US 12,666,521 B2 · Plasma radio-frequency waveguide switch

Abstract

The plasma radio-frequency (RF) waveguide switch utilizes the RF transmission cutoff frequency property of ionized gas (plasma) to implement an RF switch in waveguide. The plasma RF waveguide switch includes a waveguide defining an inner space and having an input port for receiving an RF signal and an output port, a plasma chamber placed in the inner space, ionizable gas contained in the plasma chamber, and at least one activator configured to activate the ionizable gas into a plasma state. The plasma chamber is self-contained and hermetically sealed, and therefore, the plasma RF waveguide switch does not require an external gas tank or gas supply device. The plasma chamber includes a first dielectric hermetic waveguide window at a side of the plasma chamber and a second dielectric hermetic waveguide window at an opposite side of the plasma chamber.

Claims16

Dependent claims

A plasma radio-frequency (RF) waveguide switch, comprising:

a waveguide defining an inner space and having an input port for receiving an RF signal and an output port;
a plasma chamber placed in the inner space, wherein the plasma chamber is self-contained and hermetically sealed, and wherein the plasma chamber comprises a first dielectric hermetic waveguide window at a side of the plasma chamber and a second dielectric hermetic waveguide window at an opposite side of the plasma chamber;
ionizable gas contained in the plasma chamber;
and
at least one activator configured to activate the ionizable gas into a plasma state.

2 more elements

Dependencies are inferred from the claim text.

Plasma radio-frequency waveguide switch

Life of this patent

Plasma radio-frequency waveguide switch

Life of this patent

Abstract

Claims16