Title:
VARIABLE CAPACITANCE ELEMENT, PACKAGED CIRCUIT, RESONANT CIRCUIT, COMMUNICATION APPARATUS, COMMUNICATION SYSTEM, WIRELESS CHARGING SYSTEM, POWER SUPPLY APPARATUS, AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2014/024716
Kind Code:
A1
Abstract:
Provided are a variable capacitance element whereby capacitance variance among variable capacitance elements is further reduced, and a packaged circuit that includes the variable capacitance element. A variable capacitance element (10) is configured such that the variable capacitance element is provided with an element main body section (11), a correcting section (12), an external terminal (13) for first signals, an external terminal (16) for second signals, external terminals (14, 15) for control, and external terminals (17, 18) for capacitance correction. The correcting section (12) has second variable capacitor sections (C9-C11) that include a second dielectric layer formed of a ferroelectric material, said correcting section being connected to the element main body section (11), and changing capacitance corresponding to control voltage signals.
Inventors:
KANNO MASAYOSHI (JP)
SAITO NORIO (JP)
SAITO NORIO (JP)
Application Number:
PCT/JP2013/070474
Publication Date:
February 13, 2014
Filing Date:
July 29, 2013
Export Citation:
Assignee:
DEXERIALS CORP (JP)
International Classes:
H01G7/06; H01F38/14; H02J7/00
Foreign References:
| JP2012060030A | 2012-03-22 | |||
| JP2011119482A | 2011-06-16 | |||
| JP2009142043A | 2009-06-25 |
Attorney, Agent or Firm:
KOIKE, Akira et al. (JP)
Akira Koike (JP)
Akira Koike (JP)
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