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A transmitter IC for TETRA systems based on a Cartesian feedback loop linearization technique

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10 Author(s)
Pipilos, S. ; Sch. of Electr. Eng. & Comput. Sci., Nat. Tech. Univ. of Athens, Zographou, Greece ; Papananos, Y. ; Naskas, N. ; Zervakis, M.
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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.

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Solid-State Circuits, IEEE Journal of  (Volume:40 ,  Issue: 3 )