Wide-band superconductive Chirp filters

Technical Report · Sat Apr 01 00:00:00 EST 1989

OSTI ID:5419488

DiIorio, M S; Withers, R S; Anderson, A C

Chirp filters are described that consist of miniature tapped superconductive stripline. The stripline consists of 40-micron-wide niobium thin films in a spiral pattern on 125-micron-thick silicon wafers, and tapping is effected by backward-wave couplers between neighboring lines. Sophisticated fabrication and packaging techniques have led to a now mature technology. Devices with 2.6-GHz bandwidth and time-bandwidth products of 98 are routinely fabricated that exhibit amplitude errors within a few tenths of a decibel and phase errors within a fractions of a degree of theoretical. In pulse-compression tests, matched amplitude-weighted devices yield peak relative side-lobe levels of -32 dB.

• Research Organization: Massachusetts Inst. of Tech., Lexington, MA (USA). Lincoln Lab.
• OSTI ID: 5419488
• Report Number(s): AD-A-209960/4/XAB; JA-6082
• Resource Relation: Other Information: Pub. in IEEE Transactions on Microwave Theory and Techniques, Vol. 47, No. 4, 706-710(Apr 1989)
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
42 ENGINEERING
COMMUNICATIONS
ELECTROMAGNETIC FILTERS
SQUID DEVICES
AMPLITUDES
BACKWARD WAVE TUBES
MICROWAVE EQUIPMENT
PULSE SHAPERS
SUPERCONDUCTIVITY
TESTING
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON TUBES
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
EQUIPMENT
FILTERS
FLUXMETERS
MEASURING INSTRUMENTS
MICROWAVE TUBES
PHYSICAL PROPERTIES
PULSE CIRCUITS
SIGNAL CONDITIONERS
SUPERCONDUCTING DEVICES
420201* - Engineering- Cryogenic Equipment & Devices
420800 - Engineering- Electronic Circuits & Devices- (-1989)