Guo, Yong and Lee, Karen and Stimson, Philip and Potter, Kent A. and Rutledge, David B. (1990) Aperture efficiency of chemically etched horns at 93 GHz. In: 1990 International Symposium Digest: Antennas and Propagation: Merging Technologies for the 90's. IEEE , Piscataway, NJ, pp. 1425-1428. ISBN 22601906 http://resolver.caltech.edu/CaltechAUTHORS:20120508-133503684
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The aperture efficiency of monolithic two-dimensional horn imaging arrays has been optimized at 93 GHz. The imaging arrays consist of several silicon wafers into which arrays of pyramidal horns are etched chemically. Dipole antennas and detectors are suspended on thin silicon oxynitride membranes on one of the central silicon wafers about halfway down the horns. The devices are 7×7 arrays with a 1 λ opening and a 71° flare angle. Antenna impedances have been measured on a low-frequency model. A variety of millimeter-wave dipole antennas and bolometers have been designed and tested. A large-area bismuth thin-film power meter is used to obtain accurate absolute power. The measured aperture efficiency improved from 44% to 72%. The highest system coupling efficiency with a lens was 36% including lens absorption and reflection losses.
|Item Type:||Book Section|
|Additional Information:||© 1990 IEEE. Date of Current Version: 06 August 2002. This research was supported by the Department of Defense Terahertz Technology Program, contract F19628-87-K-0051, Jet Propulsion Laboratory and Aerojet ElectroSystems Co.|
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|Official Citation:||Guo, Y.; Lee, K.; Stimson, P.; Potter, H.A.; Rutledge, D.B.; , "Aperture efficiency of chemically etched horns at 93 GHz," Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest. , vol., no., pp.1425-1428 vol.4, 7-11 May 1990 doi: 10.1109/APS.1990.115381 URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=115381&isnumber=3384|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||08 May 2012 23:13|
|Last Modified:||26 Dec 2012 15:10|
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