Title:
フィルタ装置とその製造方法
Document Type and Number:
Japanese Patent JP4737291
Kind Code:
B2
Abstract:
A filter device having a frame made of plated steel sheet generates a smaller insertion loss and is excellent in productivity. Resonant elements are shaped into a cylindrical form by bending the steel sheet, whose both sides are plated, before they are placed in a filter housing. A gap formed on a lateral face of the resonant element is brazed with solder, and an outer plated face of the resonant element is brazed with solder to an inner plated face of the frame.
Inventors:
Minato Tachibana
Hideki Namba
Hideki Namba
Application Number:
JP2008532029A
Publication Date:
July 27, 2011
Filing Date:
August 23, 2007
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H01P7/04; H01P11/00
Domestic Patent References:
| JP2000114809A | 2000-04-21 | |||
| JPH0358501A | 1991-03-13 | |||
| JPH05183305A | 1993-07-23 | |||
| JP2006510243A | 2006-03-23 | |||
| JPH07170104A | 1995-07-04 | |||
| JPH0633682Y2 | 1994-08-31 |
Attorney, Agent or Firm:
Hiroki Naito
Daisuke Nagano
Kentaro Fujii
Daisuke Nagano
Kentaro Fujii