ISSTT Proceedings

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An Integrated Array Antenna for a TES Imaging Radiometer: General Concept and Simulations

Authors:
Sergey V. Shitov, Alexander N. Vystavkin
Abstract:
We are developing an imaging radiometer based on concept of direct connection of superconducting TES detector to a planar antenna. To control a large-dimension imaging array, multiplexing procedure via method of projection is suggested; the antenna array and the image are rotating reciprocally in their common plane during the signal integration process. Each crossed double-slot antenna feeds two TES detectors integrated in the central part of the antenna via a combination of microstrip and coplanar transmission lines. The instantaneous bandwidth of 50% is estimated for 5-[Omega] TES detector tuned at 600 GHz. The coupling circuit with overlapping RF feed-lines demonstrated cross-talk interference below -30 dB. Infinite expansion of the array is possible while the number of output leads can be minimized to N + M for N by M array; the continuous signal integration is available for all pixels. The design and analysis are performed using commercial EM-software.
Categories:
Detectors, Poster Session
Year:
2005
Session:
5B
Full-text:
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Page Number(s):
122-125