Agilent Technologies 8510C, Руководство по эксплуатации и программированию

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9
Transmission Measurements
Introduction
This part of the Agilent 8510 net w ork analyzer system man ual explains ho w to make the
follo wing transmission measuremen ts on a t ypical t w o-p ort device:
Insertion loss and gain
Insertion phase
S-parameters
Group dela y
Electrical dela y
Deviation from ideal phase
Also included is the description of the pro cedure used to measure noninsertable devices. These
measuremen ts are describ ed individually , eac h with separate setup, measuremen t calibration,
and measuremen t sequences.
Measuring Tw o-P ort Devices
When planning a test sequence for a t w o-port device, there are t w o imp ortant factors to
consider: the t yp e of t w o-port device y ou are going to measure and the t yp e of test set in y our
system.
There are generally three kinds of t w o-p ort devices ( Figure 9-1 ), as listed b elow:
Insertable The p ort 1 connector t yp e will mate with the p ort 2 connector
t yp e (p ort 2 is of the same family but is of opp osite sex to that
of p ort 1).
Rev ersible Rev ersible devices use the same connector t yp e on b oth p ort 1
and p ort 2 (p ort 2 is the same family and same sex as p ort 1).
T ransitional T ransitional devices use connectors from dieren t families on
p ort 1 and p ort 2.
Both rev ersible and transitional devices are called \noninsertable." Only hermaphro ditic
(sexless) connectors, like the standard 7 mm, are b oth insertable and rev ersible.
Figure 9-1. Tw o-P ort Device Types
Transmission Measurements 9-1