Antenna duplexer, and RF module and communication apparatus...

Details Antenna duplexer, and RF module and communication apparatus... Antenna duplexer, and RF module and communication apparatus...

2005-08-03

2008-11-04

Summons, Barbara (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S189000, C333S193000

Reexamination Certificate

active

07446629

ABSTRACT:
One of plurality of transmission terminals connected to a transmission filter and a receiving terminal connected to a receiving filter is a balanced type terminal, and another is an unbalanced type terminal. The transmission filter and the receiving filter includes surface acoustic wave resonators or film bulk acoustic resonators. The balanced type terminal is connected to a longitudinal mode coupled surface acoustic wave filter.

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