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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Rudiger, Ralph, Zimmermann, Peter |
| Copyright Year | 1991 |
| Description | Author affiliation: Radiometer Physics Company GmbH, Bergerwiesenstr. 15, W-5309 Meckenheim, Germany (Rudiger,; Ralph,; Zimmermann, Peter) |
| Abstract | An all solid-state radiometer is described, for detecting the 557 GHz transition of the water molecule in galactic molecular clouds. The radiometer will be mounted in a high altitude balloon, and is the first of several such units for different experiments in the 550-700 GHz range. The key semiconductor elements are a gunn diode and three Schottky-barrier diodes - two varactors and a low-capacitance low-noise varistor. The double-sideband system noise temperature ature is 2000 K over a 1.1-1.7 GHz i.f. band, and 1500 K over 100 MHz at midband. |
| Starting Page | 253 |
| Ending Page | 256 |
| File Size | 183486 |
| Page Count | 4 |
| File Format | |
| DOI | 10.1109/EUMA.1991.336442 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1991-09-09 |
| Publisher Place | Germany |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Solid state circuits Radiometry Semiconductor diodes Schottky diodes Clouds Gunn devices Varactors Varistors Semiconductor device noise Temperature |
| Content Type | Text |
| Resource Type | Article |
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