Accession Number : ADD004350

Title :   Multibeam Adaptive Array.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Provencher,Joseph H

Report Date : 28 Jun 1977

Pagination or Media Count : 6

Abstract : An antenna system utilizing the multibeam advantages of the Butler matrix to achieve beam steering with the additional capability of placing nulls in the direction of undesired radiation. The system comprises essentially a Butler matrix with an adaptive circuit interposed between each of the antenna elements and a corresponding one of the hybrid matrices of the Butler matrix. Switch means are also provided for separating the transmit and receive functions. (Author)

Descriptors :   *Patents, *Beam steering, *Multiple beam antennas, *Antenna arrays, Adaptive systems, Matrices(Circuits), Transmit receive tubes, Electronic switches, Bandpass filters, Limiters, Feedback, Nulls(Amplitude), Phase shift circuits

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE