An IR UWB Research and Development Platform for 802.15 · INSTITUT FÜR NACHRICHTENTECHNIK UND HOCHFREQUENZTECHNIK An IR UWB Research and Development Platform for 802.15.4a Michael

INSTITUTFÜR NACHRICHTENTECHNIKUND HOCHFREQUENZTECHNIK

An IR UWB Research and An IR UWB Research and Development PlatformDevelopment Platform

for 802.15.4afor 802.15.4a

Michael FischerAyse Adalan

2009-04-15

4th UWB Forum onSensing and Communication

Vienna University of Technology

2 / 192009-04-15 UWB Forum Vienna – Michael Fischer – R&D Platform for 802.15.4a

OutlineOutline

Background

Platform Overview

Transmitter Components

Validation Measurements

Conclusion and Outlook


Background

[1] IEEE 802.15.4a,Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specifications forLow-Rate Wireless Personal Area Networks (WPANs):Alternate PHYs,IEEE, Park Avenue, NJ, 2007

Platform based on architecture presented in[2] M. Fischer, A. Adalan, A.L. Scholtz, Ch. Mecklenbräuker;

Architecture of a Modular IEEE 802.15.4a Ultra-Wideband Transmitter; Informationstagung Mikroelektronik 08, Wien; 15.10.2008 - 16.10.2008; Österreichischer Verband fürElektrotechnik, Nr. 50 (2008); pp. 284 - 288


Background IEEE 802.15.4a

IEEE 802.15.4a utilizing different frequency bands

Different modulation schemes and bitrates inside frame

Common parameters:pulse repetition frequency (PRF) = 499,2 MSymbols/spulse / chip duration TC = 2 nsternary symbols {−1, 0, +1}


System Overview

FPGA

MGT

MGT

3993,6 MHz124,8 MHz

10 MHz

+

−

CPU

Rx


Xilinx Virtex II ProOutput via two MGTs (RocketIO)

Power combiner with baluns

Baseband Signal Generation (1)

[3] T. Buchgraber, Experimental Evaluation of the IEEE 802.15.4a Standard, Diploma Thesis, Graz University of Technology, 2008






Pulse Shaping

Ensure compliance with constraints in time and frequency domainTake into account all components of the transmitterChannel dependant bandwidth

[4] A. Adalan, M. Fischer, A.L. Scholtz, Ch. Mecklenbräuker; UWB Transmit Signal Generation for Efficient Spectral Mask Utilisationin IEEE 802.15.4a; 3rd IEEE UWB Forum on Sensing and Communications, (2008), 24p


Upconversion

Triple balanced passive mixerIntegrated balunsLO: +10 dBmRF: 1000 MHz to 5000 MHz


Output Filter

Suppress higher mixing products

Ensure spectral compliance

Monolithic ormicrostrip solution

Possible combinationwith antenna


Antennas

Different Vivaldi antennas and bow-tie antennas in use

[5] J. Shin, D. Schaubert; A Parameter Study of Stripline-Fed Vivaldi Notch-Antenna Arrays; IEEE Transactions on Antennas and Propagation, Vol. 47, No. 5, pp. 879-886, May 1999

[6] W. Sörgel, C. Waldschmidt, W. Wiesbeck, Transient Responses of a Vivaldi Antenna and a Logarithmic Periodic Dipole Array for Ultra Wideband Communication, IEEE Antennas and Propagation Society International Symposium, Vol. 3, pp. 592-595, Columbus, Ohio, June 2003

[7] W. Sörgel, C. Waldschmidt, W. Wiesbeck, An Ultra Wideband Aperture Coupled Bow Tie Antenna for Communications, EUROEM 2004, Magdeburg, July 2004


Reference Synthesizer

3993,6 MHz synthesizer+5 dBm sine output−14 dBm rect. output

PLL-IC Analog Devices ADF4153

10 MHz oven controlledquartz oscillator reference Microcontroller forstart-up

[8] R. Langwieser, M. Fischer, A.L. Scholtz, M. Rupp, G. Humer; Flexible Radio Frequency Hardware for a Software Definable Channel Emulator; International Conference on Telecommunications and Computer Networks (IADAT), Portsmouth, UK; 27.09.2006 - 29.09.2006; 5p


Clock Divider

Differential clock for FGPA3993,6 MHz : 32 = 124,8 MHz32 = 2 · 4 · 4Single ended and LVPECL technology

Input: −14 dBmOutput: LVDS


System Overview


Conclusion and OutlookConclusion and Outlook

Transmitter hardware up and runningReal time scope used as offline receiver

IEEE 802.15.4a standard compliant impulse-radio UWB platformHighly modular and flexible

Ongoing optimization of componentsAdaption of the platform to measurement campaignsDesign of dedicated online receiver hardware


References

[1] IEEE 802.15.4a, Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specifications for Low-Rate Wireless Personal Area Networks (WPANs): Alternate PHYs, IEEE, Park Avenue, NJ, 2007

[2] M. Fischer, A. Adalan, A.L. Scholtz, Ch. Mecklenbräuker;Architecture of a Modular IEEE 802.15.4a Ultra-Wideband Transmitter; Informationstagung Mikroelektronik 08, Wien; 15.10.2008 - 16.10.2008; Österreichischer Verband für Elektrotechnik, Nr. 50 (2008); pp. 284 – 288

[3] T. Buchgraber, Experimental Evaluation of the IEEE 802.15.4a Standard, Diploma Thesis, Graz University of Technology, 2008

[4] A. Adalan, M. Fischer, A.L. Scholtz, Ch. Mecklenbräuker; UWB Transmit Signal Generation for Efficient Spectral Mask Utilisation in IEEE 802.15.4a; 3rd IEEE UWB Forum on Sensing and Communications, (2008), 24p

[5] J. Shin, D. Schaubert; A Parameter Study of Stripline-Fed Vivaldi Notch-Antenna Arrays; IEEE Transactions on Antennas and Propagation, Vol. 47, No. 5, pp. 879-886, May 1999

[6] W. Sörgel, C. Waldschmidt, W. Wiesbeck, Transient Responses of a Vivaldi Antenna and a Logarithmic Periodic Dipole Array for Ultra Wideband Communication, IEEE Antennas and Propagation Society International Symposium, Vol. 3, pp. 592-595, Columbus, Ohio, June 2003

[7] W. Sörgel, C. Waldschmidt, W. Wiesbeck, An Ultra Wideband Aperture Coupled Bow Tie Antenna for Communications, EUROEM 2004, Magdeburg, July 2004

[8] R. Langwieser, M. Fischer, A.L. Scholtz, M. Rupp, G. Humer; Flexible Radio Frequency Hardware for a Software Definable Channel Emulator; International Conference on Telecommunications and Computer Networks (IADAT), Portsmouth, UK; 27.09.2006 - 29.09.2006; 5p


Thank You for Your AttentionThank You for Your Attention

Questions?

Michael FischerVienna University of TechnologyInstitute of Communications and Radio Frequency [email protected]

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An IR UWB Research and Development Platform for 802.15 · INSTITUT FÜR NACHRICHTENTECHNIK UND HOCHFREQUENZTECHNIK An IR UWB Research and Development Platform for 802.15.4a Michael