Accession Number:

ADA461718

Title:

A 585 GHZ Compact Range for Scale-Model RCS Measurements

Descriptive Note:

Research paper

Corporate Author:

MASSACHUSETTS UNIV LOWELL SUBMILLIMETER-WAVE TECH LAB

Report Date:

1993-10-01

Pagination or Media Count:

7.0

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.

Subject Categories:

  • Electrical and Electronic Equipment
  • Lasers and Masers
  • Test Facilities, Equipment and Methods
  • Active and Passive Radar Detection and Equipment
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE