Huawei Airbridge CBTS3612-800 User Manual page 12

User Manual
Airbridge cBTS3612-450 12-carrier CDMA Base Station
Reflection Coefficient G
Γ=
Γ =
Γ=
03Q-0112-20020720-120
Ureflected
VSWR=
Uforward
1
RL
alg
( )
20
VSWR−1
VSWR =
VSWR+1
5 Return Loss, VSWR and Reflection Coefficient
VSWR
Uforward+Ureflected
Uforward - Ureflected
1+Γ
VSWR=
1−Γ
RL
alg
( )
+ 1
20
−
RL
( )
alg
1
20
Return loss(dB)
Uforward
RL= 20lg
Ureflected
1
RL= 20lg
Γ
VSWR+ 1
RL= 20lg
VSWR − 1
5-2