Multifrequency notch filter for sub-THz applications based on photonic bandgaps in corrugated circular waveguides

D Wagner,W A Bongers,W Kasparek,F Leuterer,F Monaco,M Munich,H Schutz,J Stober, M Thumm, H V D Brand

Infrared, Millimeter, and Terahertz Waves（2013）

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摘要

Sensitive millimeter wave diagnostics need often to be protected against unwanted radiation like, for example, stray radiation from high power Electron Cyclotron Resonance Heating applied in nuclear fusion. A notch filter based on a waveguide Bragg reflector (photonic bandgap) can provide several stop bands of defined width within up to two standard waveguide frequency bands.

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关键词

notch filters,optical waveguide filters,optical waveguides,photonic band gap,corrugated circular waveguides,high power electron cyclotron resonance heating,multifrequency notch filter,nuclear fusion,photonic bandgap,sensitive millimeter wave diagnostics,stray radiation,subthz applications,waveguide bragg reflector

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