Signal amplitude
Frequency
Cut-off frequency db
Cut-off frequency fg
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Chapter The internal lightning protection system
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VSWR
The (VSWR) Voltage Standing Wave Ratio the ratio
between outgoing and reflected wave. The bandwidth generally defined
as the width the frequency band where power
damping less than dB. Standing
waves can occur if, for example, there terminat-
ing impedance the cable, two cables differ-
ent impedances are connected together, for example
a Ohm coaxial cable with Ohm coaxial cable. Capacitive and/or
inductive component properties ensure signal damp-
ing higher frequencies. From this point on-
wards, the signal has lost 50% dB) its input
power.
If there mismatch, e. the absence any
values, the cut-off frequency generally relates so-
called systems. The critical point de-
scribed the cut-off frequency fg. Technically, the “data volume”
is, however, fact the data rate.
In data technology the bandwidth often described
as the “data volume”. The data rate and
bandwidth are often different from one another.
Cut-off frequency fg
The cut-off frequency describes the frequency-de-
pendent behaviour the arrestors. The cut-off frequency determined according
to certain measuring criteria.TBS
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Insertion loss
Return loss
Diagram: Insertion loss and return loss measured using
a network analyser.g.
Bandwidth
The bandwidth (B) describes the difference mag-
nitude between the two frequencies either end a
frequency band. case open or
short-circuited end cable, this can result the
doubling cancellation the signal wave
