ISSTT Proceedings

ISSTT Proceedings

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KOSMA's 490/810 GHz Array Receiver

Authors:
U. U. Graf, S. Heyminck, E. A. Michael, S. Stanko
Abstract:
We describe the frontend design of KOSMA's new multi frequency SIS array receiver, which is currently being built to be used at our submillimeter telescope. The receiver consists of two 2×4 mixer arrays. One array operates at a frequency of 490 GHz, the other one at 810 GHz. We can thus simultaneously observe eight spatial positions in two frequencies. After passing through a K—mirror type image rotator, the two frequencies are separated by polarization and individually combined with their local oscillators (L0s), using Martin--Puplett diplexers. Splitting of the LOs is performed with a new type of phase grating, the collimating Fourier grating.
Categories:
Receivers
Year:
2001
Session:
13
Full-text:
Download a PDF of this paper.
Page Number(s):
553-562