Offset block waveguide coupler
AssigneeThinKom Solutions, Inc.
InventorsShahrokh HASHEMI-YEGANEH, William MILROY
Life of this patent
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Abstract
A waveguide coupler includes a waveguide having a first and a second port, and a slot formed in a broadwall of the waveguide between the first and second ports, the slot centered on the first broadwall. A plurality of shifted waveguide sections are arranged between the first and second ports and extend along a length of the waveguide. A parallel-plate transmission line structure is coupled to the slot, wherein RF signals within one of the waveguide or the parallel-plate transmission line are communicated to the other of the waveguide and the parallel-plate transmission line through the slot.
Claims20
A waveguide coupler, comprising:
- a waveguide including
- i) a first and a second port;
- ii) a first slot formed in a first broadwall of the waveguide between the first and second ports, the first slot centered on the first broadwall;
- iii) a plurality of shifted waveguide sections arranged between the first and second ports and extending along a length of the waveguide;
- and
- a first parallel-plate transmission line structure coupled to the first slot, wherein RF signals within one of the waveguide or the parallel-plate transmission line are communicated to the other of the waveguide or the parallel-plate transmission line through the slot.
A method of launching a desired uniform or non-uniform Radio Frequency (RF) field-distribution from a waveguide into an open parallel-plate transmission line structure, wherein the waveguide is coupled to the parallel-plate transmission line via a continuous slot centered in a broadwall of the waveguide, the method comprising using shifted waveguide sections in the waveguide to perturb the RF field distribution in such a way as to couple RF energy via the continuous slot in order to create a desired e-field distribution in the parallel-plate section.
Dependencies are inferred from the claim text.