Title:
調整可能なコンデンサおよび調整可能なコンデンサを有する回路
Document Type and Number:
Japanese Patent JP2009508340
Kind Code:
A
Abstract:
A capacitor includes a multi layer structure on a ceramic or crystalline substrate. The multilayer structure includes a lower electrode, an upper electrode, and a dielectric that is tunable by a voltage applied to the electrodes. The multilayer structure is configured such that resonant oscillation modes of bulk acoustic waves can be propagated in the multilayer structure and such that the resonant frequencies of the oscillation modes are outside a first band range of between 810 and 1000 MHz, second band range of between 1700 and 2205 MHz and third band range of between 2400 and 2483.5 MHz.
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Inventors:
Anton Rideul
Wolfgang Sauer
Stephan z
Wolfgang Sauer
Stephan z
Application Number:
JP2008530320A
Publication Date:
February 26, 2009
Filing Date:
September 12, 2006
Export Citation:
Assignee:
EPCOS AG
International Classes:
H01G7/06
Domestic Patent References:
| JPH10126160A | 1998-05-15 | |||
| JPH01246911A | 1989-10-02 | |||
| JP2005160057A | 2005-06-16 | |||
| JP2003087085A | 2003-03-20 | |||
| JP2005252851A | 2005-09-15 | |||
| JP2005136761A | 2005-05-26 | |||
| JP2005124107A | 2005-05-12 | |||
| JP2004159339A | 2004-06-03 | |||
| JP2005198117A | 2005-07-21 | |||
| JP2005176333A | 2005-06-30 |
Foreign References:
| WO2004021568A1 | 2004-03-11 | |||
| WO2004034579A1 | 2004-04-22 | |||
| WO2004105237A1 | 2004-12-02 |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Hiroshi Sugimoto
Kimihiro Hoshi
Hiroyasu Ninomiya
Einzel Felix-Reinhard
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Hiroshi Sugimoto
Kimihiro Hoshi
Hiroyasu Ninomiya
Einzel Felix-Reinhard
Reinhard Einsel