Design and simulation of a broadband, high speed quasioptical beam switch array for moderate pulse reflectometry

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

DOI:https://doi.org/10.1063/1.1147608· OSTI ID:451781

Jiang, F; Zhang, W; Chen, Z ^[1]; Domier, C W ^[2]; Luhmann, N C ^[3]

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

High speed, high on-off contrast ratio switches utilizing beam control grid array technology are under development for use in moderate pulse reflectometry. This approach, which utilizes arrays consisting of hundreds of Shottky varactor diodes embedded within an overmoded wave guide, is expected to generate switching times in the 100{endash}500 ps range with high power handling capabilities. The switches are designed for initial wideband operation in V band (50{endash}75 GHz) operation although they can be operated both at lower and higher frequencies, and are intended for use in a moderate pulse reflectometry system such as used on the RTP tokamak. {copyright} {ital 1997 American Institute of Physics.}

• DOE Contract Number: FG03-95ER54295; W-7405-ENG-48
• OSTI ID: 451781
• Report Number(s): CONF-960543-; ISSN 0034-6748; TRN: 97:006157
• Journal Information: Review of Scientific Instruments, Vol. 68, Issue 1; Conference: 11. annual high-temperature plasma diagnostics conference, Monterey, CA (United States), 12-16 May 1996; Other Information: PBD: Jan 1997
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
THERMONUCLEAR DEVICES
PLASMA DIAGNOSTICS
MICROWAVE EQUIPMENT
PLASMA DENSITY
PULSE TECHNIQUES
REFLECTION
SWITCHING CIRCUITS
WAVEGUIDES
DESIGN
TIME RESOLUTION
SCHOTTKY EFFECT
BOUNDARY LAYERS