A MAGICTRAC (Microwave Antenna for Whispering-Gallery-Mode Conversion using a Twist Reflector Antenna Converter) design for the MTX (Microwave Tokamak Experiment) transport system

Conference · Sat Sep 01 00:00:00 EDT 1990

OSTI ID:6570534

Makowski, M A ^[1]; Stallard, B W; Byers, J A ^[2]

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1. TRW, Inc., Redondo Beach, CA (USA)
2. Lawrence Livermore National Lab., CA (USA)

A design of a MAGICTRAC (Microwave Antenna for Whispering-Gallery-Mode Conversion using a Twist Reflector Antenna Converter) device is presented for use on the MTX (Microwave Tokamak Experiment) transport system. The MAGICTRAC device, consisting of a mode converting waveguide taper and three metal reflectors, transforms the TE{sub 15,2} circular waveguide mode output of a VARIAN Associates 140 GHz gyrotron into a free-space Gaussian-like beam with >95% efficiency. Dimensions of the MAGICTRAC are chosen to produce a beam matched to the MTX quasi-optical transport system.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6570534
• Report Number(s): UCRL-JC-104815; CONF-901245--1; ON: DE91000807
• Country of Publication: United States
• Language: English

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