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2020-12-01

Wideband Pentagonal Shape Microstrip Antenna Using a Pair of Rectangular Slots

By Amit A. Deshmukh and Venkata A. P. Chavali
Progress In Electromagnetics Research C, Vol. 107, 113-126, 2021
doi:10.2528/PIERC20102602

Abstract

Designs of a polygon shape microstrip antenna for increasing number of side lengths are studied. A detailed analysis is presented for the variations observed in the first and second order mode resonance frequencies in a polygon shape patch, from triangle to square to pentagon, ending up in a circle. Among all the polygon shapes, close spacing between the first two frequencies is obtained in the pentagon shape patch. A design of a pentagon shape microstrip antenna with a pair of slots is proposed. It gives impedance bandwidth of more than 700 MHz (>55%), which is maximum amongst all the polygon shapes employing a pair of rectangular slots. The proposed design offers peak broadside gain of 9 dBi over the bandwidth. A resonant length formulation and subsequent design methodology for the pentagon shape patch and its slot loaded variation are presented. This helps in the redesigning of a similar configuration in a given frequency range, using proximity and coaxial feeds.

Citation


Amit A. Deshmukh and Venkata A. P. Chavali, "Wideband Pentagonal Shape Microstrip Antenna Using a Pair of Rectangular Slots," Progress In Electromagnetics Research C, Vol. 107, 113-126, 2021.
doi:10.2528/PIERC20102602
http://jpier.org/PIERC/pier.php?paper=20102602

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