Premium
Hexagonal ring electromagnetic band gap‐based slot antenna for circular polarization and performance enhancement
Author(s) -
Verma Alka,
Singh Anil Kumar,
Srivastava Neelam,
Patil Shilpee,
Kanaujia Binod Kumar
Publication year - 2020
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32342
Subject(s) - microstrip antenna , patch antenna , bandwidth (computing) , optics , slot antenna , microstrip , axial ratio , hexagonal crystal system , wavelength , circular polarization , physics , optoelectronics , materials science , electrical engineering , antenna (radio) , engineering , telecommunications , chemistry , crystallography
In this article, a hexagonal ring electromagnetic band gap (HREBG) structure‐based circularly polarized (CP) slot antenna for improving performance is proposed. The proposed antenna has a compact structure with a low profile of 0.517 λ o × 0.517 λ o × 0.055 λ o ( λ o stands for the free space wavelength at 5.10 GHz), is coplanar waveguide fed, and comprises of a circular microstrip patch with a T‐shaped slot. An inclined coupling slot loaded feed line is used on the ground for the generation of CP. Furthermore, eight HREBG's are implemented on the substrate to enhance the performance of the antenna, thereby achieving a measured impedance bandwidth of 18%, 3‐dB axial ratio bandwidth of 6.4%, and a peak gain of 5.93 dBi in the operating bandwidth. A close agreement is reached between the experimental results and the simulated results to verify the proposed antenna's performance.