RF transmitter and receiver front-end

Details RF transmitter and receiver front-end RF transmitter and receiver front-end

2011-08-02

2011-08-02

Vuong, Quochien B (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

With particular receiver circuit

C455S130000, C455S307000

Reexamination Certificate

active

07991379

ABSTRACT:
A radio frequency receiver front-end includes a low noise amplifier, a mixing stage, and a selectable channel filter. The low noise amplifier is operably coupled to amplify inbound RF signals to produce amplified inbound RF signals. The mixing stage is operably coupled to mix amplified inbound RF signals with a 1stlocal oscillation to produce a 1stintermediate frequency (IF) signal. The selectable channel filter is operably coupled to pass a 1stchannel of the 1stIF signal when a channel select signal is in a 1ststate and to pass a 2ndchannel of the 1stIF signal when the channel select signal is in a 2ndstate to produce a selected channel.

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