Accession Number : AD0821478

Title :   STUDY OF AIRBORNE MILLIMETER RADAR TECHNIQUES.

Descriptive Note : Quarterly rept. no. 4, 21 Jan-21 Apr 67,

Corporate Author : UNITED TECHNOLOGIES CORP NORWALK CT NORDEN DIV

Personal Author(s) : Chanzit, L. ; Kosowsky, L. ; Koester, K. ; Honig, A. ; Cross, J.

Report Date : OCT 1967

Pagination or Media Count : 61

Abstract : A detailed study of the radar return from cables at millimeter wavelengths is continued with the inclusion of realistic antenna patterns. It is shown that for a radar system with a high gain and a low sidelobe antenna, the echo voltage from a cable exhibits an oscillatory behavior when the angle of incidence is varied. The period of the oscillation increases as the beamwidth of the antenna is increased and the null-to-null separation is approximately twice the 3-db beamwidth of the antenna. The irregularities in the lobing pattern are explained by the interference between the response due to main lobes and that due to the side lobes.

Descriptors :   *RADAR SIGNALS, *RADAR CLUTTER, *RADAR EQUIPMENT, *TERRAIN AVOIDANCE, BACKSCATTERING, WIRE, AIRBORNE, RADAR SCANNING, ANTENNA RADIATION PATTERNS, ELECTROMAGNETIC PROPERTIES, EXTREMELY HIGH FREQUENCY, RADAR ANTENNAS, STEERING, MAGNETIC MATERIALS, SEMICONDUCTOR DEVICES, MILLIMETER WAVES, AIRCRAFT ANTENNAS.

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE