Lehto, A.
Tuovinen, A.
Raisanen, A.
Radio Lab., Helsinki Univ. of Technol., Espoo, Finland;
This paper appears in: Electronics Letters
Publication Date: 12 Sept. 1991
Volume: 27,
Issue: 19
On page(s): 1699-1700
ISSN: 0013-5194
References Cited: 0
CODEN: ELLEAK
INSPEC Accession Number: 4015867
Digital Object Identifier: 10.1049/el:19911058
Posted online: 2002-08-06 17:42:42.0
Abstract
Different types (pyramidal, convoluted, wedge, flat) of absorber panel made by several manufacturers have been measured at 107 and 183 GHz. These measurements revealed a rapid degradation of the quality of absorbers from 107 to 183 GHz: reflectivity increased nearly 10 dB. The best absorbers have reflectivities below -40 dB at 107 GHz and about -35 dB at 183 GHz.
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