Accession Number : ADA190213
Title : Monolithic Phase Shifter Study.
Descriptive Note : Annual technical rept. Nov 86-Oct 87,
Corporate Author : TEXAS UNIV AT AUSTIN MICROWAVE LAB
Personal Author(s) : Neikirk, D P ; Itoh, T
PDF Url : ADA190213
Report Date : 25 Nov 1987
Pagination or Media Count : 30
Abstract : Modeling and preliminary testing of a monolithic coplanar waveguide (CPW) phase shifter using both optical and Schottky-contact control techniques has been performed. Simulation work on a periodically illuminated structure has been completed, showing that some improvement in performance may be possible, although with a reduction in frequency bandwidth. CPW transmission lines have been fabricated on semi-insulating GaAs, on heavily doped epi GaAs, and on an A1GaAs/GaAs heterostructure, and initial electrical characterization has been performed. Optically controlled phase shift has been obtained with the heterostructure device, and Schottky-bias controlled behavior has been seen with the epi sample.
Descriptors : *MONOLITHIC STRUCTURES(ELECTRONICS), *PHASE SHIFT CIRCUITS, BANDWIDTH, CONTROL, FREQUENCY, ILLUMINATION, METHODOLOGY, OPTICS, SIMULATION
Subject Categories : Electrical and Electronic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE