Telecommunications – Transmitter and receiver at same station – With transmitter-receiver switching or interaction prevention
Reexamination Certificate
2006-06-19
2009-08-18
Phu, Sanh D (Department: 2618)
Telecommunications
Transmitter and receiver at same station
With transmitter-receiver switching or interaction prevention
C455S073000, C455S076000, C455S083000, C455S561000, C455S562100
Reexamination Certificate
active
07577404
ABSTRACT:
A high-frequency module constituted by an integral laminate for handling a plurality of transmitting/receiving systems having different passbands comprises (a) a switch module part for branching higher-frequency signals and lower-frequency signals and switching connection to the transmitting systems and the receiving systems, (b) a high-frequency amplifying circuit module part, and (c) a phase-adjusting circuit disposed between the switch module part and the high-frequency amplifying circuit module part, wherein the phase matching between the switch module part and the high-frequency amplifying circuit module part via the phase-adjusting circuit is adjusted to conjugate matching in a fundamental frequency band, while it is adjusted in a nonconjugate matching range in n-th frequency bands, wherein n is an integer of 2 or more.
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Hitachi Metals Ltd.
Phu Sanh D
Sughrue & Mion, PLLC
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