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.

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Presentation transcript:

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, Duisburg, Germany

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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°

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

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

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.

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