Title:
VARIABLE INDUCTOR
Document Type and Number:
WIPO Patent Application WO/2005/109456
Kind Code:
A1
Abstract:
The present invention relates to a variable inductor for high frequency and microwave circuit, which comprises a substrate, a fired inductance and signal terminals made of metal micro strip line on the substrate, and which also comprises a conductive sheet on the substrate for adjusting the geometrical size of the metal micro strip line of effective inductance portion of fixed inductance and insulator for changing the contact area between the conductive sheet and metal micro strip line of fixed inductance, the insulator is adjacent to the conductive sheet. The present invention is suit for various high frequency and microwave circuit. It is small volume, low cost and can be used for various circuits which are adjusted with inductance such as high frequency and microwave match, resonance circuit, control circuit and so on.
Inventors:
YAN YUEJUN (CN)
YAN YUEPENG (CN)
YAN YUEPENG (CN)
Application Number:
PCT/CN2005/000197
Publication Date:
November 17, 2005
Filing Date:
February 17, 2005
Export Citation:
Assignee:
YAN YUEJUN (CN)
YAN YUEPENG (CN)
YAN YUEPENG (CN)
International Classes:
H01F17/00; H01F19/04; H01F21/02; H01F21/04; H01F41/04; (IPC1-7): H01F21/04
Foreign References:
| JPH10163031A | 1998-06-19 | |||
| CN1489158A | 2004-04-14 | |||
| JPH01251708A | 1989-10-06 |
Attorney, Agent or Firm:
RUNPING & PARTNERS (Yingu Mansion No. 9 Beisihuanxil, Haidian District Beijing 0, CN)
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