Tunable Double-Sapphire-Loaded Microwave Cavity with High-Q Factor(Microwaves, Millimeter-Waves)
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概要
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A frequency-tuning method in the microwave region, which maintains a high unloaded Q-factor, was demonstrated using a double-sapphire-loaded cavity which operates on the Whispering Gallery mode, WGH_<9,1,0>. Two adjacent nominally identical sapphire cylinders were positioned in a copper cavity and tuned by changing their relative coupling. A frequency tuning range of 85 MHz and a maximum unloaded Q-factor of 1.3 × 10^5 was experimentally measured at room temperature. This is only 13% less than the single resonator Q-factor, which is a small compromise to pay for the increased tuning capacity.
- 社団法人電子情報通信学会の論文
- 2003-07-01
著者
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Ikegami T
Aist
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Ikegami Takeshi
National Metrology Institute Of Japan (nmij)/national Institute Of Advanced Industrial Science And T
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Ohshima Shin-ichi
National Metology Institute Of Japan
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Ohshima Shin-ichi
Time Standards Section Time And Freqency Division National Metrololgy Institute Of Japan Aist
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Watabe Ken-ichi
National Metology Institute Of Japan
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HARTNETT John
National Metology Institute of Japan
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HARTNETT John
School of Physics, The University of Western Australia
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Ikegami Takeshi
Time Standards Section Time And Freqency Division National Metrololgy Institute Of Japan Aist
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Ikegami Takeshi
National Metology Institute Of Japan/aist
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