Title :
Bragg reflection band stop filter for ECE on WEGA
Author :
Wagner, D. ; Kasparek, W. ; Leuterer, F. ; Monaco, F. ; Münich, M. ; Schütz, H. ; Stange, T. ; Stober, J. ; Thumm, M.
Author_Institution :
EURATOM-IPP, Max-Planck-Inst. fur Plasmaphysik, Garching, Germany
Abstract :
Notch filters are required to protect sensitive millimeter wave diagnostics in fusion experiments from gyrotron stray radiation in the plasma vessel. A new type of notch filter based on a waveguide Bragg reflector is presented that can provide several defined stop bands in one standard waveguide frequency band.
Keywords :
cyclotron resonance; gyrotrons; notch filters; optical waveguide filters; plasma diagnostics; stellarators; Bragg reflection band stop filter; ECE; Electron Cyclotron Emission; WEGA; fusion experiments; gyrotron stray radiation; millimeter wave diagnostics; notch filters; plasma vessel; waveguide Bragg reflector; Couplings; Filtering theory; Gyrotrons; Millimeter wave technology; Plasmas; Reflection; Resonator filters;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6105143
