Title:
PLANAR FILTER, SEMICONDUCTOR DEVICE AND RADIO UNIT
Document Type and Number:
WIPO Patent Application WO/2004/049495
Kind Code:
A1
Abstract:
A planar filter comprising first and second open-forward-end transmission line resonators (103, 105) bent into a U-shape, and an open-forward-end transmission line resonator (104) bent into a crank-shape in which attenuation characteristics are enhanced by reducing the area being occupied substantially by the filter on a dielectric substrate (110).
Inventors:
YAMADA ATSUSHI (JP)
Application Number:
PCT/JP2003/014617
Publication Date:
June 10, 2004
Filing Date:
November 18, 2003
Export Citation:
Assignee:
SHARP KK (JP)
YAMADA ATSUSHI (JP)
YAMADA ATSUSHI (JP)
International Classes:
H01L27/04; H01L21/822; H01P1/203; H01P1/205; H01P7/08; (IPC1-7): H01P1/203
Foreign References:
| JP2002076703A | 2002-03-15 | |||
| JPH02106701U | 1990-08-24 |
Attorney, Agent or Firm:
Kawamiya, Osamu (IMP Building 3-7, Shiromi 1-chome, Chuo-k, Osaka-shi Osaka, JP)
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