Waveguide filter with electronically controllable variable dielectric material
AssigneeViaSat, Inc.
InventorRyan I. Morgan
Life of this patent
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Abstract
A waveguide filter may include a waveguide conduit through which an electromagnetic wave propagates. The waveguide filter may include a resonant cavity comprising at least a portion of the waveguide conduit. The waveguide filter may include a variable dielectric material disposed adjacent to the resonant cavity. The waveguide filter may include a tuning electrode to apply an electric field through the variable dielectric material for modification of a permittivity of the variable dielectric material.
Claims22
A waveguide filter with electronically controlled variable dielectric material, comprising:
- a waveguide conduit;
- a resonant cavity comprising at least a portion of the waveguide conduit;
- a variable dielectric material disposed adjacent to the resonant cavity, wherein the variable dielectric material comprises an aqueous graphene oxide paste;
- a tuning electrode to apply an electric field through the variable dielectric material for modification of a permittivity of the variable dielectric material;
- and
- a recess in a sidewall of the waveguide conduit adjacent to the resonant cavity, wherein the resonant cavity is defined by the sidewall of the waveguide conduit, and wherein the variable dielectric material is located in the recess, wherein the tuning electrode extends into the recess and is in contact with the variable dielectric material to apply the electric field through the variable dielectric material.
A method of operation of a waveguide filter with electronically controlled variable dielectric material, the method comprising:
- applying, with a tuning electrode, an electric field through a variable dielectric material disposed adjacent to a resonant cavity of a waveguide conduit wherein the variable dielectric material comprises an aqueous graphene paste;
- and
- modifying a permittivity of the variable dielectric material in response to the electric field, wherein the permittivity of the variable dielectric material affects performance of the waveguide filter;
- wherein the variable dielectric material is located in a recess in a sidewall of the waveguide conduit adjacent to the resonant cavity, wherein the resonant cavity is defined by the sidewall of the waveguide conduit, wherein the tuning electrode extends into the recess and is in contact with the variable dielectric material to apply the electric field through the variable dielectric material.
Dependencies are inferred from the claim text.