Waveguide hybrid couplers
AssigneeLockheed Martin Corpora Tion
InventorsJason Stewart Wrigley, Mark Winebrand
Life of this patent
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Abstract
A TE20 launch guidance waveguide hybrid coupler includes a waveguide body, a cavity, a plurality of ports, and a bend along the H-plane. The waveguide body includes a hybrid center portion which is disposed between and is in direct communication with the plurality of ports. The bend along the H-Plane is defined within the hybrid center portion, assists in the launching of the TE20 mode, and results in typically half the axial ratio and mass when compared to traditional hybrid approaches.
Claims16
A waveguide hybrid coupler, comprising:
- a waveguide body having a hybrid center portion and defining an H-Plane;
- a cavity defined within the waveguide body;
- a plurality of ports defined within the waveguide body, wherein the hybrid center portion is disposed between the plurality of ports and each of the ports of the plurality of ports are in communication with the cavity;
- a bend along the H-Plane defined within the hybrid center portion, wherein the bend is configured to generate a TE20 mode;
- and
- a septum defined within the waveguide body, wherein the septum is recessed from the hybrid center portion, wherein the septum comprises a chamfered edge.
A waveguide hybrid coupler, comprising:
- a waveguide body having a hybrid center portion;
- a cavity defined within the waveguide body;
- a plurality of ports defined within the waveguide body, wherein the hybrid center portion is disposed between the plurality of ports and each of the ports of the plurality of ports are in communication with the cavity;
- and
- a septum defined within the waveguide body, wherein the septum comprises a chamfered edge and is recessed from the hybrid center portion and the septum is configured to generate a TE20 mode.
A method to split power from a source, the method comprising:
- receiving an input signal within a waveguide hybrid coupler, wherein the waveguide hybrid coupler comprises an H-plane bend;
- launching a TE20 mode at the H-plane bend from the input signal;
- directing the input signal equally between a first output port and a second output port of the waveguide hybrid coupler;
- and
- directing the TE20 mode toward a hybrid center of the waveguide hybrid coupler via a septum, the septum comprising a chamfered edge.
Dependencies are inferred from the claim text.