Figure 9-10. Radiation Pattern Of Directional Antenna - Alvarion BreezeNET PRO.11 Series User Manual

Antenna Beamwidth
The directiveness of a directional antenna. Defined as the angle between two half-
power (-3 dB) points on either side of the main lobe of radiation.
Receiver Sensitivity
The minimum RF signal power level required at the input of a receiver for certain
performance (e.g. BER).
EIRP (Effective Isotropic Radiated Power)
The antenna transmitted power. Equal to the transmitted output power minus cable
loss plus the transmitting antenna gain.
P
out
Ct
Gt
Gr
Pl
Cr
Si
Ps
Si = P
out
EIRP = P
BreezeNET PRO.11

Figure 9-10. Radiation Pattern of Directional Antenna

Output power of transmitted in dBm
Transmitter cable attenuation in dB
Transmitting antenna gain in dBi
Receiving antenna gain in dBi
Path loss in dB
Receiver cable attenuation is dB
Received power level at receiver input in dBm
Receiver sensitivity is dBm
- Ct + Gt - Pl + Gr - Cr
- Ct + Gt
out
9-21
Appendix
User's
Guide