SG3_200202_279_PalomarNice'ppt

1
Palomar ISO 18000-6 submission presented
by Ulrich Friedrich, Atmel Germany GmbH email
ulrich.friedrich_at_hno.atmel.com
2
The project framework of Palomar - IST-1999-10339
PAssive based on backscatter technique, no
battery LOng range up to 4 meters in an
anechoic chamber single dipole antenna _at_
tag Multiple Access Anticollision high
frequency RFID UHF considering - European
regulations - on-going discussions about
world-wide regulations
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Who is behind Palomar ?

• VTT
• research institute specialised on RF and
  microwave, Finland
• Idesco (Owner Polar Group, Finland)
• interface to industrial applications in paper
  mill
• development of reader modules, Finland
• Rafsec (Owner UPM-Kymmene Group, Finland)
• interface to paper mill industry
• Label assembly technology based on flip chip,
  Finland
• Atmel Nantes (Atmel Corp. headquartered in San
  Jose, CA)
• RF circuit development based on 0.5 u CMOS
  technology
• production of transponder ICs, France
• Atmel Germany (Atmel Corp. headquartered in San
  Jose, CA)
• project leadership
• transponder IC development, Germany

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Target criteria for the Palomar passive UHF RFID
system
influence of field nulls enhanced operation close
to field nulls interference from other RF services
unknown number of tags
Distance from cm to several meters
- low output power levels
need for high sensitive tags lowest power
consumption flexible data rate adaptation high
speed anticollision
- high sensitive reader channel - easy valid
signal detection
- backscattered power can be very low - effective
modulation techniques - reduced influence of
dynamic power effects to the signal
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Why Palomar ?

• European RF regulations dictate the requirements
  for backscattering RFID systems
• Limitation of the reader RF power radiation is at
  0.5 W ERP
• High signal to noise ratio is necessary if the
  system has to support long distances
• UHF RFID has to be able to coexist with existing
  RF services
• Backscattered power is often in same range as
  their sideband and spurious emissions
• End users want passive RFID systems which are
  able to offer
• operation on a world wide basis
• strategies to avoid communication blocking
• high sensitive tags and readers
• options and possibilities for future applications

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Whats new or different (1)

• Palomar uses synchronous communication on forward
  and return link
• Synchronous communication is less noise sensitive
  than asynchronous communication
• System is based on reader controlled data rate
  management techniques
• Palomar implements modified binary tree
  anticollision scheme
• Arbitration mechanism and strategy is fully
  controlled by the reader
• Arbitration is based on a full duplex link to get
  high speed
• System clock tick generation is based on phase
  shift modulation
• Efficient use of RF power with high SNR
• Technique enables
• Reduced protocol overhead
• Reader controlled spectrum management
• Tag demodulation without on-chip oscillator
  techniques
• Reduced power consumption on the tag IC

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Whats new or different (2)

• Palomar supports a variety of return link
  modulation methods to
• enable efficient spectrum management for
• strategies to avoid blocking of the communication
  (weakness of the backscattered signal)
• high speed communication when using the complete
  available bandwidth
• support phase shift modulation in the return link
  for
• an increased signal to noise ratio
• enabling communication very close to field nulls
  (phase information is independent form the
  backscattered power)
• enable different application scenarios
• Palomar offers a wide range of memory access
  mechanisms
• flexible Tag_ID management
• logical and virtual addressing schemes
• sensor support outside of the memory address
  space
• memory locations outside the on chip memory

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Conclusion

• Palomar is a cohesive synchronous RFID system
  solution
• Palomar is optimised for power and communication
  link efficiency
• Palomar uses known commercially used techniques
• well studied and proven in other RF applications
• new to the field of passive RFID systems
• Palomar is an optimised solution
• conforms to the strict European RF regulations
  for SRD
• satisfies long range communication requirements
• good performance under European regulations
  enables world wide use
• Technical excellence is worth your choice