Transmission line, resonator, filter, duplexer and communication equipment

Application Number: 00106949
Application Date: 2000.04.19
Publication Number: 1271189
Publication Date: 2000.10.25
Priority Information: 1999/4/19 JP 110884/99
International: H01P1/203;H01P3/08;H01P7/08
Applicant(s) Name: Murata Manufacturing Co., Ltd.
Inventor(s) Name: Hitaka Seimichi;Ota Mitsuaki;Abe Shin
Patent Agency Code: 31100
Patent Agent: hong ling
Abstract A transmission line, a resonator, a filter, a duplexer, and a communication apparatus efficiently minimize power losses due to edge effects, thereby having superior loss-reduction characteristics. A continuous line and a plurality of thin lines each having a predetermined length and branching from both sides of the continuous line are formed on a dielectric substrate. According to this, substantial edges of the individual thin lines do not exist, and losses due to edge effects can be efficiently minimized.