Wave transmission lines and networks – Resonators – With tuning
Reexamination Certificate
2006-01-10
2006-01-10
Jones, Stephen E. (Department: 2817)
Wave transmission lines and networks
Resonators
With tuning
C333S219000, C333S0990MP, C505S210000
Reexamination Certificate
active
06985054
ABSTRACT:
The present invention relates to an electrically controllable/tunable microwave device comprising a ferroelectric substrate with a variable dielectric permitivity and conducting electrodes, arranged on said substrate, and the capacitance of which depends on applied voltage C/V), the microwave device comprises at least two sections or parts of the substrate/electrodes for each of which different electrical field strengths are generated upon voltage application. Said generated electrical field strengths are controlled by means of the design of the device and/or the voltage application such that the slope (dC(dV) of the voltage dependence of the capacitance (C(V) of the microwave device can be controlled.
REFERENCES:
patent: 5472935 (1995-12-01), Yandrofski et al.
patent: 5495438 (1996-02-01), Omura
patent: 5965494 (1999-10-01), Terashima et al.
patent: 6216020 (2001-04-01), Findikoglu
patent: WO 96/42118 (1996-12-01), None
Gevorgian Spartak
Wikborg Erland
Jones Stephen E.
Nixon & Vanderhye P.C.
Telefonaktiebolaget LM Ericsson (publ)
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