Title:
LC FILTER
Document Type and Number:
Japanese Patent JP3454202
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a convenient LC filter in which the variable width of frequency characteristics can be made wide, and its use can be hardly limited.
SOLUTION: A first inductor part 22 is provided with an inductor part 30 with a switch having an ON/OFF changeover switch 29, and the inductor part 30 with the switch and a second inductor part 23 are magnetically coupled (M coupled), and the directions of the generation of mutual magnetic fluxes are made the same.
Inventors:
Kenji Ueno
Application Number:
JP28555799A
Publication Date:
October 06, 2003
Filing Date:
October 06, 1999
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H01F27/00; H03H7/09; H03H7/12; (IPC1-7): H03H7/12; H01F27/00; H03H7/09
Domestic Patent References:
| JP5088902A | ||||
| JP58125204A | ||||
| JP61287310A | ||||
| JP2179014A | ||||
| JP57117822U | ||||
| JP62105622U | ||||
| JP279612U |
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)
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