Patent ID: 7369011
Filing Date: 2008-05-06
Classification: H01P

Abstract:
1. A high order mode electromagnetic wave coupler comprising: an electromagnetic wave power divider having a Y-shaped bifurcated waveguides for at least one order combination dividing a wave to proportional distributing waves, the Y-shaped bifurcated waveguide having a rectangular waveguide as an input end thereof, an opposite end thereof being split into two rectangular waveguides, said Y-shaped bifurcated waveguides having a slightly tapered section and a curved waveguide connected therebetween, a last order Y-shaped bifurcated waveguide of the Y-shaped bifurcated waveguides being connected to the curved waveguide to distribute the waves to a position with a suitable angle so that the electromagnetic wave has a symmetrical magnitude after passing through said power divider; and a mode-converter having a main waveguide with corresponding coupling structures on a sidewall thereof, the electromagnetic wave being coupled by the two rectangular waveguides that are connected to the curved waveguide into a higher order mode wave.