2004 · 22 citations · 11 references
EngineeringElectrical EngineeringAnalog ElectronicsMicroelectronicsMicrowave EngineeringHigh-frequency Semiconductor DevicesMicrowave AmplifiersMicrowave Integrated CircuitsMillimeter-wave CommunicationsReceiver SystemsUltra-wideband CommunicationIntegrated Circuit MixersMixersMixers Noise AnalysisMonolithic Microwave Integrated Circuit MixersNoise TemperatureUltra-wideband ReceiversWideband Receiver DesignWideband Receivers
Abstract- This paper describes an 84-116 GHz Nb/Al-oxide/Nb SIS mixer with multi-octave IF bandwidth and quantum-limited sensitivity. The mixer can be integrated with a three-stage 4-12 GHz HFET preamplifier or fitted with a coaxial connector for operation with an external isolator and IF amplifier. An 84-116 GHz receiver using the mixer with an integrated 4-12 GHz HFET preamplifier has a double sideband noise temperature of 16-20 K ( 3 to 4 h</kB) over most of the IF band. Analysis of the mixer-preamp using Tucker=s theory shows good agreement with measurements. The mixer is easy to build and is being used as a building block for the Band 3 sideband-separating receivers for the Atacama Large Millimeter Array (ALMA)**. With minor modifications, this mixer design can be scaled to other ALMA bands. I
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Observation of Andreev Reflection Enhanced Shot Noise
P. Dieleman, H. G. Bukkems, T. M. Klapwijk et al. · Physical Review Letters · 1997 · 112 citations · Full text
A 200-300 GHz SIS mixer-preamplifier with 8 GHz IF bandwidth
E. F. Lauria, A. R. Kerr, M.W. Pospieszalski et al. · 2002 · 34 citations