Title :
An analog front-end with integrated notch filter for 3–5 GHz UWB receivers in 0.13 μm CMOS
Author :
Vallese, Alessio ; Bevilacqua, Andrea ; Sandner, Christoph ; Tiebout, Marc ; Gerosa, Andrea ; Neviani, Andrea
Author_Institution :
Univ. of Padova, Padova
Abstract :
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.
Keywords :
CMOS analogue integrated circuits; MMIC; microwave filters; notch filters; radio receivers; ultra wideband communication; CMOS; UWB receivers; analog front-end; automatic tuning; current 20 mA; frequency 3 GHz to 5 GHz; integrated notch filter; out-of-band blockers; power consumption penalty; size 0.13 mum; voltage 1.5 V; Attenuation; Calibration; Circuit optimization; Filtering; Filters; Gain; Impedance matching; Interference; Linearity; Narrowband;
Conference_Titel :
Solid State Circuits Conference, 2007. ESSCIRC 2007. 33rd European
Conference_Location :
Munich
Print_ISBN :
978-1-4244-1125-2
DOI :
10.1109/ESSCIRC.2007.4430265
