Abstract
The design and performance of a subharmonically pumped (SHP) 557-GHz mixer driven by a solid-state local oscillator (LO) are reported. Whisker contacts are not required as both the mixer and LO utilize planar Schottky devices. A measured mixer noise temperature of 2100-K double sideband (DSB) with a conversion loss of 8.9 dB has been achieved at room temperature. The mixer exhibits broad intermediate frequency (IF) bandwidth with measured DSB noise temperatures below 3400 K in the band from 1.5 to 17 GHz. An external 6-18-GHz amplifier has been added to the output of the mixer, and measured receiver noise temperatures below 7300 K have been measured across the IF band. The results are believed to represent state-of-the-art performance for a room-temperature broad-band solid-state receiver at this frequency.
| Original language | English |
|---|---|
| Pages (from-to) | 232-234 |
| Number of pages | 3 |
| Journal | IEEE Microwave and Guided Wave Letters |
| Volume | 8 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1998 Jun |
| Externally published | Yes |
Bibliographical note
Funding Information:Manuscript received February 20, 1998. This work was supported by the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.
Keywords
- Planar
- Receiver
- Schottky diode
- Subharmonic mixer
ASJC Scopus subject areas
- General Engineering
- General Physics and Astronomy