| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize a structure for mounting a dielectric waveguide on a printed circuit board as compared with a conventional structure while maintaining effect on displacement due to non-contact coupling at a low level. SOLUTION: A transition structure includes: the dielectric waveguide composed of a dielectric block of which the entire surface, except a signal input/output unit, is covered with a conductive film and having a slot for exposing dielectric on a bottom; a microstrip having an opened and terminated tip which is opposed to the slot of the dielectric waveguide through an interval; and a cavity in which the slot of the dielectric waveguide is composed of a conductor wall surrounding the periphery of the tip of the microstrip except a portion, that is pulled out so as to be connected to an external circuit, of the microstrip. COPYRIGHT: (C)2010,JPO&INPIT
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