Title :
Wideband W-band patch antenna
Author :
Zhou, Hongyu ; Sutton, Nathan A. ; Filipovic, Dejan S.
Author_Institution :
Dept. of Electr., Comput., & Energy Eng., Univ. of Colorado at Boulder, Boulder, CO, USA
Abstract :
A W-band patch antenna designed to be compatible with a sequential surface micromachining process known as PolyStrata™ is demonstrated in this paper. The antenna is cavity backed and excited with differential probe feed. A copper wall is introduced in the middle of the patch to reduce the port coupling and mechanically support the patch. A 180° hybrid designed as combination of a 90° coupled line hybrid and 90° phase shifter is monolithically integrated with the antenna to provide the necessary differential input. The presented antenna achieves VSWR<;2 from 76.5GHz to 99.5GHz, and VSWR<;2.5 from 75GHz to 120GHz, respectively. Broadside realized gain above 7dBi is predicted from 75GHz to 115GHz. The theoretical results are verified using finite element method code Ansys-HFSS and finite integration technique code CST-MWS.
Keywords :
antenna feeds; finite element analysis; micromachining; microstrip antennas; millimetre wave antennas; PolyStrata; finite element method code Ansys-HFSS; finite integration technique code CST-MWS; frequency 75 GHz to 120 GHz; phase shifter; sequential surface micromachining process; wideband W-band patch antenna; Finite element methods; Patch antennas; Phase shifters; Probes; Wideband;
Conference_Titel :
Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4577-0250-1
