A 2.4-GHz low power polar transmitter for wireless body area network applications

A 2.4-GHz low power polar transmitter architecture is proposed in this paper. A dynamic biasing circuit, controlled by a digital envelope signal, is used to linearize the input-output characteristic of the overdriven class-C power amplifier. A model of the transmitter is presented and used for initial assessment of the achievable performance in terms of efficiency and linearity. The transmitter is designed in a 65 nm CMOS technology. The transistor-level simulations indicate that the transmitter successfully meets the requirements of the IEEE 802.15.6 standard for wireless body area networks. The simulated amplifier consumes 5 rnA from a 1.2 V supply while delivering 1.8 dBm of output power with a peak efficiency of 26.5 %.


Published in:
Proceedings of the 11th International New Circuits and Systems Conference
Presented at:
2013 IEEE 11th International New Circuits and Systems Conference (NEWCAS), Paris, France, June 16-19, 2013
Year:
2013
ISBN:
978-1-4799-0620-8
Keywords:
Laboratories:




 Record created 2017-03-05, last modified 2018-03-17

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