RF phase delay lines with variable displacement fluidic...

Details RF phase delay lines with variable displacement fluidic... RF phase delay lines with variable displacement fluidic...

2006-03-14

2006-03-14

Ham, Seungsook (Department: 2817)

Wave transmission lines and networks

Coupling networks

Delay lines including long line elements

C333S139000, C333S161000

Reexamination Certificate

active

07012482

ABSTRACT:
A phase delay line (100). The phase delay line can include an RF transmission line (110) and a fluid channel (109) having a serpentine configuration. The transmission line can be coupled to a solid dielectric substrate material (102), for example a substrate formed from a low temperature co-fired ceramic material. The fluid channel can be coupled to the RF transmission line along at least a portion of a length of the transmission line. A phase delay of the RF transmission line can be selectively varied by adjusting a distribution of the fluidic dielectric (130) present within the fluid channel. Similarly, the phase delay of the RF transmission line also can be maintained constant as an operational frequency of the RF transmission line is varied.

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