Wave transmission lines and networks – Plural channel systems – Having branched circuits
Reexamination Certificate
2002-04-24
2008-12-02
Lee, Benny (Department: 2817)
Wave transmission lines and networks
Plural channel systems
Having branched circuits
C333S188000
Reexamination Certificate
active
07459990
ABSTRACT:
The invention relates to an arrangement with two piezoelectric layers (2, 5) and to a method of operating the arrangement as a filter. One (2) of the two piezoelectric layers (2, 5) in the arrangement is situated between an electrode (3) and a middle electrode (4), and the other one (5) of the two piezoelectric layers (2, 5) is positioned between another electrode (6) and said middle electrode (4) such that a bulk acoustic wave resonator is formed. The one and the other electrode (3, 6) and the middle electrode (4) are connected to circuitry means for applying high-frequency signals to at least one of the two piezoelectric layers (2, 5) such that the bulk acoustic wave resonator has at least one resonance frequency when the circuitry means are in one switching state, and that the bulk acoustic wave resonator has at least one other resonance frequency different from the at least one resonance frequency when the circuitry means are in another switching state.
REFERENCES:
patent: 3109153 (1963-10-01), Rodek
patent: 4096756 (1978-06-01), Alphonse
patent: 5446306 (1995-08-01), Stokes et al.
patent: 5910756 (1999-06-01), Ella
patent: 0962999 (1999-06-01), None
Klee Mareike K.
Loebl Hans P.
Milsom Robert F.
Wunnicke Olaf
Lee Benny
NXP B.V.
Zawilski Peter
LandOfFree
Arrangement with two piezoelectric layers, and method of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Arrangement with two piezoelectric layers, and method of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arrangement with two piezoelectric layers, and method of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4027134