Patent ID: 8680954
Filing Date: 2014-03-25
Classification: H01P,Y10T

Abstract:
1. A waveguide connection structure comprising: a waveguide having a first tubular waveguide path that transmits electromagnetic waves having a predetermined wavelength, and a stub that is formed such that a depth thereof becomes a quarter of the predetermined wavelength, an open end of the stub making internal contact with a contour line, and the contour line being spaced apart from an inner wall part of one end of the first tubular waveguide path in a radially outward direction by only a quarter of the predetermined wavelength; and a connection counterpart having a second waveguide path that forms a surface having the same shape and size as a radial cross section of the first waveguide path and transmits the predetermined wavelength of the electromagnetic waves, and an electrically conductive frame part that can make external contact with an outer circumference of the open end of the stub on an outer side of the second waveguide path and is electrically connected to the second waveguide path, wherein the electrically conductive frame part comprises: vias that make external contact with a position spaced apart from a wall of the second waveguide path in an outward direction by only a quarter of the predetermined wavelength, that are disposed so as to be electrically continuous, and that extend into the connection counterpart; and at least one of inner layer patterns and a planar inner layer pattern that is connected to the vias so as to be electrically equivalent to a metal plane from the wall of the second waveguide path to the vias.