Patent ID: 8054142
Filing Date: 2011-11-08
Classification: H01P

Abstract:
1. A high frequency device comprising: a plurality of rectangular waveguide tubes that transmit high frequency signals and have different line lengths in a longitudinal direction thereof, in which the high frequency signals are transmitted such that a phase relationship between the high frequency signals at input terminals of the plurality of rectangular waveguide tubes is maintained even at output terminals of the plurality of rectangular waveguide tubes, the high frequency device, wherein: each of the rectangular waveguide tubes has a waveguide passage, the waveguide passages corresponding to the rectangular waveguide tubes are formed separately on an identical plane, each of the rectangular waveguide tubes has a rectangular section cut perpendicularly to the longitudinal direction of the waveguide tube, the rectangular section consisting of a long-side edge and a short side edge, a length of the long-side edge and a length of the short-side edge being defined as a long-side length and a short-side length, respectively, each of the long-side lengths of the plurality of rectangular waveguide tubes is set based on a line length of each rectangular waveguide tube such that the long-side length is set to be longer when the line length becomes shorter so as to allow a guide wavelength of the high frequency signal in the waveguide tube to be shorter.