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OPERATION MANUAL
P/N: 10410-00175
REVISION A:
PRINTED: JULY 1995
COPYRIGHT 1995 WILTRON COMPANY
54000-6WRXX Millimeter Wave Reflectomet er
Figure 1. 54000-MM Ser ies Module Shown With Model 54147A Scalar Measurement System
1. INTRODUCTION
The WILTRON 54000-6WR10 and -6WR15 are
compact, int egrated, waveguide, millimeter (mm)
wave, multiplied reflect ometers with an output frequency range o f 75 to 110 GHz and 50 to 75 GHz,
respectively.
These modules combine source multiplication, reference sampling, and reflection measurement in a
single compact package. When used with WILTRON scalar network analyzer sys tems, they provide complete ratioed reflection measurements
from 75 to 110 GHz or 50 to 75 GHz.
2. DESCRIPTION
The RF input (Figure 2) passes through an isolator and is then doubled. The doubled signal is
then amplified, passed through a tuner and a lowpass filter and multiplied again (X2 fo r -6WR15
and X3 for -6WR10). At this point the 75 to
110 GHz or 50 to 75 GHz signal is passed externally through user-selectable filters and then back
into the unit. From there the signal passes
through an isolator and dual-directional coupler to
the Test Port. Detectors on the coupler’s coupled
arms provide the reference and reflection outputs.
During the remainder of this manual, the 540006WR10 and -6WR15 will be referred to as Reflectometer.
490 JARVIS DRIVE ● MORGAN HILL, CA 95037-2809
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+7 dBm
OUTPUT
RF INPUT
REFLECTION
12.5-18.75 GHz
TEST PORT
Figure 2. WILTRON 54000-6WR15 mm Reflectometer
OUTPUT
DETECTOR
DETECTOR
REFERENCE
POWE R IN P UT
REFLECTOMETER
MILLIMETER WAVE MULTIPLIER
50 GHz to 75 GHz
3. POWER CONNECTION
The Reflectomet er requires DC power of +15V
±0.5V at 550 mA. The connector on the unit is a female BNC “twinax” with +15V on the female cen-
ter pin. A WILTRON P/N A36599 power cable is included to connect directly to below-listed WILTRON instruments that provide rear panel auxiliary +15V power.
54xxA/SM4356
•
541xxA/Option 16
•
68xxxB (≤20 GHz)/SM4957
•
68xxxB (>20 GHz)/SM4954
•
An adapter (female twinax to dual banana plug),
Wiltron P/N SM4816, is available on Special order.
This adapter, in conjunction with cable A36599,
will allow connection to any power supply that has
banana terminals on 0.75-inch (19 mm) centers.
4. OPERATION AS A mm WAVE SOURCE
The following procedure describes how to operate
the mm Wave Reflectometer as a st and alone
source.
Step 1. Connect DC power to the Reflectometer
POWER INPUT connector as described
in paragraph 3 above. (See Figure 3.)
Step 2. Connect an RF source to the Reflectome-
ter RF INPUT connector.
The level should be +7 dBm ±1 dB at
the input co nnec tor.
+15 VDC
54000-6WR15
HARMONIC FILTER
Source freque ncy is 12.5–18.75 GHz for
WR15 modules and 12.5–18.333 GHz for
WR10 modules.
Step 3. The mm wave signal is available at the
TEST PORT.
Step 4. If leveling is desired, and t he source is
capable of external leveling, connect the
Reflectometer REFERENCE DETECTOR
OUTPUT to the appropriat e connector
on the source. Refer to the Operation
Manual for the source.
5. OP ER ATION IN S CA L AR m m WAVE
MEASUREMENTS
The following procedure describes how to operate
the mm wave r eflectometer in a scalar measurement syst em.
Step 1. Connect DC power to the Reflectometer
POWER INPUT connector as described
in paragraph 3 above.
Step 2. Connect an RF source, 12.5–18.33 GHz
to the Reflectometer RF INPUT connec-
tor.
The level should be +7 dBm ±1 dB at
the input co nnec tor.
Source freque ncy is 12.5–18.75 GHz for
WR15 modules and 12.5–18.333 GHz for
WR10 modules.
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>
>
R
BA
DUT
REFLECTOMETER
MILLIMETER WAVE
TRANSMISSION
DETECTOR
+15V DC
WILTRON
54100A SERIES SCALAR
MEASUREMENT SYSTEM
TEST
PORT
Figure 3. WILTRON 54000-6WRXX mm Reflectometer
Step 3. If leveling is desired, and t he source is
capable of external leveling, connect the
Reflectometer REFERENCE DETECTOR
OUTPUT to the appropriat e connector
on the source. Refer to the Operation
Manual for the source.
