24 September 2012 Electromagnetic design for SuperSpec: a lithographically-patterned millimetre-wave spectrograph
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Abstract
SuperSpec is an innovative, fully planar, compact spectrograph for mm/sub-mm astronomy. SuperSpec is based on a superconducting filter-bank consisting of a series of planar half-wavelength filters to divide up the incoming, broadband radiation. The power in each filter is then coupled into titanium nitride lumped element kinetic inductance detectors, facilitating the read out of a large number of filter elements. We will present electromagnetic simulations of the different components that will make up an R = 700 prototype instrument. Based on these simulations, we discuss optimisation of the coupling between the antenna, transmission line, filters and detectors.
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P. S. Barry, E. Shirokoff, A. Kovács, T. J. Reck, S. Hailey-Dunsheath, C. M. McKenney, L. J. Swenson, M. I. Hollister, H. G. Leduc, S. Doyle, R. O'Brient, N. Llombart, D. Marrone, G. Chattopadhyay, P. K. Day, S. Padin, C. M. Bradford, P. D. Mauskopf, J. Zmuidzinas, "Electromagnetic design for SuperSpec: a lithographically-patterned millimetre-wave spectrograph", Proc. SPIE 8452, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI, 84522F (24 September 2012); doi: 10.1117/12.927089; https://doi.org/10.1117/12.927089
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