An analog front-end with integrated notch filter for 3–5 GHz UWB receivers in 0.13 μm CMOS

A 3-5 GHz UWB receiver front-end employs a notch filter to deal with out-of-band blockers coming from Wi- Fi systems. The front-end draws a total of 20 mA from a 1.5 V supply (excluding the notch filter) and features a 3-step variable gain, with a maximum gain of 25 dB. The notch Alter provides as much as 36 dB of attenuation with a power consumption penalty of less than 20% and improves the linearity of the circuit by at least 6 dB. An algorithm for the automatic tuning and calibration of the filter is also demonstrated.

[1]  D.M.W. Leenaerts,et al.  An interference-robust receiver for ultra-wideband radio in SiGe BiCMOS technology , 2005, IEEE Journal of Solid-State Circuits.

[2]  S. Lo,et al.  A Dual-Antenna Phased-Array UWB Transceiver in 0.18-$\mu{\hbox {m}}$ CMOS , 2006, IEEE Journal of Solid-State Circuits.

[3]  Francesco Svelto,et al.  A 0.18-μm CMOS selective receiver front-end for UWB applications , 2006 .

[4]  M. Tiebout,et al.  A WiMedia/MBOA-Compliant CMOS RF Transceiver for UWB , 2006, 2006 IEEE International Solid State Circuits Conference - Digest of Technical Papers.

[5]  F. Svelto,et al.  A 0.18-$muhbox m$CMOS Selective Receiver Front-End for UWB Applications , 2006, IEEE Journal of Solid-State Circuits.

[6]  A.P. Chandrakasan,et al.  A BiCMOS Ultra-Wideband 3.1–10.6-GHz Front-End , 2006, IEEE Journal of Solid-State Circuits.

[7]  M. Tiebout,et al.  A 0.13/spl mu/m CMOS LNA with Integrated Balun and Notch Filter for 3-to-5GHz UWB Receivers , 2007, 2007 IEEE International Solid-State Circuits Conference. Digest of Technical Papers.

[8]  S. Lee,et al.  A WiMedia-Compliant UWB Transceiver in 65nm CMOS , 2007, 2007 IEEE International Solid-State Circuits Conference. Digest of Technical Papers.