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US 12,738,624 B2Granted
Method and apparatus for a coaxial high power RF combiner
AssigneeScientific Components Corporation
InventorYevhen Tymofieiev
Life of this patent
Estimating the term…
Abstract
A high power electrical signal power combiner including coaxial and integrated waveguide structures, and including thermal stress relief elements and impedance transformation elements is designed and constructed.
Claims17
A power combiner comprising:
- an electrical signal power combiner housing;
- a first pair of input ports and a second pair of input ports, wherein each said input port connects to an input coaxial transmission line into said power combiner housing;
- a plurality of coaxial transmission line to waveguide transitions within said housing, wherein each said input coaxial transmission line connects to a coaxial input of one of each coaxial to waveguide transitions;
- a first waveguide junction within said housing connected to each of two waveguide transitions from said first pair of input ports, and having a waveguide output;
- a second waveguide junction within said housing connected each of two waveguide transitions from said second pair of input ports, and having a waveguide output;
- a first waveguide transmission line within said housing connected at one end to an output of said first waveguide junction and at the other end to a third waveguide junction within said housing;
- a second waveguide transmission line within said housing connected at one end to said second waveguide junction and at the other end to said third waveguide junction;
- a mechanical stress relief waveguide within said housing connected at one end to an output of said third waveguide junction, and connected at the other end to a waveguide to coaxial transmission line transition within said housing;
- and
- an output coaxial transmission line connected at one end to said waveguide to coaxial transmission line transition, and at the other end output of said housing to an output port.
7 more elements
A radio frequency (RF) electrical signal power combiner comprising:
- four RF input ports, wherein each said input port further comprises an RF connector attached to an exterior of said RF electrical signal power combiner, and attached 50 ohms coaxial transmission line into an interior of said electrical signal power combiner;
- four coaxial to waveguide transitions, each electrically connected to each said 50 ohms coaxial transmission line, in pairs;
- two 2:1 single ridged waveguide combiners and impedance transformers, each operably combining two input RF electrical signals into a combined output power electrical signal, and operably transforming said input RF electrical signals at said 50 ohms impedances to an output 25 ohms impedance;
- two RF waveguide transmission lines, each electrically operably connected to the output of said single ridged waveguide combiners and impedance transformers, each with transmission line impedance of 25 ohms, and each mechanically attached to an interior of a housing, said mechanical attachment providing for thermal dissipation of heat generated by said electrical signal power combiner;
- a single ridged coupled waveguide 2:1 power combiner electrically operably combining two inputs from each of two said RF waveguide transmission lines, said combining primarily by electrical coupling, and having input impedance of 25 ohms and output impedance of 50 ohms;
- a thermal stress relief half-loop waveguide transmission line connected to said output of said single ridged coupled waveguide 2:1 power combiner;
- a 50 ohms coaxial transmission line connected to said thermal stress relief half-loop waveguide transmission line from the interior of said electrical signal power combiner to the exterior of said RF electrical signal power combiner;
- and
- an RF output ports, wherein said output port further comprises an RF connector attached to an exterior of said RF electrical signal power combiner, and attached to said 50 ohms coaxial transmission line from an interior of said electrical signal power combiner.
6 more elements
A method of constructing an electrical signal power combiner comprising:
- constructing a metallic housing, wherein said metallic housing further comprises waveguide structures as part of said housing;
- applying a coating to said housing;
- and
- assembling one or more connectors and coaxial transmission lines into said housing, wherein at least one of the coaxial connectors is an N-Type connector,
- wherein said coating is a conductive metallic coating.
2 more elements
Dependencies are inferred from the claim text.