Accession Number : AD0749237

Title :   A Superconductive Tunable Filter with Broad Tuning Range.

Descriptive Note : Research and development technical rept.,

Corporate Author : ARMY ELECTRONICS COMMAND FORT MONMOUTH N J

Personal Author(s) : Vig,John R. ; Gikow,Emanual

Report Date : AUG 1972

Pagination or Media Count : 21

Abstract : The near zero resistance of superconductors makes it possible to construct resonant circuits with very low losses. Such high Q tunable circuits can provide low noise, narrow band, wide dynamic range tuners for communications equipments. The tuner discussed is a superconductive, tunable, parallel L-C resonant circuit. The inductance and capacitance are varied simultaneously. A tuning range of 17:1 in frequency has been achieved within a single band - from 1.3 MHz to 23 MHz. Bandwidth can be controlled by coupling control. Q's in excess of 105 were measured. (Author)

Descriptors :   (*ELECTRIC FILTERS, SUPERCONDUCTIVITY), (*TUNING DEVICES, SUPERCONDUCTIVITY), MICROWAVE EQUIPMENT, CIRCUITS, COMMUNICATION EQUIPMENT, BROADBAND

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE