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High-efficiency silicon RFIC millimeter-wave elliptical slot-antenna with a quartz lens

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2 Author(s)
Edwards, J.M. ; Electr. & Comput. Eng. Dept., Univ. of California, San Diego, CA, USA ; Rebeiz, G.M.

This paper presents a W-band on-chip elliptical slot antenna fabricated in the IBM CMOS8RF (0.13 μm) process. This antenna has a measured efficiency of 7% and a measured gain of -5.7 dB at 88 - 90 GHz. The measured impedance bandwidth is 3.1%. Although it is not efficient as a standalone element for RFIC applications, the elliptical slot is very promising as a feed for an extended hemispherical lens. Simulated results indicate that the antenna efficiency improves to 30% at 90 GHz using a quartz dielectric lens, with an impedance bandwidth of 4.4%. The simulated gain at 90 GHz is 15 dB when placed on 12 mm diameter lens, ideal for high gain silicon RFIC applications.

Published in:

Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on

Date of Conference:

3-8 July 2011