Title :
A transmitter IC for TETRA systems based on a Cartesian feedback loop linearization technique
Author :
Pipilos, Spyros ; Papananos, Yannis ; Naskas, Nikolaos ; Zervakis, Manolis ; Jongsma, Jakob ; Gschier, Tony ; Wilson, Nigel ; Gibbins, Jo ; Carter, Bob ; Dann, Graham
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Nat. Tech. Univ. of Athens, Zographou, Greece
fDate :
3/1/2005 12:00:00 AM
Abstract :
A fully integrated linearized transmitter for the next generation TETRA systems for PMR and public safety applications in a CMOS-based SiGe technology is described. The presented single-chip transmitter employs a Cartesian feedback loop technique in order to improve the linearity of the externally connected power amplifier. The transmitter is usable in a frequency range from 300 MHz up to 800 MHz, providing a linearity improvement of more than 40 dB.
Keywords :
CMOS integrated circuits; linearisation techniques; power amplifiers; radio transmitters; 300 to 800 MHz; CMOS technology; Cartesian feedback loop linearization technique; SiGe; TETRA Systems; power amplifier; public safety applications; transmitter IC; CMOS technology; Feedback loop; Frequency; Germanium silicon alloys; Linearity; Linearization techniques; Power amplifiers; Safety; Silicon germanium; Transmitters; Cartesian feedback loop; linearization; power amplifier (PA);
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2005.843633
