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Accurate electromagnetic modeling of terahertz detectorsTwin slot antennas coupled to superconducting devices have been developed over the years as single pixel detectors in the terahertz (THz) frequency range for space-based and astronomy applications. Used either for mixing or direct detection, they have been object of several investigations, and are currently being developed for several missions funded or co-funded by NASA. Although they have shown promising performance in terms of noise and sensitivity, so far they have usually also shown a considerable disagreement in terms of performance between calculations and measurements, especially when considering center frequency and bandwidth. In this paper we present a thorough and accurate electromagnetic model of complete detector and we compare the results of calculations with measurements. Starting from a model of the embedding circuit, the effect of all the other elements in the detector in the coupled power have been analyzed. An extensive variety of measured and calculated data, as presented in this paper, demonstrates the effectiveness and reliability of the electromagnetic model at frequencies between 600 GHz and 2.5THz.
Document ID
20060043748
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Focardi, Paolo
McGrath, William R.
Date Acquired
August 23, 2013
Publication Date
September 13, 2004
Subject Category
Electronics And Electrical Engineering
Meeting Information
Meeting: RiNem 2004
Location: Cagliari
Country: Italy
Start Date: September 13, 2004
End Date: September 16, 2004
Distribution Limits
Public
Copyright
Other
Keywords
Hot Electron Bolometer (HEB)
slot antennas
lens antennas

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