Title :
A sub-mA FH frequency synthesizer technique
Author :
Lopelli, Emanuele ; van der Tang, Johan ; Van Roermund, Arthur
Author_Institution :
Mixed-signal Microelectron., Eindhoven Univ. of Technol.
Abstract :
A novel frequency-hopping spread-spectrum transmitter architecture is presented that provides robust communications in the 915 MHz ISM band while dissipating very low power. The frequency-hopping front-end consists of a VCO, dividers and output stage. A base-band predistortion algorithm allows hopping with minimum hardware complexity. The TX front-end has been fabricated in silicon-on-anything (SOA) bipolar technology and a BFSK modulated wireless link using a dedicated receiver has been realized. A 1kbps, 1khop/s link with a BER smaller than 1.1 % has been achieved at -25 dBm output power while having 64 orthogonal channels. The synthesizer architecture (VCO+divider+base-band) dissipates only 870mA
Keywords :
distortion; error statistics; frequency hop communication; frequency synthesizers; low-power electronics; phase shift keying; radio transmitters; spread spectrum communication; wireless channels; 1 kbit/s; 870 mA; 915 MHz; BFSK modulated wireless link; ISM band; baseband predistortion; bit error rate; frequency synthesizer; frequency-hopping spread-spectrum transmitter; silicon-on-anything bipolar technology; Bit error rate; Frequency conversion; Frequency synthesizers; Hardware; Predistortion; Robustness; Semiconductor optical amplifiers; Spread spectrum communication; Transmitters; Voltage-controlled oscillators;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2006 IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-9572-7
DOI :
10.1109/RFIC.2006.1651187
