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2022-02-04
A Compact Circularly Polarized Rotated L-Shaped Antenna with J-Shaped Defected Ground Strucutre for WLAN and V2X Applications
By
Progress In Electromagnetics Research Letters, Vol. 102, 135-143, 2022
Abstract
A novel and compact microstrip-line fed printed antenna for wideband circular polarization (CP) radiation is proposed. The designed antenna utilizes a crescent-shaped substrate, rotated L-shaped monopole, and defected ground structure (DGS) to achieve a wide 3-dB axial ratio (AR) bandwidth and 10-dB impedance bandwidth (ZBW) across the entire 5 GHz Wireless Local Area Network (WLAN) and Vehicle to Everything (V2X) operational bands. As the substrate of the proposed antenna is only 0.8 mm thick, it has a very low profile of 0.014λ in terms of free space wavelength (λ) at 5.5 GHz. The proposed CP antenna exhibits overlapping 10-dB ZBW and 3-dB AR bandwidth (ARBW) of 22.05% (4.80-5.99 GHz), along with broadside far-field patterns, gain greater than 2.5 dBi and efficiency above 85%throughout the desired operating band. Therefore, it is a good candidate for WLAN and V2X communication applications.
Citation
Jayshri Kulkarni Chow-Yen-Desmond Sim Ajay K. Poddar Ulrich L. Rohde Abdullah G. Alharbi , "A Compact Circularly Polarized Rotated L-Shaped Antenna with J-Shaped Defected Ground Strucutre for WLAN and V2X Applications," Progress In Electromagnetics Research Letters, Vol. 102, 135-143, 2022.
doi:10.2528/PIERL22010305
http://www.jpier.org/PIERL/pier.php?paper=22010305
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