mohamed el-hadidy and thomas kaiser university of duisburg-essen crowncom, juni 10, 2006 slide 1...
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![Page 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](https://reader035.vdocuments.site/reader035/viewer/2022062422/56649f185503460f94c2ece8/html5/thumbnails/1.jpg)
Slide 1Mohamed El-Hadidy and Thomas Kaiser
University of Duisburg-EssenCrowncom, Juni 10, 2006
Impact of Ultra Wide-Band Antennas onCommunications in a Spatial Channel
Impact of Ultra Wide-Band Antennas onCommunications 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: [email protected]
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Slide 2Mohamed El-Hadidy and Thomas Kaiser
University of Duisburg-EssenCrowncom, Juni 10, 2006
• 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
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Slide 3Mohamed El-Hadidy and Thomas Kaiser
University of Duisburg-EssenCrowncom, Juni 10, 2006
UWB System Model
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Slide 4Mohamed El-Hadidy and Thomas Kaiser
University of Duisburg-EssenCrowncom, Juni 10, 2006
UWB System Model
![Page 5: 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](https://reader035.vdocuments.site/reader035/viewer/2022062422/56649f185503460f94c2ece8/html5/thumbnails/5.jpg)
Slide 5Mohamed El-Hadidy and Thomas Kaiser
University of Duisburg-EssenCrowncom, Juni 10, 2006
UWB System Model
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Slide 6Mohamed El-Hadidy and Thomas Kaiser
University of Duisburg-EssenCrowncom, Juni 10, 2006
UWB System Model
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Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen
Crowncom, Juni 10, 2006
Complete UWB Chain
Tx Rx
Ant_Tx Ant_RxChannel
IEEE Ray Tracing
Directional Omni-Directional
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Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen
Crowncom, Juni 10, 2006
Complete UWB Chain
Tx Rx
Ant_Tx Ant_RxChannel
* *
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Slide 9Mohamed El-Hadidy and Thomas Kaiser
University of Duisburg-EssenCrowncom, Juni 10, 2006
FirstChannel Impulse Response
of the Environment
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Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen
Crowncom, Juni 10, 2006
IEEE Channel Model
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Slide 11Mohamed El-Hadidy and Thomas Kaiser
University of Duisburg-EssenCrowncom, Juni 10, 2006
Ray-tracing Channel Model
x10-7
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Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen
Crowncom, Juni 10, 2006
Discrete Channel Impulse Response
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Slide 13Mohamed El-Hadidy and Thomas Kaiser
University of Duisburg-EssenCrowncom, Juni 10, 2006
SecondAntenna Impulse Response
&
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Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen
Crowncom, Juni 10, 2006
HFSS Radiation Pattern of Horn Antenna
Freq = 6.5 GHz
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Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen
Crowncom, Juni 10, 2006
HFSS Gain in dB from Radiation Pattern
Freq = 3 GHz
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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
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Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen
Crowncom, Juni 10, 2006
HFSS Gain in dB from Radiation Pattern
Freq = 4 GHz
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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
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Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen
Crowncom, Juni 10, 2006
HFSS Gain in dB from Radiation Pattern
Freq = 5 GHz
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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
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Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen
Crowncom, Juni 10, 2006
HFSS Gain in dB from Radiation Pattern
Freq = 6 GHz
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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
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Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen
Crowncom, Juni 10, 2006
HFSS Gain in dB from Radiation Pattern
Freq = 7 GHz
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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
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Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen
Crowncom, Juni 10, 2006
HFSS Gain in dB from Radiation Pattern
Freq = 8 GHz
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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
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Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen
Crowncom, Juni 10, 2006
HFSS Gain in dB from Radiation Pattern
Freq = 9 GHz
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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
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Mohamed El-Hadidy and Thomas Kaiser University of Duisburg-Essen
Crowncom, Juni 10, 2006
HFSS Gain in dB from Radiation Pattern
Freq = 10 GHz
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Slide 30Mohamed El-Hadidy and Thomas Kaiser
University of Duisburg-EssenCrowncom, Juni 10, 2006
Bowtie Antenna
Antenna radiation pattern
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Slide 31Mohamed El-Hadidy and Thomas Kaiser
University of Duisburg-EssenCrowncom, Juni 10, 2006
Step Response of Bowtie Antenna
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Slide 32Mohamed El-Hadidy and Thomas Kaiser
University of Duisburg-EssenCrowncom, Juni 10, 2006
Overall Channel Impulse Response
DirectionalIdeal Omni-Directional
Rotating Tx by 90°
Rotating Tx & Rx by 90°
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Slide 33Mohamed El-Hadidy and Thomas Kaiser
University of Duisburg-EssenCrowncom, Juni 10, 2006
Rotation of Tx Antennas in SISO System
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Slide 34Mohamed El-Hadidy and Thomas Kaiser
University of Duisburg-EssenCrowncom, Juni 10, 2006
Omni-Directional vs. Directional Antennas in SISO & MISO
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Slide 35Mohamed El-Hadidy and Thomas Kaiser
University of Duisburg-EssenCrowncom, Juni 10, 2006
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.
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Slide 36Mohamed El-Hadidy and Thomas Kaiser
University of Duisburg-EssenCrowncom, Juni 10, 2006