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Progress on a Fixed Tuned Waveguide Receiver Using a Series-Parallel Array of SIS Junctions

Halverson, Nils W. and Carlstrom, John E. and Woody, David P. and LeDuc, H. G. and Stern, Jeffrey A. (1993) Progress on a Fixed Tuned Waveguide Receiver Using a Series-Parallel Array of SIS Junctions. In: Proceedings of the Fourth International Symposium on Space Terahertz Technology. NASA Center for Space Terahertz Technology , pp. 73-17.

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We are developing a 200 - 300 GHz receiver that incorporates multiple SIS junctions in a "series-parallel" configuration to achieve broadband impedance matching. At RF frequencies the junctions appear in series through capacitors, and at DC and IF frequencies they appear in parallel through inductors, so that the junctions are impedance matched to both the waveguide and the IF amplifier. Using a single fixed backshort and a full height waveguide, the receiver is designed to have a bandwidth of 100 GHz in the 230 GHz band. A similar design has been tested at frequencies around 100 GHz with excellent results by Shitov et al. (1991) and Vystavkin et al. (1993). Although our initial receiver is designed operate in the 200 - 300 GHz band, the design may be readily scaled to higher frequencies. In this paper we discuss computer and scale modeling of the device, fabrication, and preliminary test results.

Item Type:Book Section
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Carlstrom, John E.0000-0002-2044-7665
Group:Owens Valley Radio Observatory (OVRO)
Record Number:CaltechAUTHORS:20190219-120219409
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:92979
Deposited By: Joy Painter
Deposited On:19 Feb 2019 22:08
Last Modified:03 Oct 2019 20:50

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