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

fYear

2015

fDate

24-27 May 2015

Firstpage

1686

Lastpage

1689

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (ISCAS), 2015 IEEE International Symposium on

Conference_Location

Lisbon

Type

conf

DOI

10.1109/ISCAS.2015.7168976

Filename

7168976