.8 GHz with isolation between two orthogonal ports > 30 dB.

Citation


Prashant Kumar Mishra, Dhananjay Ramchandra Jahagirdar, and Girish Kumar, "An Array of Broadband Dual Polarized Electromagnetically Coupled Microstrip Antennas," Progress In Electromagnetics Research C, Vol. 44, 211-223, 2013.
doi:10.2528/PIERC13090905
http://jpier.org/PIERC/pier.php?paper=13090905

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