Step 4. If ratioed Transmission measurements
are desired, and the Scalar Network
Analyzer has an “R” Channel, connect
the Reflectometer REFERENCE DETEC-
TOR OUTPUT connector to the Analyzer
R input using the 560-10BX-2 cable provided.
NOTE
Leveling and ratioed measurements cannot be done simultane ously.
Step 5. Connect the reflectometer REFLEC-
TION DETECTOR OUTPUT to the Analyzer Channel B input.
Step 6. Connect a WILTRON 54000-7WR10 or -
7WR15 detector to the TEST PORT and
the Analyzer Channel A input as appropriate. Perfo rm a Transmission/Reflection Calibration on the Analyzer. Refer
to the Operation Manual for the Analyzer.
Step 7. Remove the detector from the Test Port
and insert the device to be tested.
6. SP EC IF ICATIONS
Performanc e specifications for the WILTRON
54000-MM Series Reflectometers are given in
Tables 1 and 2.
7. ACCESSORIES
The following accessories are included with t he reflectometer:
DC Power Cable P/N A36599
•
Detector Cable P/N 560-10BX-2 (2 ea)
•
Filter FL1 75–110 GHz or 50–75 GHz
•
Filter FL2 75–92 GHz or 50–58 GHz
•
Filter FL3 89–110 GHz or 57–75 GHz
•
W av eguide sec tion, WR10 or WR15, 1 inch (25
•
mm)
Flush short
•
54000-6WRXX Page 3
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Table 1. Performance Specifications, 54000-6WR10 Module
DC POWER INPUT
Current:
Voltage:
Connector:
550 mA max
+15 VDC ±0.5V
BNC Twinax femal e connector, +15V on
female pin
RF INPUT
Frequency Range:
Level:
Connector: N Female
+7 dBm ±1 dB
12.5–18.33 GHz
NOTE
–6 0 dBc harmonics and spurs required to
make output harmonic and spur specifications with FL2 and FL3
TEST PORT
Frequency Range:
Frequency Accuracy: Source Dependent, 6x Source
Frequency Resolution: Source Dependent, 6x Source
Table 2. Performance Specifications, 54000-6WR15 Module
75–110 GHz
Power:( with Fl1 Installed): –5 dBm Minimum, +1 dBm
Typical, ±3 dB Variation Typical
Harmonics And Spurs:
FL1 (75–110 GHz): –20 dBc typical
FL2 (75–92 GHz): –55 dBc max
FL3 (89–110 GHz): –55 dBc max
Directivity:
Source Match: 1.9:1 VSWR max
Waveguide: WR-10, compatible with MIL-F-
35 dB min, 40 dB typical
3922/67B-010, UG-387/U flange
Modula t ion:
AM: Not Recommended
FM: 6x source deviation
Pulse:
DIMENSIONS
Length: 7.47 inches (190 mm)
Width: 4.10 inches 104 mm)
Heigth: 1.56 inches (40 mm)
OK
DC POWER INPUT
Current:
Voltage:
Connector:
550 mA max
+15 VDC ±0.5V
BNC Twinax femal e connector, +15V on
female pin
RF INPUT
Frequency Range:
Level:
Connector: N Female
+7 dBm ±1 dB
12.5–18.75 GHz
NOTE
–6 0 dBc harmonics and spurs required to
make output harmonic and spur specifications with FL2 and FL3
TEST PORT
Frequency Range:
Frequency Accuracy: Source Dependent, 4x Source
Frequency Resolution: Source Dependent, 4x Source
50–75 GHz
Power:( with Fl1 Installed): 0 dBm Minimum, +5 dBm
Typical, ±3 dB Variation Typical
Harmonics And Spurs:
FL1 (50–75 GHz): –20 dBc typical
FL2 (50–58 GHz): –55 dBc max
FL3 (57–75 GHz): –55 dBc max
Directivity:
Source Match: 1.9:1 VSWR max
Waveguide: WR-15, compatible with MIL-F-
35 dB min, 40 dB typical
3922/67B-008, UG-385/U flange
Modula t ion:
AM: Not Recommended
4x source deviation
FM:
Pulse: OK
DIMENSIONS
Length: 7.47 inches (190 mm)
Width 4.10 inches 104 mm)
Heigth: 1.56 inches (40 mm)
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