| 摘要 |
PROBLEM TO BE SOLVED: To provide a connection structure between a nonradioactive dielectric line NRD guide and a dielectric waveguide by which transmission with a small loss is attained even for a millimeter wave band of >=30 GHz. SOLUTION: The connection structure connects an NRD guide A formed by placing a dielectric line 3 between 1st and 2nd flat conductors 1, 2 to a dielectric waveguide B formed by filling a dielectric material in a conductor pipe, an open hole 4 is made for the conductor plate 1 at a position at which an electric field of a standing wave in the LSM mode is maximized in the NRD guide A, the open hole 4 and an open termination 5a of the dielectric waveguide B are connected or an open hole is formed for a side wall at a position placed from an end 5b of the dielectric waveguide B by 1/2 wavelength with respect to the waveguide wavelength and the open hole 4 of the NRD guide A and the open hole of the dielectric waveguide B are connected. |
