Radio propagation and free space attenuation
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Radio propagation and free space attenuation
| Course | UNIK4700, UNIK9700 |
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| Title | Radio propagation - II |
| Lecture date | 2013/09/20 0915-1200 |
| presented | by Josef Noll |
| Objective | The objective of this lecture is to explain the principles of radio propagation. |
| Learning outcomes | What will we learn today
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| Pensum (read before) | |
| References (further info) | References:
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| Keywords | Radiation, SAR, EIRP, Antennas Systems |
this page was created by Special:FormEdit/Lecture, and can be edited by Special:FormEdit/Lecture/Radio propagation and free space attenuation.
Test yourself, answer these questions
- What the difference between EIRP (Effective Isotropic Radiated Power) and ERP (Effective Radiated Power)?
- What is the difference between isotropic and non isotropic sources?
- Explain half power beamwidth and first null beamwidth.
- What are the parameters for the radio propagation, taken a realistic system in mind?
- What is the fading margin?
- How do Receiver sensitivity relate to received power?
- What effect does the bandwidth of the signal has on the communication link?
- Why does a 20 Mbit/s datalink use more capacity than a voice call of e.g. 16 kbit/s? (to factors)
- What are the relations between Mbit/s and MHz?
Examples for UMTS
- Use Widermind (see references) for calculating typical values for the radio propagation in UMTS.
