High frequency module

Details High frequency module High frequency module

2007-07-03

2007-07-03

Anderson, Matthew D. (Department: 2618)

Telecommunications

Transmitter and receiver at same station

With transmitter-receiver switching or interaction prevention

C455S080000, C455S552100, C333S103000, C257S728000

Reexamination Certificate

active

10475940

ABSTRACT:
The present invention provides a high frequency module having a base substrate unit (2) which has its uppermost layer planarized to form a buildup-forming surface (16), a high frequency circuit unit (3) having multiple wiring layers which are formed on the base substrate unit (2), each of which layers has a wiring pattern and film elements formed on a dielectric insulating layer thereof, whose uppermost wiring layer (17) has plural lands (22) and ground patterns (20) formed thereon together with the wiring pattern and inductor elements (19), and a semiconductor chip (4) mounted on the wiring layer (17) of the high frequency circuit unit (3). Transmission lines (24) to connect the inductor elements (19) and lands (22) which are formed on the wiring layer (17) are directed within hollowed pattern regions (20c) formed at the ground pattern (20) to constitute coplanar type transmission lines.

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