TY - GEN
T1 - 20.6 A blocker-resilient wideband receiver with low-noise active two-point cancellation of >0dBm TX leakage and TX noise in RX band for FDD/Co-existence
AU - Zhou, Jin
AU - Kinget, Peter R.
AU - Krishnaswamy, Harish
PY - 2014
Y1 - 2014
N2 - The demand for lower cost and form factor and increased re-configurability in wireless systems has driven the investigation of blocker-tolerant software-defined radios [1-4]. While promising, a reduction in system form-factor will result in lower isolation among antennas due to the co-existence of multiple ratios or lower isolation within duplexers for FDD systems due to their reduced size and/or increased re-configurability. Out-of-band (OOB) powerful modulated TX-leakage due to limited antenna/duplexer isolation imposes challenges that are more severe than those posed by continuous-wave (CW) blockers by several orders of magnitude, including cross-modulation, second-order intermodulation and TX noise in the RX band (Fig. 20.6.1). Analysis shows that in the face of 0dBm peak TX leakage and a -30dBm CW in-band jammer, to achieve -90dBm sensitivity with 7dB SNR over 2MHz signal BW, a transceiver must exhibit +30dBm receiver OOB IIP3 and -160dBc/Hz TX noise in RX band.
AB - The demand for lower cost and form factor and increased re-configurability in wireless systems has driven the investigation of blocker-tolerant software-defined radios [1-4]. While promising, a reduction in system form-factor will result in lower isolation among antennas due to the co-existence of multiple ratios or lower isolation within duplexers for FDD systems due to their reduced size and/or increased re-configurability. Out-of-band (OOB) powerful modulated TX-leakage due to limited antenna/duplexer isolation imposes challenges that are more severe than those posed by continuous-wave (CW) blockers by several orders of magnitude, including cross-modulation, second-order intermodulation and TX noise in the RX band (Fig. 20.6.1). Analysis shows that in the face of 0dBm peak TX leakage and a -30dBm CW in-band jammer, to achieve -90dBm sensitivity with 7dB SNR over 2MHz signal BW, a transceiver must exhibit +30dBm receiver OOB IIP3 and -160dBc/Hz TX noise in RX band.
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U2 - 10.1109/ISSCC.2014.6757466
DO - 10.1109/ISSCC.2014.6757466
M3 - Conference contribution
AN - SCOPUS:84898059720
SN - 9781479909186
T3 - Digest of Technical Papers - IEEE International Solid-State Circuits Conference
SP - 352
EP - 353
BT - 2014 IEEE International Solid-State Circuits Conference, ISSCC 2014 - Digest of Technical Papers
T2 - 2014 61st IEEE International Solid-State Circuits Conference, ISSCC 2014
Y2 - 9 February 2014 through 13 February 2014
ER -