Millimeter waveguide to microstrip transition
First Claim
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1. A waveguide to microstrip transition apparatus comprising:
- a waveguide;
a section of microstrip circuit coupled to said waveguide; and
mode filter means connected to said waveguide and extending over a portion of said section of microstrip circuit for preventing spurious modes of propagation beyond said waveguide, said mode filter means comprising a partially enclosed conductive cavity having an opening facing said portion of said section of microstrip circuit, said opening extending over said section of microstrip circuit.
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Abstract
A waveguide to microstrip transition apparatus in which a waveguide coupledo a microstrip circuit is provided with a mode filter for suppressing spurious modes of electromagnetic signal propagation. The mode filter is attached to the end of the waveguide that is coupled to the microstrip circuit and the mode filter extends over a portion of the microstrip circuit.
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Citations
4 Claims
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1. A waveguide to microstrip transition apparatus comprising:
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a waveguide; a section of microstrip circuit coupled to said waveguide; and mode filter means connected to said waveguide and extending over a portion of said section of microstrip circuit for preventing spurious modes of propagation beyond said waveguide, said mode filter means comprising a partially enclosed conductive cavity having an opening facing said portion of said section of microstrip circuit, said opening extending over said section of microstrip circuit. - View Dependent Claims (2, 3, 4)
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Specification