Variable phase delay by modifying a fluidic dielectric

Details Variable phase delay by modifying a fluidic dielectric Variable phase delay by modifying a fluidic dielectric

2005-04-05

2005-04-05

Tokar, Michael (Department: 2819)

Wave transmission lines and networks

Coupling networks

Delay lines including long line elements

C333S161000

Reexamination Certificate

active

06876274

ABSTRACT:
A variable phase delay line (110) includes an RF transmission line (111) and at least one fluidic delay unit (108). The fluidic delay unit includes a fluidic dielectric (130) contained in a cavity (109) and coupled to the RF transmission line along at least a portion of a length thereof. At least one pump (114) is provided for mixing and for adding and removing the fluid dielectric to the cavity in response to a phase delay control signal (137). A propagation delay of the RF transmission line is selectively varied by adding and removing the fluidic dielectric from the cavity and/or changing the composition of the fluidic dielectric using a composition processor (101).

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