Compact inset-fed microstripline circularly polarized antenna

Design of a compact circularly polarized antenna is introduced, which is a modification of previously proposed antenna with a similar shape. The first modification proposed in this paper is to decrease the original antenna dimension while operating at the same frequency 1.6 GHz. The second modification done is scaling down the first modified design to a final dimension of 2.4×2.4 cm² in order to shift the band of operation to 2.0 GHz. The proposed antenna has a bandwidth from 1.965 GHz to 2.08 GHz the antenna is fabricated on an FR4 substrate material, and the measured results show a good agreement with the simulated ones .