A dielectric rod waveguide coupled with metal rectangular waveguide |
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| Authors: | Y Yamamoto K Fujisawa T Takemura and S Kita |
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| Institution: | (1) Department of Electrical Engineering and Electronics, Faculty of Engineering, Osaka Industrial University, Daito, 574 Osaka, JAPAN;(2) Department of Electrical Engineering, Faculty of Engineering Science, Osaka University, Toyonaka, 560 Osaka, JAPAN |
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| Abstract: | Measurements have been done in the millimeter wave region on a composite waveguide which comprises a dielectric rod waveguide connecting two metal rectangular waveguides. Such a waveguide has been used by us in a Josephson harmonic mixer installed in a small metal cryostat, to prevent the thermal invasion from outside environment and to transmit both signal and LO waves with small losses. The measured transmission loss, that is caused mainly by the coupling loss between metal rectangular waveguides (TE10 mode) and a dielectric rod waveguide (HE11 mode), has been less than 2dB in the frequency range of 52–104 GHz. |
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| Keywords: | dielectric rod waveguide near mm wave transmission HE11 mode |
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