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Journal of Advanced Science

Integrated superconducting microcircuits for mm wave receivers and digital devices.

An. B. Ermakov, V. K. Kaplunenko, M. Khabipov, V. P. Koshelets, Sergey Kovtonyuk, S. V. Shchukin, S. V. Shitov, Alexander N. Vystavkin

Published Jan 1, 1991• 0 citations
Publisher

Abstract

The results of experimental investigation of the integrated superconducting microcircuits for
DOI
10.2978/jsas.3.105

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SUPERCONDUCTING INTEGRATED RECEIVER

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A Superconducting Integrated Receiver (SIR) [1, 2] was proposed more than 10 years ago and finally has been developed for practical applications [3]. A SIR comprises in one chip (size of 4 mm*4 mm*0.5 mm) a low-noise SIS mixer with quasioptical antenna, an flux-flow oscillator (FFO) [4] acting as a Local Oscillator (LO) and a second SIS harmonic mixer (HM) for the FFO phase locking, see Fig. 1. All components of the SIR microcircuits are fabricated in a high quality Nb-AlN/NbN-Nb tri-layer on a Si substrate [5]. The receiver chip is placed on the flat back surface of the silicon lens, forming an integrated lens-antenna. Light weight and low power consumption combined with nearly quantum limited sensitivity and a wide tuning range of the FFO make SIR a perfect candidate for many practical applications. In particular we have developed integrated receiver for novel balloon borne instrument TELIS (Terahertz Limb Sounder) [6]. TELIS is a collaborative European project to build a three-channel heterodyne balloon-based spectrometer for measuring a variety of the stratosphere constituents.

•Jan 1, 2009•0 citations
The results of development and investigations of ultra-low-noise waveguide and quasioptical receivers of millimeter wave band region based on SIS mixers are presented. The possible cryogenic components of millimeter wave band receivers based on SIS junctions such as dc SQUID IF amplifiers, SIS noise sources, cooled ferrite phase-shifters-modulators, superconducting mm-wave local oscillators, superconducting analog-to-digital converters were designed, produced and experimentally studied. The prospects of creation the entirely superconducting integrated receiving circuits containing all mentioned above superconducting components are discussed.
The concept of a fully integrated superconducting receiver looks very attractive for sub-mm space astronomy where low weight, power consumption and volume are required. The possibility to integrate on a few chips the different planar components: a SIS mixer, a superconducting local oscillator (LO), an intermediate frequency amplifier followed by superconducting circuits for digitizing and processing of down converted signals, is discussed. A first implementation of a real integrated quasioptical receiver for frequencies up to 500 GHz is described. The one-chip receiver comprises a double dipole antenna, parallel biased SIS array mixer and Josephson Flux Flow Oscillator (FFO) with matching circuits. The results of extensive investigations of the integrated receiver as well as design and investigation of novel superconducting elements are presented.>
A Superconducting Integrated Receiver (SIR) [1, 2] was proposed more than 10 years ago and finally has been developed for practical applications [3]. A SIR comprises in one chip (size of 4 mm*4 mm*0.5 mm) a low-noise SIS mixer with quasioptical antenna, an flux-flow oscillator (FFO) [4] acting as a Local Oscillator (LO) and a second SIS harmonic mixer (HM) for the FFO phase locking, see Fig. 1. All components of the SIR microcircuits are fabricated in a high quality Nb-AlN/NbN-Nb tri-layer on a Si substrate [5]. The receiver chip is placed on the flat back surface of the silicon lens, forming an integrated lens-antenna. Light weight and low power consumption combined with nearly quantum limited sensitivity and a wide tuning range of the FFO make SIR a perfect candidate for many practical applications. In particular we have developed integrated receiver for novel balloon borne instrument TELIS (Terahertz Limb Sounder) [6]. TELIS is a collaborative European project to build a three-channel heterodyne balloon-based spectrometer for measuring a variety of the stratosphere constituents.