Design of Circularly Polarized Antenna for 60 GHz Wireless Communications

Conference: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
03/23/2009 - 03/27/2009 at Berlin, Germany

Proceedings: EuCAP 2009

Pages: 3Language: englishTyp: PDF

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Zhou, Rongguo; Xin, Hao (Department of Electrical and Computer Engineering, The University of Arizona, 1230 E. Speedway, USA)
Liu, Duixian (IBM T. J. Watson Research Center, Yorktown Heights, NY 10598, USA)

This paper presents the design of a fully packaged 60 GHz circularly polarized wideband patch antenna incorporating an air cavity and a fused silica superstrate. A coplanar waveguide (CPW) to microstrip transition with λ/4-open-ended stubs are designed to match the antenna to the CPW packaging interface. The performances of the antennas with the CPW feeding and the microstrip feeding are compared, both demonstrating a wide bandwidth and high efficiency. The experimental results of the final packaged CPW-fed antenna agree well with the simulation results.