A regenerative semi-dynamic frequency divider for mode-1 MB-OFDM UWB hopping carrier generation

A regenerative semi-dynamic frequency divider for mode-1 MB-OFDM UWB hopping carrier generation

A semi-dynamic regenerative frequency divider for MB-OFDM UWB hopping carrier generation is presented. With the ratio of 7.5, it provides quadrature symmetric 528 MHz deviation for direct frequency synthesis. Realized in 0.18 /spl mu/m CMOS, the chip occupies 0.8/spl times/0.85 mm/sup 2/. The synthe...

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Hauptverfasser: Chien-chih Lin, Chorng-Kuang Wang
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Amplitude modulation
Frequency conversion
Frequency synthesizers
Low pass filters
OFDM
Phase locked loops
Satellites
Signal generators
Signal synthesis
Ultra wideband technology
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Zusammenfassung:A semi-dynamic regenerative frequency divider for MB-OFDM UWB hopping carrier generation is presented. With the ratio of 7.5, it provides quadrature symmetric 528 MHz deviation for direct frequency synthesis. Realized in 0.18 /spl mu/m CMOS, the chip occupies 0.8/spl times/0.85 mm/sup 2/. The synthesizer achieves -20 dBc image suppression while consuming 18 mW from a 1.8 V supply.
ISSN:0193-6530
2376-8606
DOI:10.1109/ISSCC.2005.1493941