Accession Number : AD0787868
Title : Microwave Integrated Circuit Steerable Polarizer.
Descriptive Note : Final rept. 21 Nov 72-21 Mar 74.
Corporate Author : SPERRY RAND CORP GAINESVILLE FLA SPERRY MICROWAVE COMPONENTS DIV
Report Date : SEP 1974
Pagination or Media Count : 131
Abstract : The report contains the results of a program to develop and build an electronically steerable MIC linear array with a single MIC receiver front end and the necessary array feed structure. The linear array consisted of four modules in a single housing bolted to a second housing containing four cylindrical waveguide antennas. Phase shifters for beam steering and polarization diversity were tight-coupled meander line, nonreciprocal ferrite structures flux driven to obtain effectively 4-bit operation. A varactor tuned MIC Gunn oscillator was investigated for use as the local oscillator. A new design approach consisting essentially of lumped tuning elements was used. A mathematical model for this approach was generated and computerized. A new design approach in phase shifter flux drivers using standard commercial components was derived. (Modified author abstract)
Descriptors : *Phased arrays, *Steerable antennas, Antenna arrays, Linear arrays, Electronic scanners, Phase shift circuits, Microwave equipment, Integrated circuits, Strip transmission lines, Polarization, Modules(Electronics), Antenna feeds, Microwave oscillators, Gunn diodes, Tuning devices, Varactor diodes, Receivers, Computer programs, FORTRAN
Subject Categories : Electrical and Electronic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE