Development of Innovative Millimeter-Wave Broadband Mixers.
Final rept. 24 Mar 80-24 Sep 82,
MICHIGAN UNIV ANN ARBOR ELECTRON PHYSICS LAB
Pagination or Media Count:
The theorectical and experimental characteristics of BARITT and TUNNETT devices for use as millimeter-wave mixers and detectors were investigated. Theoretical calculations of BARITT conversion loss, noise figure, and RF and IF impedence levels were carried out. BARITT device fabrication was studied. Three BARITT structures, useful for frequencies between 35 and 95 GHz were fabricated and tested. BARITT devices were tested as mixers and detectors at 35 and 95 GHz. BARITTs were found to be useful millimeter-wave mixers or detectors. BARITT detector performance is comparable to more conventional detectors with TSS levels of - 48 dB per 1 MHz bandwidth and a dynamic range to 1-dB compression of 40 dB. The BARITT pulse burnout performance is superior to any conventional detector with a pulsed burnout level greater than 45 W. BARITT mixer performance is also comparable to Schottky-barrier mixers with conversion losses of 5 dB and 30 MHz noise figures of 6.8 dB. This performance, coupled with the high burnout level and ease of fabrication, makes the BARITT a useful millimeter-wave device. Author
- Electrical and Electronic Equipment
- Solid State Physics