Huawei Technologies Co. Ltd ODU3601C-800 사용자 설명서
User Manual
iSiteC ODU3601C CDMA Soft Base Station
iSiteC ODU3601C CDMA Soft Base Station
BTS Maintenance
Appendix B Return Loss, VSWR and Reflection Coefficient
B-2
The calculation formulas for reflection coefficient
Γ
, return Loss (RL), and VSWR are
displayed in the following table:
Reflection coefficient
Γ
VSWR
Return loss (dB)
Γ
=
Ureflected
Uforward
VSWR=
Uforward+Ureflected
Uforward
Ureflected
RL=
Uforward
Ureflected
20lg
Γ
=
1
alg
( )
RL
20
20
VSWR=
1+
Γ
1
−Γ
RL=
1
Γ
20lg
Γ
=
VSWR
−1
VSWR+1
VSWR =
alg
( )
RL
20
−
1
alg
( )
RL
20
20
+
1
RL=
VSWR+1
VSWR
−1
20lg
In the above formulas, Uforward stands for forward voltage and Urelected for reverse
voltage.