من طرف بسم الله الرحمن الرحيم
السلام عليكم ورحمة الله وبركاته
First of all lets define the Four Fundamintal Probarties of AntenNa:
1- Gain: The Amount of of increase in energy that an antenna adds to a radioFrequency RF
2- Direction: the shape of the transmission pattern (AS the gain of directional ANTENNA increases the angle of radiation usually decreases ). Measured in Degree.
3-Beamwidths: the coveaged Area
4-Polarization: (wave polarization) is an expression of the orientation of the lines of electric flux in an electromagnetic field .
| Directional Antenna | Omni Antenna |
| you can deliver the RF in particular direction but the Effect beamwidth decreases | deliver very long communcations distances but has no draw back which is poor coverage below the antnna |
| help full in near LOS Coverage : hallways, long corridors, isle structures with spaces in between you can not cover a large areas | it cover more area near the AP Access point so it provide perfect coverage for indoor environment |
Thanks you for your time, im ready to Answer all your Question related to this topics...
Regares and have nice day ........................................
