Abstract
A shared antenna aperture for simultaneous transmit and receive (STAR) operating from 0.5 to 45GHz with isolation >50dB over the entire band is discussed. The proposed system utilizes four distinct band breaks: 0.5–2.5GHz, 2–7GHz, 619GHz, and 18–45GHz. The transmitting and receiving apertures of each band are designed, fabricated, and integrated on 46cm×46cm ground plane. A monostatic STAR system based on a lens-loaded cavity-backed four-arm spiral antenna is used to cover 0.5–2.5GHz band requirements. Other bands have dual-polarization capability and rely on physically displaced TX and RX antennas, engineered antenna patterns, and implementation of high impedance surfaces (i.e. bed of nails) to achieve desired isolation level. A dual-polarized Vivaldi array recessed in a cavity and quad-ridge horns are employed for the 2–7GHz and 6–45GHz bands; respectively.
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.
