A 585 GHZ Compact Range for Scale-Model RCS Measurements
Abstract
A 585 GHz compact range has been developed for obtaining full-scale radar cross-section (RCS) measurements on scale-model targets. The transceiver consists of two continuous wave (CW) submillimeter-wave gas lasers along with two cooled-InSb heterodyne mixers. Coherent detection was implemented to maximize sensitivity and allow for a vector measurement capability. In addition, the target can be rapidly translated in range to generate a doppler modulation that is used to reject background signals during low-RCS measurements. Although most scaling is accomplished with metal targets, a materials program has evolved to develop non-metallic materials with scaled dielectric properties as well as submillimeter-wave anechoics. As part of an on-going validation and test program, RCS measurements are made on scaled simple and complex shapes and compared with full-scale measurements and computer predictions. A description of this 585 GHz compact range along with measurement examples are presented in this paper.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1993
- Accession Number
- ADA461718
Entities
People
- Jerry Waldman
- M. J. Coulombe
- R. H. Giles
- T. Ferdinand
- T. Horgan
Organizations
- University of Massachusetts Lowell