Input and output combined structure for dielectric-filled waveguide resonator

Abstract

Disclosed is an input / output coupling structure for a dielectric waveguide resonator to be mounted on a printed circuit board, which comprises; a region defined in the printed circuit board and surrounded by a first conductive film formed on the front surface of the printed circuit board and connected to a microstrip line on the printed circuit board, a second conductive film formed on the back surface of the printed circuit board, and a conductive wall connecting the respective peripheries of the first and second conductive films; a first slot formed in the front surface of the region; and a second slot formed in a surface of the dielectric waveguide resonator which is disposed to be opposed to the region of the printed circuit board. The first and second slots are adapted to be disposed in opposed relation to one another. The coupling structure can achieve the connection between a dielectric waveguide resonator and a microstrip line without forming any input / output electrode on the resonator, to facilitate the application of the dielectric waveguide resonator to an electronic circuit even if it is intended to be used in millimetric-wave band.

Description

technical field [0001] The invention relates to an input-output combination structure of a microwave transmission line of a printed substrate and a dielectric waveguide resonator, which combines the TEM (transverse electromagnetic) mode of the microwave transmission line with the TE (transverse electric) mode of the dielectric waveguide resonator for mutual conversion Combine structure. Background technique [0002] [Patent Document] Special Opening 2002-208806 [0003] [Non-patented literature] Dominic Deslandes and Ke Wu, Integrated Microstrip and Rectangular Waveguide in Planar Form, TEEE Microwave and Wireless Components Letters, Vol.11, No.2, 2001 [0004] Dielectric waveguide resonators and dielectric filters combining multiples thereof are components of low-loss circuit components in the microwave and millimeter wave bands. On the other hand, widely used as signal lines of printed substrates for electronic circuits are microwave transmission lines or coplanar lines....

AI Technical Summary

Problems solved by technology

However, since the portion of the resonator in the millimeter wave band is very small, it is extremely difficult to form the input and output electrodes for connection with the microwave transmission line on the surface of the dielectric

Even if very tiny electrodes can be temporarily formed on the surface of the dielectric, it is difficult to reliably connect to the microwave transmission line and is not suitable for mass production, so it becomes an important reason that hinders the use of dielectric waveguide resonators in electronic circuits

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