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Low Profile and High Gain Unidirectional Circularly Polarized S-Shaped Slot Antenna
Journal
2021 IEEE Indian Conference on Antennas and Propagation, InCAP 2021
Date Issued
2021-01-01
Author(s)
Arora, Surbhi
Kumar, Girish
Abstract
In this paper, a low profile and high gain unidirectional circularly polarized (CP) S-shaped slot antenna is designed and fabricated. The antenna has 72.2% impedance bandwidth (|S11| ≤-10dB) in the frequency range from 2.92 to 6.22 GHz and 13% (4.31-4.91 GHz) 3-dB axial ratio bandwidth. The designed antenna is unidirectional having the size of 0.67λ0 × 0.6λ0× 0.12λ0 (λ0 is the wavelength at the lowest operating frequency in free space) with the peak gain of 8.48 dBi at 5 GHz. The designed antenna is fabricated and simulated results are validated with measured results.
Subjects