Subharmonic mixer arrays for millimeter-wave plasma diagnostic applications (abstract)

Journal Article · Wed Jan 01 04:00:00 EST 1997 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.1147596· OSTI ID:451767

Hsia, R P ^[1]; Geck, W R; Domier, C W; Luhmann, Jr, N C ^[2]

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1. Department of Electrical and Computer Engineering, University of California at Davis, Davis, California 95616 (United States)
2. Department of Applied Science, University of California at Davis, Davis, California 95616 (United States)

A novel approach to low cost millimeter- and submillimeter-wave subharmonically pumped mixer arrays is under investigation which combines the high performance of waveguide mounted mixers with the ruggedness of planar arrays. Each mixer consists of local oscillator (LO) and input signal waveguides and a suspended stripline circuit containing both filters and an antiparallel pair of GaAs beam-lead diodes. In array form, the probe couplers built into each mixer allow the LO waveguides to be connected in an end-to-end fashion to form a single waveguide path for optimum use of LO power. Prototype mixers under fabrication are designed for (i) 280 GHz operation using a 140 GHz LO source, and (ii) 100{endash}140 GHZ operation using a 50{endash}70 GHz LO source. Plasma diagnostic application areas include Fourier infrared interferometry/polarimetry and electron cyclotron emission imaging. {copyright} {ital 1997 American Institute of Physics.}

• DOE Contract Number: FG03-95ER54295; W-7405-ENG-48
• OSTI ID: 451767
• Report Number(s): CONF-960543--
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 1 Vol. 68; ISSN RSINAK; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DESIGN
ELECTRON CYCLOTRON-RESONANCE
INTERFEROMETRY
MICROWAVE EQUIPMENT
MIXERS
PLASMA DIAGNOSTICS
POLARIMETRY
WAVEGUIDES