System and method for an IF-sampling transceiver

Details System and method for an IF-sampling transceiver System and method for an IF-sampling transceiver

2006-03-28

2006-03-28

Tran, Khai (Department: 2637)

Pulse or digital communications

Receivers

Angle modulation

C375S316000

Reexamination Certificate

active

07020221

ABSTRACT:
The present invention is directed toward a radio, and method for receiving radio frequency signals. The radio comprises an input signal at a first intermediate frequency, an intermediate sampling architecture, a quantizer and a baseband converter. The intermediate frequency sampling architecture comprises receiving the input signal, passing the first intermediate frequency signal through a first filter characterized by steep selectivity and narrow bandpass, converting the filtered signal to a second intermediate frequency and passing the second intermediate frequency signal through a second filter having a bandpass characteristic, but without the steep selectivity characterizing the first filter. The radio further comprises a third filter following the baseband conversion which filters out adjacent channel harmonics to obtain a wanted data signal.

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