A 2.5nJ/bit multiband (MBAN & ISM) transmitter for IEEE 802.15.6 based on a hybrid polyphase-MUX/ILO based modulator

Author

Rahman, Mosaddequr ; Elbadry, Mohammad ; Harjani, Ramesh

Author_Institution

Univ. of Minnesota, Minneapolis, MN, USA

fYear

2014

fDate

1-3 June 2014

Firstpage

17

Lastpage

20

Abstract

This paper describes a 802.15.6 compliant 2360-2484MHz multiband transmitter that digitally multiplexes the appropriate phases from an 800MHz poly-phase filter output to generate π/4 DQPSK signals at 2.4GHz. Modulation at 1/3^rd the RF frequency reduces the transmitter power consumption and enables channel selection using a PLL running at 800MHz. The prototype transmitter consumes 2.4mW while delivering -10dBm RF power at the TX output resulting in an energy efficiency of 2.5nJ/bit at 1.2Mbps. The measured RMS EVM for π/4 DQPSK modulation is 3.21%.

Keywords

UHF filters; body area networks; differential phase shift keying; modulators; multiplexing; phase locked loops; quadrature phase shift keying; DQPSK modulation; DQPSK signal; IEEE 802.15.6; ISM transmitter; MBAN transmitter; PLL; RMS EVM; bit rate 1.2 Mbit/s; channel selection; compliant multiband transmitter; digital multiplexing; energy efficiency; frequency 2360 MHz to 2484 MHz; frequency 800 MHz; hybrid polyphase-MUX-ILO based modulator; polyphase filter output; power 2.4 mW; transmitter power consumption; Frequency modulation; IEEE 802.15 Standards; Phase locked loops; Power harmonic filters; Radio frequency; Radio transmitters; π/4 DQPSK; 802.15.6; RF; WBAN; injection locking; low power; transmitter;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits Symposium, 2014 IEEE

Conference_Location

Tampa, FL

ISSN

1529-2517

Print_ISBN

978-1-4799-3862-9

Type

conf

DOI

10.1109/RFIC.2014.6851646

Filename

6851646