Title:
DUPLEXER
Document Type and Number:
Japanese Patent JPH04284710
Kind Code:
A
Abstract:
PURPOSE: To make the duplexer considerably small in size without forming split print coils.
CONSTITUTION: Since a printed L1 use electrode film 2 on a dielectric layer U2 is used for a 1st coil and a printed L2 use electrode film 7 on a dielectric layer U7 is used for a 2nd coil and the inductance of the two L1 use electrode film 2 and the L2 use electrode film 7 is set smaller than the theoretical value, the length of the L1 use electrode film 2 and the L2 use electrode film 7 is decreased and then the L1 use electrode film 2 and the L2 use electrode film 7 are formed without split and the smaller dielectric layers U2, U7 or the like are used, then the entire size is considerably made small.
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Inventors:
TONEGAWA KEN
OKAMURA NAOTAKE
TANIGUCHI TETSUO
TSURU TERUHISA
OKAMURA NAOTAKE
TANIGUCHI TETSUO
TSURU TERUHISA
Application Number:
JP4936591A
Publication Date:
October 09, 1992
Filing Date:
March 14, 1991
Export Citation:
Assignee:
MURATA MANUFACTURING CO
International Classes:
H03H7/46; (IPC1-7): H03H7/46
Domestic Patent References:
| JP43028540A |
Attorney, Agent or Firm:
Nakajima Shiro