TuTorial
taBLE II
22-Way Po WEr dIvIdEr PErforMancE
Parameter
Frequency GHz
Measured
Theory
Input VSWR
Output VSWR
1.7
0.1 to 4
1.08
1.18 max
1.0
1.04
Path loss (dB)
1.7
16. 8 max
16. 3
Unbalance (dB)
1.7
0.2 max
0
Isolation (dB)
Isolation (dB)
1.7
0.1 to 4
31 to 33
28 min
32. 7
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taBLE III
sPEcIfIcatIons for a BroadBand 8-Way Prd
Parameter
Specification
Units
Frequency
Input VSWR
475-7700
1.8:1
7700-8050
1.8:1
MHz
Max
Output VSWR
2:1
2:1
Max
Path Loss
13. 5
14.0
dB Max
Ripple
1.4
2.2
dB Max
Unbalance
1.4
1.6
dB Max
Isolation
18
18
dB Min
Wilkinson divider would not be prac-
tical. Cascaded unequal power split
Wilkinson dividers would be complex,
large and lossy.
TAPER
INPUT
RESISTOR
INSTALLATION
BroadBand (475 to 8050
MHz) 8-Way Prd
This unit is an 8-way partial resistor
divider, which covers the frequency
range from 475 to 8050 MHz. Resis-
tor dividers were a real possibility, but
would have had an unacceptably high
(approximately 20 dB, including cir-
cuit loss) path loss.
