Abstract
A new compact wideband circularly polarized (CP) antenna is proposed in this work. The antenna consists of a CP square-loop with sequential phase (SP) characteristics, four strip-lines as driven elements, four L-shaped patches with I-slots and four I-shaped patches as parasitic elements. The square-loop is utilized to feed the two pairs of parasitic patch arrays by a capacitively coupled way. The proposed antenna has a broad 3-dB axial ratio bandwidth (ARBW) of 18.9% (6.35 GHz, 5.75-6.95 GHz), and a wide 10-dB impedance bandwidth (IBW) of 23% (6.38 GHz, 5.65-7.12 GHz). Besides, the presented antenna features flat gain within the CP operation bandwidth and compact structure.
Highlights
O WING to the outstanding features of improving polarization mismatch and eliminating multipath distortion than linear-polarization, circular-polarization (CP) is massively adopted in satellite and mobile communications [1]–[2]
The antenna consists of a CP square-loop with sequential phase characteristics, four strip-lines as driven elements, four L-shaped patches with I-slots and four I-shaped patches as parasitic elements
The antenna consists of two pairs of parasitic elements that are placed outside a sequential phase (SP) square-loop feeding structure, which is directly connected with a 50- coaxial cable
Summary
O WING to the outstanding features of improving polarization mismatch and eliminating multipath distortion than linear-polarization, circular-polarization (CP) is massively adopted in satellite and mobile communications [1]–[2]. Reference [13] designs a broadband CP MPA which employs the SP feeding structure to the CP elements through aperture coupling, which needs three substrate layers.
Sign-in/Register to view highlights & summary 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 callDisclaimer: 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.
