Front end module

Details Front end module Front end module

2004-02-10

2008-05-13

Tran, Tuan (Department: 2618)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S078000, C455S080000, C455S550100, C455S553100, C333S100000, C333S103000, C333S104000

Reexamination Certificate

active

07373171

ABSTRACT:
A front end module comprises a diplexer, a first duplexer, and a second duplexer. The first duplexer is connected to the diplexer through a first high frequency switch and separates transmission signals and reception signals of the N-CDMA from each other. The second duplexer is connected to the diplexer through a second high frequency switch and separates transmission signals and reception signals of the W-CDMA from each other. Each of the duplexers includes acoustic wave elements. A single multi-layer substrate for integration is used to integrate the components of the front end module. The diplexer is made up of a conductor layer located inside or on the surface of the multi-layer substrate.

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