Abstract
A dual circular polarized microstrip patch antenna array in S band is presented with high gain, low sidelobe and low cross polarization, which can readily be applied for satellite communication. The antenna array is composed of four 2 × 2 subarrays, two feed networks and a 3dB coupler. The dual linear polarized elements fed with the 180° phase shift to decrease the cross polarization. The two feed networks are implemented on two stacked substrates and connected by the 3dB coupler to achieve dual circular polarizations. The array is fabricated and measured. The measured results agree with the simulated results well. The return loss is better than 25dB, and the isolation is more than 20dB over the operating band. In addition, the cross polarization greater than 25dB and gain more than 18.8 dB for both LHCP and RHCP are obtained.
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.
