Accession Number : AD0484491

Title :   SURFACE WAVE BEHAVIOR IN PHASED ARRAYS.

Descriptive Note : Quarterly progress rept. no. 3,

Corporate Author : SYLVANIA ELECTRONIC SYSTEMS-EAST WALTHAM MA

Personal Author(s) : Lechtreck, Lawrence W. ; Parad, Leonard

Report Date : APR 1966

Pagination or Media Count : 37

Abstract : This quarterly report describes mutual coupling measurements, in linearly polarized and in circularly polarized, planar, arrays of coaxial horn antennas. Measured coupling phase delay was found to be linearly proportional to distance suggesting that the mechanism of mutual coupling is a single mode slow wave propagating across the array face at a constant velocity. Each driven antenna element launched a cylindrical wave front expanding across the array face; a driven column launches a wave having a planar phase front similar to the classical Zenneck surface wave.

Descriptors :   *RADAR SCANNING), (*PHASED ARRAYS, ANTENNA RADIATION PATTERNS, HORN ANTENNAS, POLARIZATION, RADOMES, ELECTRIC FIELDS, IMPEDANCE MATCHING, RADAR REFLECTIONS, COUPLED ANTENNAS.

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE