Abstract
A compact epsilon-shaped (ε) ultra-wideband (UWB) antenna for dual-wideband circularly polarized (CP) applications has been investigated in this article. It consists of a stepped stub loaded modified annular ring-shaped radiator and modified CPW ground plane. The ground plane is loaded with two semicircular notches and a spiral-shaped slot. The impedance bandwidth (IBW) is 97.02% (10.4-30 GHz) along with an overall footprint of 20 × 20 mm2. The fractional axial ratio bandwidth (3-dB ARBW) for two wide bands is 38.50% (13.30-19.64 GHz) and 6.45% (26.25-28.00 GHz), respectively. The proposed antenna is left-hand circularly polarized with a peak gain of about 5.09 and 5.14 dB in both 3-dB ARBW bands. The proposed antenna is dominating other reported CP antenna structures in terms of number of CP bands, 3-dB ARBW, IBW, peak gain, and dimensions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of RF and Microwave Computer-Aided Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
