Telecommunications – Transmitter and receiver at same station – With transmitter-receiver switching or interaction prevention
Reexamination Certificate
2006-10-17
2006-10-17
Anderson, Matthew D. (Department: 2618)
Telecommunications
Transmitter and receiver at same station
With transmitter-receiver switching or interaction prevention
C455S078000, C455S079000, C455S080000, C455S082000, C455S083000, C333S103000, C333S104000, C333S124000, C333S127000, C333S128000
Reexamination Certificate
active
07123884
ABSTRACT:
A radio frequency (RF) switch which is used in an RF unit of a communication apparatus and which has less of an insertion loss during a transmission. A strip line disposed in the RF switch is formed by combining first and second strip lines having different values of characteristic impedance from each other.
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Iwasaki Tomoyuki
Nakakubo Hideaki
Anderson Matthew D.
Matsushita Electric Industrial Co. Ltd
Pan Yuwen
Wenderoth , Lind & Ponack, L.L.P.
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