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An extremely wide bandwidth, low-noise sis heterodyne receiver design for millimeter and submillimeter observations
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Hu, Robert Blain, Andrew Sumner, Matthew LeDuc, H. G. Zmuidzinas Sr., Jonas Harris, Andrew Rice, Frank Weinreb, Sander |
| Copyright Year | 2002 |
| Description | Millimeter and submillimeter heterodyne receivers using state-of-the-art SIS detectors are capable of extremely large instantaneous bandwidths with noise temperatures within a few Kelvin of the quantum limit. We present the design for a broadband, sensitive, heterodyne spectrometer under development for the Caltech Submillimeter Observatory (CSO). The 180-300 GHz double-sideband design uses a single SIS device excited by a full bandwidth, fixed-tuned waveguide probe on a silicon substrate. The IF output frequency (limited by the MMIC low noise IF preamplifier) is 6-18 GHz, providing an instantaneous RF bandwidth of 24 GHz (double-sideband). The SIS mixer conversion loss should be no more than 1-2 dB with mixer noise temperatures across the band within 10 K of the quantum limit. The single-sideband receiver noise temperature goal is 70 K. The wide instantaneous bandwidth and low noise will result in an instrument capable of a variety of important astrophysical observations beyond the capabilities of current instruments. Lab testing of the receiver will begin in the summer of 2002, and the first use on the CSO should occur in the spring of 2003. |
| File Size | 397769 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20020050795 |
| Archival Resource Key | ark:/13960/t2b906w72 |
| Language | English |
| Publisher Date | 2002-01-01 |
| Access Restriction | Open |
| Subject Keyword | Electronics And Electrical Engineering Sis Superconductors Broadband Mixing Circuits Heterodyning Millimeter Waves Submillimeter Waves Radio Receivers Noise Temperature Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
