Parallel biased SIS-arrays for mm wave mixers; Main ideas and experimental verification

Conference · Fri Mar 01 04:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:5690532

Ermakov, A B; Koshelets, V P; Kovtonyuk, S A; Shitov, S V ^[1]

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1. Inst. of Radio Engineering and Electronics, USSR Academy of Sciences, Marx Avenue, 18, Moscow, GSP-3 (SU)

This paper reports on parallel biased SIS- arrays for mm ware mixers. The possibility to overcome the main drawbacks of the traditional series arrays by parallel connection of the SIS junctions for dc and IF have been experimentally demonstrated. The proposed mixing elements (i) avoid the influence of the junction nonuniformity in the array; (ii) provide the optimal matching on both rf input and IF output; (iii) tune out junction capacitance. The best values T{sub r} (SSB) as low as 5 K have been measured on the mixer cold input flange in the 45-55 GHz bandwidth at ambient temperature 4.2 K. The mixer gain up to 10 dB was obtained, the gain value were limited by bias stability at very high or even negative array output impedance. The experimental receiver noise temperature (SSB) less than 20 K have been achieved referred to the room temperature horn.

• OSTI ID: 5690532
• Report Number(s): CONF-900944--
• Conference Information: Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 27:2
• Country of Publication: United States
• Language: English

Related Subjects

665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AMPLIFICATION
CHALCOGENIDES
DEMONSTRATION PROGRAMS
DISPERSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
GAIN
JUNCTIONS
METALS
MIXTURES
NIOBIUM
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POWER TRANSMISSION
RF SYSTEMS
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTIVITY
TRANSITION ELEMENTS