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US 7,625,131 B2Granted
Interface for waveguide pin launch
AssigneeViaSat, Inc.
InventorsRob Zienkewicz, Dave Harper, Kenneth V Buer, John DeCamp
Life of this patent
Estimating the term…
Abstract
in general, in accordance with an exemplary aspect of the present invention, a low-loss interface for connecting an integrated circuit such as a monolithic microwave integrated circuit to an energy transmission device such as a waveguide is disclosed. In one exemplary embodiment, the interface comprises a pin seated within an assembly that forms a hermetic sealed, coaxial structure to prevent signal loss at increasing frequencies.
Claims21
An interface comprising:
- a pin configured to transport energy from a monolithic microwave integrated circuit to a waveguide;
- an assembly surrounding the pin configured to reduce energy loss as compared to a pin without the assembly surrounding the pin;
- wherein one end of the pin is disposed within the assembly and an opposing end of the pin is disposed within the waveguide;
- a wire connector directly connected to the monolithic microwave integrated circuit on one end and directly connected to the opposing end of the pin disposed within the assembly;
- a space defined between the pin and the assembly;
- wherein size of the space and size of the pin are selected to facilitate impedance transformation along the interface in order that the energy will experience a similar impedance at an end of the interface near the monolithic microwave integrated circuit as the energy experiences on the monolithic microwave integrated circuit and also experience a similar impedance at an opposing end of the interface near the waveguide as the energy experiences in the waveguide.
3 more elements
An interface comprising:
- a pin comprising first and second ends, wherein the first end is connected to a waveguide assembly and the other end is directly connected to a circuit by a wirebond, wherein the pin is configured to transport energy between the circuit and the waveguide;
- an assembly with two opposing ends surrounding the pin and connected to the waveguide wherein the assembly is configured to reduce energy loss;
- two non-conductive support members contacting the pin and the assembly wherein one non-conductive support member contacts one end of the assembly adjacent to the waveguide and the other non-conductive support member contacts the opposing end of the assembly;
- a space defined by the pin, the assembly, and the two non-conductive support members;
- wherein size of the space, size of the pin, and size of the two non-conductive support members are selected to facilitate impedance transformation along the interface.
2 more elements
An interface comprising:
- a feedthru pin with one end connected to a waveguide and another end directly connected to a monolithic microwave integrated circuit with a wire connector wherein the feedthru pin is configured to transport energy between the monolithic microwave integrated circuit and the waveguide;
- an assembly surrounding the pin and connected to the waveguide wherein the assembly is configured to reduce energy loss;
- a space concentrically surrounding the feedthru pin defined by the feedthru pin and the assembly;
- and
- a thin insulator attached to the pin adjacent to the monolithic microwave integrated circuit.
2 more elements
A low loss impedance interface configured to facilitate microwave signal transmission from a monolithic microwave integrated circuit to a waveguide, wherein the interface comprises:
- a pin having a first end in communication with the waveguide to the pin, the pin further comprising a second end directly connected to the monolithic microwave integrated circuit via a wirebond;
- an assembly comprising a low-loss material configured to surround the pin;
- a space defined between the pin and the assembly;
- wherein size of the space and size of the pin are selected to facilitate impedance transformation along the interface in order that the energy will experience a similar impedance at an end of the interface near the monolithic microwave integrated circuit as the energy experiences on the monolithic microwave integrated circuit and also experience a similar impedance at an opposing end of the interface near the waveguide as the energy experiences on the waveguide.
1 more element
Dependencies are inferred from the claim text.