Waveguide converter for transmitting input radio wave with proceeding direction thereof changed to waveguide path
AssigneeSharp Kabushiki Kaisha
InventorMakoto Hirota
Life of this patent
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Abstract
A bend portion is provided on the inside of a waveguide main body for bending a proceeding direction of a radio wave from a waveguide on the side of a primary feed horn. The radio wave is transmitted with its proceeding direction changed such that an electric field of the radio wave is parallel with a conversion unit. Further provided on the inside of the waveguide main body is a conversion unit including a microstrip line for converting the radio wave from the bend portion to supply electric power.
Claims11
A waveguide converter for transmitting a radio wave input through a waveguide of a primary feed horn to a microstrip line, comprising changing means for changing a proceeding direction of the input radio wave and coupling the input radio wave with its proceeding direction changed to said microstrip line,
- said changing means changing the direction of the input radio wave so that the direction of the electric field of the input radio wave is parallel with the direction of said microstrip line.
A waveguide inlet having a waveguide main body coupled to a waveguide of a primary feed horn comprising:
- a bend portion formed in the waveguide main body for bending a proceeding direction of a radio wave input from the waveguide of the primary feed horn and for transmitting the radio wave in a changed proceeding direction;
- and
- conversion means having a microstrip line for converting the radio wave transmitted from said bend portion to supply electric power,
- said bend portion bending the radio wave so that the direction of the electric field of the radio wave is parallel with said conversion means.
A waveguide converter for coupling an input radio wave of a waveguide to a microstrip line comprising:
- an inlet port, formed within a main body of the waveguide, for receiving the input radio wave, the microstrip line being mounted within the main body of the waveguide in a direction parallel to the direction of the input radio wave;
- and
- changing means for changing the direction of the input radio wave to couple the input radio wave to the microstrip line, said changing means being formed as a sloped inner portion of the main body of the waveguide.
A method of coupling a radio wave to a microstrip line comprising the steps of:
- inputting the radio wave into an inlet port of a waveguide;
- and
- changing the direction of the input radio wave to couple the radio wave to the microstrip line which is mounted within a main body of the waveguide,
- said step of changing the direction comprising guiding the input radio wave along a sloped inner portion of the main body of the waveguide.
Dependencies are inferred from the claim text.