Model C1015J5003AHF
Rev A
Definition of Measured Specifications
Parameter
Definition
The impedance match of the
coupler to a 50Ω system. Return
Loss is an alternate means to
express VSWR.
The input power divided by the
sum of the power at the two
output ports.
The input power divided by the
sum of the power at the two
output ports.
The difference in power between
the two outputs.
The difference in phase angle
between the two output ports.
Mathematical Representation
i, j, k, m
is denoted as the port index of input, isolated, direct
and coupled port for specific pin configuration shown in the table
Return Loss
20 log
10
(
S
ii
)
20log
10
S
ji
Isolation
Insertion Loss
Amplitude
Balance
Phase Balance
10 log
10
(
S
mi
+
S
ki
)
2
2
20log
10
(
S
ki
)
S
mi
∠
S
ki
− ∠
S
mi
+
90
o
*100%
RF test is performed per spec definition for pin configuration 1 and port 1 (input port) is connected to pin1, port 2 (isolated port) is connected to
pin 3, port 3 (direct port) is connected to pin 4 and port 4 (isolated) is connected to pin 6.
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