Title:
COUPLING ADJUSTING STRUCTURE FOR MULTIPLE-TUNED CIRCUIT
Document Type and Number:
Japanese Patent JP3936562
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a thin and easily adjustable coupling adjusting structure for multiple-tuned circuit.
SOLUTION: This coupling adjusting structure for multiple-tuned circuit is formed by connecting first conductor patterns 5 and 9 in which first and second coils 4 and 8 are positioned on one surface of a printed board 1 and second conductor patterns 6 and 10 in which the coils 4 and 8 are positioned on the other surface of the board 1 to each other through connecting conductors 7 and 11. Consequently, the thickness of this structure can be reduced by reducing the heights of the coils 4 and 8. In addition, since the coils 4 and 8 are arranged closely end to end and a first grounding conductive pattern 12 is provided on at least one surface of the printed board 1 so that a first jumper member 15 connected to the pattern 12 may be positioned between the coils 4 and 8 to adjust M-coupling, the coupling of the multiple-tuned circuit can be adjusted.
Inventors:
Shigeru Nagata
Application Number:
JP2001249508A
Publication Date:
June 27, 2007
Filing Date:
August 20, 2001
Export Citation:
Assignee:
ALPS ELECTRIC CO.,LTD.
International Classes:
H01F19/00; H01F17/00; H01F17/02; H01F27/00; H03H7/01; H03J1/00; (IPC1-7): H01F19/00; H01F17/00; H01F17/02; H01F27/00; H03J1/00
Domestic Patent References:
| JP5050804U | ||||
| JP7272932A | ||||
| JP59180516U | ||||
| JP9092523A | ||||
| JP2118987U | ||||
| JP6152208A | ||||
| JP61170109A | ||||
| JP58139723U |
Attorney, Agent or Firm:
Amada Masayuki
Hiroyoshi Aoki
Yoshimasa Okada
Hiroyoshi Aoki
Yoshimasa Okada