Electric field-tunable negative magnetic permeability part based on ferroelectric ceramic grain and its making method |
Title： |
| Electric field-tunable negative magnetic permeability part based on ferroelectric ceramic grain and its making method |
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Application Number： |
200710176727 |
Application Date： |
2007/11/02 |
Announcement Date： |
2008/03/26 |
Pub. Date： |
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Publication Number： |
101150217 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H01P 1/217, H01P 1/215 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Zhou Ji, Zhao Qian, Kang Lei, Du Bo, Zhao Hongjie, Li Bo |
Key Words： |
Electric field-tunable, negative magnetic permeability part, ferroelectric ceramic grain |
Abstract： |
This invention relates to a negative permeability device with adjustable electric field based on ferroelectric ceramic particles and its preparation method, in which, the device is composed of two parallel metal pole plates, multiple laminated teflon templates set between the two pole plates, ferroelectric ceramic particles and DC supply, in which, a hole array is set on each teflon template filled with the particles, and the device can drive electromagnetic waves to generate strong magnetic resonance at a certain band and have isotropical negative permeability effect adjacent to the magnetic resonance to realize controlling negative magnetic conductivity and utilizes the adjustment property of field to dielectric constant of ferroelectric ceramic particles to realize controlling its negative permeability. |
Claim： |
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Priority： |
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PCT： |
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