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14-8
MEASUREMENT
PROCEDURE
.Step 1
The measurement of a Device Under Test (DUT) us-
ing the Millimeter Wave mode is quite similar to one
using a coaxial measurement technique. However,
due to the more complex nature of the Millimeter
Wave System equipment, additional care must be
taken to ensure that everything is set up properly.
Depending upon the type of measurement being per-
formed, the setup may vary. The following is a de-
scription of a typical measurement procedure for a
passive two-port DUT.
.Step 2
Verify Correct Band Definition.
Use Menu MMW1 (top left) to examine the current
millimeter wave band selection, and Menu MMW2
(bottom left) to examine the current module selec-
tions to be sure that they match the installed hard-
ware. Examine MenuMMW4 (next page) to verify
that the band equations are set correctly. If there is
any doubt whether the setting are correct, use the
DEFAULT EQUATIONS selection to reset them.
.Step 3
Verify Correct Setup For System.
The safest way to do this is to press the
Default
key
twice. This returns the system to the proper fre-
quency range and power settings for the current mil-
limeter wave hardware configuration. It is very im-
portant that the RF sources be set to the correct
power levels. Set Source 1 (LO) to +17 dBm and
Source 2 (RF) to +13 dBm.
.Step 4
Perform And Verify An RF Cal.
The system may now be calibrated using an appro-
priate ANRITSU Calibration Kit. Be sure to load the
calibration kit information from the provided floppy
disk into the instrument first. The default calibra-
tion type is Offset-Short, but an LRL/LRM calibra-
tion may also be used. See Chapters 4 and 7 for help
with RF Calibration details. Consult Table 14-4 for
limitations on which calibrations may be performed
as a function of the module types installed.
.Step 5
Attach the DUT.
Use the calibrated torque wrench provided with the
Calibration Kit to tighten the waveguide flange re-
taining screws on the DUT. This results in more re-
producible measurements.
MEASUREMENT PROCEDURE
MILLIMETER WAVE
14-22
37XXXC OM
MENU MMW2
MILLIMETER WAVE
TEST SET MODULES
PORT 1 MODULE
3740/3741/NONE
PORT 2 MODULE
3740/3741/NONE
ACCEPT CONFIG
PRESS <ENTER>
TO SELECT
MENU MMW1
MILLIMETER WAVE
TEST SET BAND
WR-22
(33 - 50 GHz)
WR-15
(50 - 75 GHz)
WR-12
(60 - 90 GHz)
WR-12 EXTENDED
(56 - 94 GHz)
WR-10
(75 - 110 GHz)
WR-10 EXTENDED
(65 - 110 GHz)
WR-8
(90 - 140 GHz)
PRESS <ENTER>
TO SELECT
Содержание 37 C Series
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Страница 582: ...37100C 37200C 37300C Vector Network Analyzers Technical Data Sheet Vector Network Analysis up to 65 GHz...