Controlling a time delay line by adding and removing a...

Details Controlling a time delay line by adding and removing a... Controlling a time delay line by adding and removing a...

2006-05-16

2006-05-16

Le, Dinh T. (Department: 2816)

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

C333S156000

Reexamination Certificate

active

07046104

ABSTRACT:
A variable true time delay line (100) includes an RF transmission line (110) and at least one fluidic delay unit (108). The fluidic delay unit includes a fluidic dielectric contained in a cavity (109) and coupled to the RF transmission line (110) along at least a portion of a length thereof. At least one pump is provided for adding and removing the fluid dielectric to the cavity (109) in response to a time delay control signal. A propagation delay of the RF transmission line is selectively varied by adding and removing the fluid dielectric from the cavity.

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