A frequency doubler for 200 GHz with a planar Schottky varactor |
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| Authors: | Jyrki T Louhi and Antti V R?is?nen |
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| Institution: | (1) Radio Laboratory, Helsinki University of Technology, P.O. Box 3000, FIN-02015 HUT, Finland |
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| Abstract: | A frequency doubler for 200 GHz utilising a planar surface channel Schottky varactor was designed, constructed and tested.
The doubler employes novel split-waveguide mount design with two sliding backshorts at both input and output waveguides. The
theoretical maximum efficiency of the doubler is 44.0 % with input power level of 32 mW and the maximum output power is 16.5
mW with input power level of 50 mW. The measured maximum efficiency of the doubler was 7.1 % and the maximum output power
was 2.6 mW |
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