A coaxial ring-sidearm power extraction design

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We report a successful klystron power extraction design, in which a TEM coaxial mode is transmitted into TE10 mode of a WR90 rectangular waveguide at 11.42 GHz, with very little TEM reflection and almost vanishing asymmetric (TEM {r_arrow} TE11, or monopole to dipole) reflectance. Our coupler consists of a ring (disk) around the coaxial waveguide, and a coax-WR90 sidearm junction. The methods used in the design are numerical simulation, performed on the MAFIA3 T3 time- domain module and on the High Frequency Structure Simulator, and analytical treatment to guide the numerical runs. The demerit parameters (dipole reflectance and TEM reflection) ... continued below

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10 p.

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Ben-Menahem, S. & Yu, D. January 1, 1996.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 48 times . More information about this article can be viewed below.

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  • Ben-Menahem, S. Duly Research, Inc., Rancho Palos Verdes, CA (United States)
  • Yu, D. Stanford Linear Accelerator Center, Menlo Park, CA (United States)

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Description

We report a successful klystron power extraction design, in which a TEM coaxial mode is transmitted into TE10 mode of a WR90 rectangular waveguide at 11.42 GHz, with very little TEM reflection and almost vanishing asymmetric (TEM {r_arrow} TE11, or monopole to dipole) reflectance. Our coupler consists of a ring (disk) around the coaxial waveguide, and a coax-WR90 sidearm junction. The methods used in the design are numerical simulation, performed on the MAFIA3 T3 time- domain module and on the High Frequency Structure Simulator, and analytical treatment to guide the numerical runs. The demerit parameters (dipole reflectance and TEM reflection) can be reduced as much as desired (to zero in principle), the only limitation being computer run time and memory. Results are accurate to a few percent.

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10 p.

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INIS; OSTI as DE96005634

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  • Pulsed radio frequency sources for linear colliders, Long Island, NY (United States), 2-7 Oct 1994

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  • Other: DE96005634
  • Report No.: SLAC-PUB--6724
  • Report No.: CONF-9410218--11
  • Grant Number: AC03-76SF00515
  • Office of Scientific & Technical Information Report Number: 205148
  • Archival Resource Key: ark:/67531/metadc663944

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • Aug. 9, 2016, 11:52 a.m.

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Ben-Menahem, S. & Yu, D. A coaxial ring-sidearm power extraction design, article, January 1, 1996; Menlo Park, California. (digital.library.unt.edu/ark:/67531/metadc663944/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.