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220-320 GHz Harmonic Mixer for a Full Band Sweep Vector Network Analyzer.
220-320 GHz Harmonic Mixer for a Full Band Sweep Vector Network Analyzer.
- Source :
- International Journal of Infrared & Millimeter Waves; Nov2000, Vol. 21 Issue 11, p1777-1786, 10p
- Publication Year :
- 2000
-
Abstract
- This paper presents the design and characterization of a fixed tuned 220-320 GHz harmonic mixer employing commercial Schottky beam lead diodes in an antiparallel configuration. A diplexer provides distinct ports and matching for the subharmonic LO (26-40GHz) and the IF (20 MHz). The conversion loss was measured using a Gunn + tripler or quadrupler source calibrated with an absolute bolometer. We have built a 220-320 GHz full band sweep Vector Network Analyzer (VNA) using two WR3 waveguide couplers and three identical harmonic mixers (transmitter, reference, and receiver) pumped by two synthesizers (13-20GHz) followed by active doublers. The available dynamic range is 60 dBc/Hz over most of the band. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01959271
- Volume :
- 21
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- International Journal of Infrared & Millimeter Waves
- Publication Type :
- Academic Journal
- Accession number :
- 50184577
- Full Text :
- https://doi.org/10.1023/A:1006775617789