Title :
A 2.4-GHz low complexity polar transmitter using dynamic biasing for IEEE 802.15.6
Author :
Kopta, Vladimir ; Thirunarayanan, Raghavasimhan ; Pengg, Franz ; Le Roux, Erwan ; Enz, Christian
Author_Institution :
Ecole Polytech. Fed. de Lausanne (EPFL), Lausanne, Switzerland
Abstract :
A 2.4 GHz polar transmitter compliant with the IEEE 802.15.6 standard is presented in this paper. A Linearized class-C power amplifier, employing dynamic biasing is used to minimize the adjacent channel interference and satisfy the defined spectrum mask requirements. An FBAR based frequency synthesizer enables fast startup and channel switching times. It is capable of addressing all the channels within the MBAN and ISM bands (2.36-2.48 GHz). The transmitter was integrated in 65 nm CMOS technology. It provides 0 dBm of output power while drawing 8.7 mA of current from a 1.2 V supply. The standalone power amplifier exhibits peak efficiency of 16%.
Keywords :
CMOS integrated circuits; UHF power amplifiers; adjacent channel interference; body area networks; frequency synthesizers; radio transmitters; CMOS technology; FBAR based frequency synthesizer; IEEE 802.15.6 standard; ISM bands; MBAN bands; adjacent channel interference; current 8.7 mA; dynamic biasing; frequency 2.36 GHz to 2.48 GHz; linearized class-C power amplifier; low complexity polar transmitter; size 65 nm; spectrum mask requirements; standalone power amplifier; voltage 1.2 V; Delays; Film bulk acoustic resonators; Phase locked loops; Power generation; Standards; Transistors; Transmitters;
Conference_Titel :
Circuits and Systems (ISCAS), 2015 IEEE International Symposium on
Conference_Location :
Lisbon
DOI :
10.1109/ISCAS.2015.7168976
