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