Apparatus for controlling impedance

Details Apparatus for controlling impedance Apparatus for controlling impedance

2011-03-01

2011-03-01

Milord, Marceau (Department: 2618)

Telecommunications

Transmitter and receiver at same station

With transmitter-receiver switching or interaction prevention

C455S083000, C455S107000, C455S080000, C455S319000, C455S333000, C455S341000, C333S104000, C333S105000, C330S302000, C330S300000

Reexamination Certificate

active

07899409

ABSTRACT:
A transceiver is described that includes a power amplifier (PA), a low noise amplifier (LNA), and an impedance matching circuit having a first and second differential output node. The first and second differential output nodes are coupled to outputs of the PA and to inputs of the LNA. The impedance matching circuit provides a load impedance to the outputs of the PA. The transceiver further includes a first impedance device having an output impedance coupled between the first and second differential output nodes. In this way, the combination of the output impedance and the load impedance matches with an impedance at the inputs of the LNA.

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