Wave transmission lines and networks – Plural channel systems – Having branched circuits
Reexamination Certificate
2006-11-21
2006-11-21
Takaoka, Dean (Department: 2817)
Wave transmission lines and networks
Plural channel systems
Having branched circuits
C455S078000
Reexamination Certificate
active
07138885
ABSTRACT:
Microwave switch (MS) comprising an antenna branch (AB), a receive branch (RB), and a transmit branch (TB). According to one embodiment, the switch comprises a protection circuit (CPL, DTC, CTRL), which upon a high power signal (Dtc_h) being present on the antenna branch effectuates a biasing of semiconductors on both the receive branch (RB) and the transmit branch (TB). According to one embodiment PIN diodes are provided for controlling switching between the transmit and the receiv branch as well as enabling a protective mode, the control being accomplished by selectively biasing respective diodes.
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Emanuelsson Thomas Ove
Karlsson Peter
Burleigh Roger S.
Takaoka Dean
Telefonaktiebolaget LM Ericsson (publ)
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