Wave transmission lines and networks – Plural channel systems – Having branched circuits
Reexamination Certificate
2007-06-06
2010-11-09
Summons, Barbara (Department: 2817)
Wave transmission lines and networks
Plural channel systems
Having branched circuits
C333S189000
Reexamination Certificate
active
07830226
ABSTRACT:
A film bulk acoustic resonator (FBAR) filter and a duplexer are disclosed. At least one series resonator is positioned between an input port for inputting a frequency signal and an output port for outputting a frequency signal, at least two shunt resonators respectively positioned between the input and output ports and a ground, a first trimming inductor connects the at least two shunt resonators and the ground, and a second trimming inductor is positioned between the at least two shunt resonators.
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Machine translation of JP 2003-110404 published Apr. 11, 2003.
English language machine translation of JP 2002-217676 published Aug. 2, 2002.
Kim Chul-soo
Nam Kuang-woo
Park Eun-seok
Park Yun-kwon
Song In-sang
NSIP Law
Samsung Electronics Co,. Ltd.
Summons Barbara
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