发明授权
US07276992B2 Antenna duplexer and electronic device 有权
天线双工器和电子设备

Antenna duplexer and electronic device
摘要:
An antenna duplexer includes two surface acoustic wave filters having different center frequencies and a phase matching circuit that matches phases of the two surface acoustic wave filters. A matching line pattern is provided on at least two layers between the two surface acoustic wave filters and transmission and reception terminals, and within an area specified by a sheet-like ground in a multilayered package, the multilayered package comprising multiple layers including a bonding layer on which wire bonding pads are provided for connecting to the two surface acoustic wave filters, and the matching line pattern having no portion provided on bonding layer.
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