Accession Number : AD0723520

Title :   Analysis of Interleaved Arrays of Waveguide Elements.

Descriptive Note : Interim rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Hsiao,James K.

Report Date : 16 APR 1971

Pagination or Media Count : 30

Abstract : Multiple interleaved arrays of waveguide radiators have been analyzed at different frequencies. The approach is a generalization of the analysis of an infinite array at a single frequency. The presence of the low-frequency elements affects the radiation characteristics of the high-frequency elements and generates grating lobes which do not appear in a single-frequency array. Furthermore, power is coupled into the low-frequency waveguides when the high-frequency elements are excited. Numerical examples are presented which show that these effects are not severe. The analytical expressions reduce correctly to the single-frequency array case and satisfy the principle of energy conservation. (Author)

Descriptors :   (*WAVEGUIDES, PHASED ARRAYS), (*SEARCH RADAR, SHIPBOARD), ADMITTANCE, ANTENNA RADIATION PATTERNS, MATHEMATICAL ANALYSIS

Subject Categories : Electrical and Electronic Equipment
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE