Wave transmission lines and networks – Plural channel systems – Having branched circuits
Reexamination Certificate
2007-01-10
2008-09-16
Tran, Anh Q (Department: 2819)
Wave transmission lines and networks
Plural channel systems
Having branched circuits
C333S193000, C333S195000
Reexamination Certificate
active
07425879
ABSTRACT:
In a longitudinally coupled resonator SAW filter apparatus, one end of each N first longitudinally coupled resonator SAW filter, where N is an integer equal to or greater than 2, is connected in parallel to an unbalanced signal terminal, the first N longitudinally coupled resonator SAW filters are connected in a cascade arrangement to M second longitudinally coupled resonator SAW filters, where M is an integer equal to or greater than 1, the M second longitudinally coupled resonator SAW filter are connected to first and second balanced signal terminals, and N and M are selected such that N>M.
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Keating & Bennett LLP
Murata Manufacturing Co. Ltd.
Tran Anh Q
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