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1. (WO2017041034) A SYSTEM AND METHOD FOR DIRECT-SAMPLE EXTREMELY WIDE BAND TRANSCEIVER

Pub. No.:    WO/2017/041034    International Application No.:    PCT/US2016/050261
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Sep 03 01:59:59 CEST 2016
IPC: H04B 1/38
H04B 1/44
H04B 7/185
H04L 23/02
Applicants: UNIVERSITY OF WASHINGTON
Inventors: GOODSON, Anthony P.
SAHR, John D.
Title: A SYSTEM AND METHOD FOR DIRECT-SAMPLE EXTREMELY WIDE BAND TRANSCEIVER
Abstract:
Systems and methods for direct sample, extremely wideband transceivers are disclosed. An example transceiver includes an antenna, an N bit analog to digital converter a digital signal processor, a digital to analog converter, and an adder. The N bit ADC receives a wideband RF input signal from the antenna, where the input signal includes weak signals and a strong signal, oversamples the input signal and provides a digital sample signal. The digital signal processor generates a digital cancelation signal from the digital sample signal, where the digital cancellation signal is generated using M bits, M greater than N. The DAC provides an analog cancellation signal based on the digital cancellation signal, and the adder provides a residual analog signal from the addition of the input signal and the analog cancellation signal, where the strong signal is at least reduced in the residual analog signal due to the analog cancellation signal.