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Proceedings Paper

Properties of cavity-backed slot-ring antennas at 95 GHz
Author(s): Shalva Nolen; Todd E. Harvey; Carl D. Reintsema; Erich N. Grossman
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Paper Abstract

Slot-ring antennas with plane backshorts designed for operation at 95 GHZ have been fabricated and their properties measured. Using optical lithography, we fabricated the slot-ring antennas, along with integrated niobium thin-film bolometers, on dielectrically thin silicon substrates. We have performed a theoretical analysis of the slot-ring antennas with planar backshorts and compared the theoretical results with our measured beam patterns. The measured antenna patterns have highly circular main beams with full -3 dB beam widths of 21. The patterns have low sidelobe levels of about -15 dB in the H-plane and below -25 dB in the E-plane and a directivity of 17 dB. We are investigating a focal-plane array of slot-r9ng antenna- coupled bolometers for use in a concelaed-weapons imaging system.

Paper Details

Date Published: 21 August 2001
PDF: 9 pages
Proc. SPIE 4373, Passive Millimeter-Wave Imaging Technology V, (21 August 2001); doi: 10.1117/12.438144
Show Author Affiliations
Shalva Nolen, National Institute of Standards and Technology (United States)
Todd E. Harvey, National Institute of Standards and Technology (United States)
Carl D. Reintsema, National Institute of Standards and Technology (United States)
Erich N. Grossman, National Institute of Standards and Technology (United States)

Published in SPIE Proceedings Vol. 4373:
Passive Millimeter-Wave Imaging Technology V
Roger M. Smith; Roger Appleby, Editor(s)

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