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Low profile coupling feed circularly polarized antennas for WLAN applications
Author(s) -
Srivastava Kunal,
Kumar Ashwani,
Kanaujia Binod K.,
Dwari Santanu,
Kumar Sachin
Publication year - 2019
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.21525
Subject(s) - axial ratio , ground plane , bandwidth (computing) , microstrip antenna , optics , circular polarization , patch antenna , microstrip , radiator (engine cooling) , materials science , acoustics , physics , antenna (radio) , computer science , engineering , electrical engineering , telecommunications
This article presents two designs of circularly polarized antenna with simple circular‐shaped radiator and circular slotted ground plane. An arc‐shaped microstrip line coupling feed mechanism is used to excite the circular radiating patch. The 3‐dB axial ratio bandwidth of the proposed antenna‐1 and proposed antenna‐2 are 3.33% and 18%, respectively. The proposed design has several advantages such as easy matching, fabrication simplicity, compact size, and wide axial ratio bandwidth. Both the antennas have been designed on FR‐4 substrate with dielectric constant 4.4 and thickness 1.59 mm. Simulated and measured results are presented to validate the working of the proposed antennas.