A microstrip-coupled slot-loop antenna for integrated receivers in the millimeter-wave band

✍ Scribed by Pablo Otero; Alejandro Álvarez-Melcón; Jean-François Zürcher; Juan R. Mosig

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 153 KB
• Volume: 18
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/(sici)1098-2760(19980605)18:2<91::aid-mop3>3.0.co;2-c

✦ Synopsis

A square-loop slot antenna, printed at the back surface of an extended hemispherical lens, is examined as a candidate for ( ) millimeter-wa¨e mm-wa¨e integrated-circuit Schottky-diode mixers. The loop slot is etched in a microwa¨e substrate, and coupled to a microstrip line section printed on the other side of the substrate. A Schottky barrier diode shunted to ground is the mixing de¨ice. The input impedance of the antenna has been optimized to conjugate match the Schottky diode. To design and optimize the antenna, an efficient full-wa¨e method of ( ) moments MoM technique, which sol¨es the mixed potential integral ( ) equation MPIE in the stratified medium, has been de¨eloped. Patterns ha¨e been computed using the physical optics approximation and diffraction theory. The proposed configuration shows ¨ery wideband performance. Simulation results compare well with measurements. The proposed configuration is suitable to be scaled down for operation in the ( ) submillimeter-wa¨e submm-wa¨e band.