Variable permittivity structure based on...

Details Variable permittivity structure based on... Variable permittivity structure based on...

2005-10-25

2005-10-25

Takaoka, Dean (Department: 2817)

Wave transmission lines and networks

Coupling networks

Delay lines including long line elements

C333S034000

Reexamination Certificate

active

06958664

ABSTRACT:
A variable permittivity structure is proposed based on composition of two different dielectrics in a transmission line. The composition is adjusted through a thermally-actuated MEMS structure, and this compositional adjustment alters the relative permittivity at least at a macro level. Adjusting the permittivity leads to tune-able impedances in the associated transmission line. The proposed invention can also be used as a variable capacitor, and it can be used to create variable capacitor, and it can be used to create variable couplers and other structures. Since the approach does not alter any conducting surfaces in the transmission line, it is believed to lead to a superior technique for impedance matching to reduced physical discontinuity.

REFERENCES:
patent: 5173666 (1992-12-01), Babbitt et al.
patent: 6075424 (2000-06-01), Hampel et al.
patent: 6816668 (2004-11-01), McDonald et al.

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