Author: Chittora, A.
Paper Title Page
WEPAB349 Design of a Circular Waveguide TM01 Mode Launcher with Wire Loop Feed 3517
 
  • A. Chittora
    BITS Pilani, Sancoale, India
 
  In Accelerator technology, RF power couplers are important component to couple RF signal to travelling wave structure. Circular waveguide TM01 mode is one of the symmetric modes, that is suitable to use for RF coupling. TM01 mode launcher is used as an RF coupler in Accelerator technology*. Design of a compact circular waveguide TM01 mode-launcher is presented in this paper. The design is based on the principle of magnetic field coupling between a wire loop and TM01 mode of circular waveguide. The mode launcher exhibits high efficiency and 3.1% bandwidth at 3.2 GHz frequency with both circular and elliptical loop. Performance of the mode launcher is experimentally verified and simulated S-parameters agree with the measured results. The mode launcher is of compact size and is suitable for efficient excitation of TM01 mode in circular waveguide and travelling wave structures. The launcher is also useful for cold testing of high power microwave antennas and Radars.
* M. Forno, "Design of a high power TM01 mode launcher optimized for manufacturing by milling." 2016.
 
poster icon Poster WEPAB349 [1.135 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB349  
About • paper received ※ 19 May 2021       paper accepted ※ 21 June 2021       issue date ※ 20 August 2021  
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