Title :
A Spectrum-Shaping Output Stage for IR-UWB Transmitters
Author :
Barras, David ; Hirt, Walter ; Jäckel, Heinz
Author_Institution :
Electron. Lab., ETH Zurich, Zurich
fDate :
6/1/2009 12:00:00 AM
Abstract :
This paper presents a novel on-chip wideband balanced-to-unbalanced (balun) transition circuit based on a complementary current inversion method. The proposed circuit features an easily controllable wide bandpass characteristic and is intended to be used as an output stage to filter ill-defined spectra of time-domain ultra-wideband pulses to fit regulation masks. We investigated the circuit in an active topology driven by differential pairs. A mathematical analysis is presented, as well as the implementation of an integrated circuit realized with IBM BiCMOS 0.18-mum technology.
Keywords :
BiCMOS integrated circuits; active filters; baluns; radio transmitters; radiofrequency integrated circuits; ultra wideband communication; IBM BiCMOS technology; IR-UWB transmitters; active topology; complementary current inversion method; ill-defined spectra; integrated circuit; on-chip wideband balanced-to-unbalanced transition circuit; size 0.18 micron; spectrum-shaping output stage; time-domain ultra-wideband pulses; Balun; differential to single-ended conversion; global positioning system (GPS); notch filter; output stage; spectrum shaping; ultra-wideband (UWB);
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2009.2019989
