25-08-2017, 09:32 PM
UWB chips for embedded applications
UWB chips.ppt (Size: 2.58 MB / Downloads: 31)
UWB Technologies (novel band)
Regulation
Free market US (FCC-2002)
Allowed power: 500 µW or -2.55 dBm over 7.5 GHz
European evaluations EU (ETSI)
USB wireless launcher improves speed acceptation
Avoid interferences with UMTS / GPS band
Technology advantages
Wireless high data rates
No interference… Power emission (mask UWB)
Simple techniques ?
Avantages
DSSS-FD-UWB Avantages
Spectrum coverage not connected with pulse width
Double diversities (Hardness of communication)
Optimizations of spectral coverage
Power emission
Conclusion
A new UWB access technique was presented
This technique provides very good spectrum coverage
Frequency diversity used in this technique allows a good robustness against narrow band blockers
Perspective
ICs based in this technique are being developed by STANTEC in low power CMOS technology