Title:
TUNABLE CAPACITOR
Document Type and Number:
Japanese Patent JP2014036022
Kind Code:
A
Abstract:
To provide a tunable capacitor obtained by using a material having a large change in dielectric constant for an electric field.
In a tunable capacitor utilizing a large dielectric tunability in the electric field induced phase transition of a ferroelectric substance and in the vicinity of a critical point thereof, the dielectric tunability T satisfies T≥80% when an electric field is 0-10 kV/cm. (The dielectric tunability T is represented as T=(ε(0)-ε(E))/ε(0)×100(%). ε(0) and ε(E) represent dielectric constants at a zero electric field and an electric field (E), respectively.)
Inventors:
IWATA MAKOTO
MAEDA MASAKI
TANAKA KAZUKI
MAEDA MASAKI
TANAKA KAZUKI
Application Number:
JP2012174483A
Publication Date:
February 24, 2014
Filing Date:
August 07, 2012
Export Citation:
Assignee:
NAGOYA INST TECHNOLOGY
International Classes:
H01G7/06
Domestic Patent References:
| JPH09202621A | 1997-08-05 | |||
| JPS60240006A | 1985-11-28 | |||
| JPH0524915A | 1993-02-02 | |||
| JPH04363012A | 1992-12-15 | |||
| JPS4930900A | 1974-03-19 | |||
| JPH09202621A | 1997-08-05 | |||
| JPS60240006A | 1985-11-28 | |||
| JPH0524915A | 1993-02-02 | |||
| JPH04363012A | 1992-12-15 | |||
| JPS4930900A | 1974-03-19 | |||
| JPS61101460A | 1986-05-20 |
Other References:
JPN6016016489; Ｗ．Ｐ．Ｃｈｅｎ， Ｊ．Ｑ．Ｑｉ， Ｙ．Ｗａｎｇ， Ｘ．Ｐ．Ｊｉａｎｇ， ａｎｄ Ｈ．Ｌ．Ｗ．Ｃｈａｎ: 'Ｗａｔｅｒ-ｉｎｄｕｃｅｄ ｄｅｇｒａｄａｔｉｏｎ ｉｎ ０．９１Ｐｂ（Ｚｎ１／３Ｎｂ２／３）Ｏ３-０．０９ＰｂＴｉＯ３ ｓｉｎｇｌｅ ｃｒｙｓｔａｌｓ' ＪＯＵＲＮＡＬ ＯＦ ＡＰＰＬＩＥＤ ＰＨＹＳＩＣＳ ＶＯＬＵＭＥ ９５， ＮＵＭＢＥＲ １０, 20040515, Ｐａｇｅ ５９２０-５９２１, Ａｍｅｒｉｃａｎ Ｉｎｓｔｉｔｕｔｅ ｏｆ Ｐｈｙｓｉｃｓ