UWB ULP pulser prototype

1
Project IEEE 802.15 Working Group for Wireless
Personal Area Networks (WPANs) Submission Title
ULP UWB pulser prototype Date Submitted
16September2004 Source Bart Van Poucke
Company IMEC Address Kapeldreef 75, Leuven,
Belgium 3001 Voice32(0)16 28 12 11, FAX
32(0)16 22 94 00, E-Mailvanpouck_at_imec.be Re
Abstract test results of first 0.18 CMOS
ULP UWB pulser prototype show ultra low power
consumption Purpose Contribute to low power
air-interface definition for body area
applications Notice This document has been
prepared to assist the IEEE 802.15. It is
offered as a basis for discussion and is not
binding on the contributing individual(s) or
organization(s). The material in this document is
subject to change in form and content after
further study. The contributor(s) reserve(s) the
right to add, amend or withdraw material
contained herein. Release The contributor
acknowledges and accepts that this contribution
becomes the property of IEEE and may be made
publicly available by 802.15.
2
ULP UWB Pulser Prototype
Bart Van Poucke IMEC, Wireless
Research bart.vanpoucke_at_imec.be
3
Outline

• Target application
• Design Specification
• Demo Setup
• Measured Performance

4
BAN for medical and sports applications
5
UWB Pulser has been designed in 0.18um logic
technology
Data are Position modulating the pulses (PPM)
Clock frequency defines the pulse rate
Data
Pulse Generator
CK
The pulses can be varied according to these
parameters

• Pulse Bandwidth
• Pulse Modulation Delay (position)
• PulseCenter Frequency

6
UWB Pulser Demo Setup

• Size 0.6x0.6 mm2

3ns UWB Pulses over the air
7
Measured Breakthrough Performance

• Center frequency 3GHz? 5GHz
• Bandwidth 500MHz 2GHz
• Power cons. (per pulse) 100pJ 40pJ
• Output power -10dBm
• Peak amplitude 100mV in 50ohm
• PPM position 4ns ? 25ns
• ACPR 25dB

8
Frequency and bandwidth can be tuned
Measured 500MHz signals
Measured 2GHz signals
9
Data are PPM modulated
500MHz pulses
500MHz pulses PPM modulated at 40MHz
2GHz pulses
10
UWB pulser has ULP consumption for short range

• First full-CMOS implementation of an UWB
  transmitter
• Breakthrough power consumption performances
• Fully compatible with logic process
• Signals agree with the FCC specification mask
  without filtering

50 pJ/pulse _at_ 40 MHz Pulse Repetition Frequency ?
2mW