1. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 Slide 1 Impact of Ultra Wide-Band Antennas on Communications in a Spatial Channel Mohamed El-Hadidy & Thomas Kaiser University of Duisburg-Essen Faculty of Engineering, Department of Communication Systems, Bismarckstr. 81, 47057 Duisburg, Germany Email: el-hadidy@nts.uni-due.de

2. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 Slide 2 Mathematical frame of UWB system model How the whole chain of the UWB transmisson modeled, including the antennas‘ effects? Omni-directional or Directionl antennas? Impact of antennas on the spatial channel and some simulation results. Future work Outline

3. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 Slide 3 UWB System Model

4. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 Slide 4 UWB System Model

5. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 Slide 5 UWB System Model

6. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 Slide 6 UWB System Model

7. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 Complete UWB Chain TxRx Ant_TxAnt_Rx Channel IEEE Ray Tracing Directional Omni-Directional

8. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 Complete UWB Chain TxRx Ant_TxAnt_Rx Channel **

9. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 Slide 9 First Channel Impulse Response of the Environment

10. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 IEEE Channel Model

11. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 Slide 11 Ray-tracing Channel Model x10 -7

12. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 Discrete Channel Impulse Response

13. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 Slide 13 Second Antenna Impulse Response &

14. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 HFSS Radiation Pattern of Horn Antenna Freq = 6.5 GHz

15. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 HFSS  Gain in dB from Radiation Pattern Freq = 3 GHz

16. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 HFSS  Gain in dB from Radiation Pattern Freq = 3.5 GHz

17. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 HFSS  Gain in dB from Radiation Pattern Freq = 4 GHz

18. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 HFSS  Gain in dB from Radiation Pattern Freq = 4.5 GHz

19. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 HFSS  Gain in dB from Radiation Pattern Freq = 5 GHz

20. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 HFSS  Gain in dB from Radiation Pattern Freq = 5.5 GHz

21. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 HFSS  Gain in dB from Radiation Pattern Freq = 6 GHz

22. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 HFSS  Gain in dB from Radiation Pattern Freq = 6.5 GHz

23. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 HFSS  Gain in dB from Radiation Pattern Freq = 7 GHz

24. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 HFSS  Gain in dB from Radiation Pattern Freq = 7.5 GHz

25. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 HFSS  Gain in dB from Radiation Pattern Freq = 8 GHz

26. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 HFSS  Gain in dB from Radiation Pattern Freq = 8.5 GHz

27. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 HFSS  Gain in dB from Radiation Pattern Freq = 9 GHz

28. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 HFSS  Gain in dB from Radiation Pattern Freq = 9.5 GHz

29. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 HFSS  Gain in dB from Radiation Pattern Freq = 10 GHz

30. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 Slide 30 Bowtie Antenna Antenna radiation pattern

31. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 Slide 31 Step Response of Bowtie Antenna

32. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 Slide 32 Overall Channel Impulse Response Directional Ideal Omni- Directional Rotating Tx by 90° Rotating Tx & Rx by 90°

33. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 Slide 33 Rotation of Tx Antennas in SISO System

34. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 Slide 34 Omni-Directional vs. Directional Antennas in SISO & MISO

35. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 Slide 35 Future Work Investigating the diversity added to the UWB MIMO system using the antennas’ impact (e.g. using different types of antennas, rotating the antennas, etc.) Investigating the coupling effect appearing among the neighbouring antennas either at transmit or receive sides for UWB MIMO system. Embedding the whole antenna properties which is angular and frequency dependent into the system like polarization and input impedance, etc.

36. Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen Crowncom, Juni 10, 2006 Slide 36