TY - JOUR
T1 - 105 GHz Notch Filter Design for Collective Thomson Scattering
AU - Furtula, Vedran
AU - Michelsen, Poul
AU - Leipold, Frank
AU - Johansen, T.
AU - Korsholm, Søren Bang
AU - Meo, Fernando
AU - Moseev, Dmitry
AU - Nielsen, Stefan Kragh
AU - Salewski, Mirko
AU - Stejner Pedersen, Morten
PY - 2011
Y1 - 2011
N2 - A millimeter-wave notch filter with 105-GHz center frequency, >20-GHz passband coverage, and 1-GHz rejection bandwidth has been constructed. The design is based on a fundamental rectangular waveguide with cylindrical cavities coupled by narrow iris gaps, i.e., small elongated holes of negligible thickness. We use numerical simulations to study the sensitivity of the notch filter performance to changes in geometry and in material conductivity within a bandwidth of ±10 GHz. The constructed filter is tested successfully using a vector network analyzer monitoring a total bandwidth of 20 GHz. The typical insertion loss in the passband is
AB - A millimeter-wave notch filter with 105-GHz center frequency, >20-GHz passband coverage, and 1-GHz rejection bandwidth has been constructed. The design is based on a fundamental rectangular waveguide with cylindrical cavities coupled by narrow iris gaps, i.e., small elongated holes of negligible thickness. We use numerical simulations to study the sensitivity of the notch filter performance to changes in geometry and in material conductivity within a bandwidth of ±10 GHz. The constructed filter is tested successfully using a vector network analyzer monitoring a total bandwidth of 20 GHz. The typical insertion loss in the passband is
KW - Fusion energy
KW - Fusionsenergiforskning
KW - Fusionsenergi
U2 - 10.13182/FST11-A11732
DO - 10.13182/FST11-A11732
M3 - Journal article
SN - 1536-1055
VL - 59
SP - 670
EP - 677
JO - Fusion Science and Technology
JF - Fusion Science and Technology
IS - 4
ER -