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US 2002/0171507 A1Published application
Branching filter package
AssigneeOki Electric Industry Co., Ltd.
InventorsWataru Ohashi, Hajime Shimamura, Tomokazu Komazaki, Yoshiaki Fujita
Life of this patent
Estimating the term…
Abstract
A branching filter package has a SAW filter chip housing area which houses a piezo electric base, on which a transmitting SAW filter and a receiving SAW filter having a different frequency passing band with each other, are formed, and an impedance matching circuit and a branching circuit for the transmitting SAW filter and the receiving SAW filter.
Claims7
A branching filter package comprising:
- a SAW filter chip housing area which houses a piezo electric base, on which a transmitting SAW filter and a receiving SAW filter having a different frequency passing band with each other, are formed;
- an impedance matching circuit for said transmitting SAW filter and said receiving SAW filter;
- and
- a branching circuit for said transmitting SAW filter and said receiving SAW filter.
1 more element
Dependencies are inferred from the claim text.