Description
Abridged ividers/Combiners Glossary
Isolation
Output Amplitude Tracking
Output Phase Tracking
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Power
Dividers Products
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Series UVOPD Microwave Power Dividers/Combiners
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• Wilkinson and Fork Type Design
• Up to 16 Outputs
Description
Power dividers/combiners are passive components that divide an input signal into two or more
identical output signals, or combine multiple signals into one output signal.
The basic measure of quality of a power divider is measured in terms of its ability to provide
identical outputs. Equal output capability is determined by the actual impedance isolation of the
divider. All of A .Uvitech’s components in this section are isolated power dividers that provide a
high isolation between output ports.
The high isolation between ports prevents the output at one port not to be severely affected by an
impedance mismatch at another output port. Thus, the isolated power divider is the ideal power
divider for any application and can function as a hybrid with the difference port internally
terminated.
Power dividers are usually built in octave, as well as extreme wide bandwidths (even decades and
greater). Octave band units are of the Wilkinson or Fork-type, using discrete lumped resistors.
VSWR increases outside the specified band.
A .Uvitech's power divider/combiners can comply with military specifications, if so desired.
Abridged Dividers/Combiners Glossary
Isolation
Isolation is the ratio, expressed in decibels (dB), between the input power to one of the power
combiner input ports to any other input port with matched terminations on all other ports. High
isolation is required for the most demanding power divider applications.
Output Amplitude Tracking
The difference in the signal amplitude at the output ports is called output amplitude tracking error or
output amplitude unbalance. It is the ratio of the maximum signal at any port to the minimum signal
of any other port, expressed in decibels. Typically, the maximum output tracking specified is very
low, for example, 0.3 dB for two-way dividers, and increases with a higher number of output ports
to 1.0 dB for the eight-way power divider.
Output Phase Tracking
The difference in the signal phase at the output ports is defined as the output phase tracking error or
unbalance. It is the maximum deviation that is specified; usually the average phase is much less,
especially at low frequencies.
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