volume | PIER Journals

Abstract

This paper presents a design of a compact wide slot circularly polarized antenna which is being fed by a microstrip feed line. The designed antenna covers an area of size 25 mmx25 mm with a substrate thickness of 1.6 mm. The 3 dB axial ratio (AR) band can be produced by projecting a circular stub in the ground plane and feeding the slot through an asymmetry-fed microstrip feedline. The AR bandwidth of the antenna is further improved by adding truncation in the ground plane. Measured results show that the graph attains an impedance matching bandwidth of 124.3% centered at 7.4 GHz (2.8-12 GHz) and a 3 dB AR bandwidth of is 52.42% centered at 5.15 GHz (3.8-6.5 GHz). The proposed antenna is suitable for the use in C-band application.

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Dr. Hirak Keshari Behera

Mr. Manas Midya

Dr. Laxmi Prasad Mishra