Agilent Technologies E Series Service manual

Errata
Agilent E-Series E9320 Peak and Average Power Sensors
Operating and Service Guide
Information provided in this supplement is to update the Operating and Service Guide for
E-Series E9320 Peak and Average Power Sensors.
Updates
Accessories Shipped with the Instrument
The following items are shipped with every purchase of E9320 Series power sensors:
• Certificate of Calibration
• E9320 Series Power Sensors Operating and Service Guide
Verify that any options ordered are included with the shipment by checking the packing list
included with the shipment.
©Agilent Technologies, Inc. 2009 - 2011
April 19, 2011
Agilent Technologies
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Operating and
Service Guide
E-Series E9320 Peak
and Average Power
Sensors
e9321_90001.book Page 1 Tuesday, March 18, 2003 10:44 AM

2 E-Series E9320 Operating and Service Guide
General
Information contained in this document is subject to
change without notice. Agilent Technologies makes
no warranty of any kind with regard to this material,
including, but not limited to, the implied warranties of
merchantability and fitness for a particular purpose.
Agilent Technologies shall not be liable for errors
contained herein or for incidental or consequential
damages in connection with the furnishings,
performance, or use of this material. No part of this
document may be photocopied, reproduced, or
translated to another language without the prior
written consent of Agilent Technologies.
Copyright2003-2011 AgilentTechnologies
AgilentTechnologies,Inc.
3501Stevens CreekBlvd.SantaClara, CA95052USA
Manual Part No. E9321-90001
Printed in Malaysia
April 18, 2011
Legal Information
Certification
Agilent Technologies certifies that this product met its
published specifications at the time of shipment from
the factory. Agilent Technologies further certifies that
its calibration measurements are traceable to the
United States National Institute of Standards and
Technology, to the extent allowed by the Institute’s
calibration facility, and to the calibration facilities of
other International Standards Organization members.
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Safety Symbols
E-Series E9320 Operating and Service Guide 3
Safety Symbols
The following symbols on the instrument and in the
documentation indicate precautions which must be taken to
maintain safe operation of the instrument.
Safety
Notices
This guide uses warnings and cautions to denote hazards
WARNING A warning calls attention to a procedure, practice or the like,
which, if not correctly performed or adhered to, could result in
injury or loss of life. Do not proceed beyond a warning until the
indicated conditions are fully understood and met.
CAUTION A caution calls attention to a procedure, practice or the like
which, if not correctly performed or adhered to, could result in
damage to or the destruction of part or all of the equipment.
Do not proceed beyond a caution until the indicated
conditions are fully understood and met.
The Instruction Documentation Symbol. The product
is marked with this symbol when it is necessary for
the user to refer to the instructions in the supplied
documentation.
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General Safety Information
4 E-Series E9320 Operating and Service Guide
General Safety Information
The following general safety precautions must be observed
during all phases of operation, service, and repair of this
instrument. Failure to comply with these precautions or with
specific warnings elsewhere in this manual violates safety
standards of design, manufacture, and intended use of the
instrument. Agilent Technologies assumes no liability for the
customer’s failure to comply with these requirements.
WARNING BEFORE CONNECTING THE POWER SENSOR TO OTHER
INSTRUMENTS ensure that all instruments are connected to
the protective (earth) ground. Any interruption of the
protective earth grounding will cause a potential shock
hazard that could result in personal injury.
Sound Emission
Herstellerbescheinigung
Diese Information steht im Zusammenhang mit den
Anforderungen der Maschinenlarminformationsverordnung
vom 18 Januar 1991.
• Sound Pressure LpA < 70 dB.
• Am Arbeitsplatz.
•NormalerBetrieb.
• Nach DIN 45635 T. 19 (Typprufung).
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General Safety Information
E-Series E9320 Operating and Service Guide 5
Manufacturers Declaration
This statement is provided to comply with the requirements of
the German Sound DIN 45635 T. 19 (Typprufung).
• Sound Pressure LpA < 70 dB.
• At operator position.
•Normaloperation.
• According to ISO 7779 (Type Test).
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General Safety Information
6 E-Series E9320 Operating and Service Guide
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Contents
E-Series E9320 Operating and Service Guide 7
Contents
Safety Symbols........................................................................ 3
General Safety Information ..................................................... 4
Sound Emission.................................................................... 4
Contents .................................................................................. 7
Introduction...............................................................................9
General Information .............................................................. 10
Initial Inspection.................................................................10
Power Meter and Sensor Cable Requirements....................11
Interconnections ................................................................ 11
Calibration.......................................................................... 11
The E-Series E9320 Power Sensors in Detail ........................ 13
Specifications and
Characteristics ......................................................................15
Introduction........................................................................... 16
Specifications ....................................................................... 17
Service .......................................................................................43
General Information .............................................................. 44
Cleaning ............................................................................. 44
Performance Test................................................................ 45
Replaceable Parts............................................................... 47
Service .................................................................................. 51
Principles of Operation ....................................................... 51
Troubleshooting.................................................................. 54
Repair of Defective Sensor ................................................. 54
Disassembly Procedure ...................................................... 55
Reassembly Procedure ....................................................... 55
Addendum.............................................................................57
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Contents
8 E-Series E9320 Operating and Service Guide
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1Introduction
What You’ll Find
In This Chapter
This Chapter introduces you to the E-series E9320 power
sensors. It contains the following sections:
• General Information on page 10
• Initial Inspection on page 10
• Power Meter and Sensor Cable Requirements on
page 11
• Interconnections on page 11
• The E-Series E9320 Power Sensors in Detail on page
13
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General Information
10 E-Series E9320 Operating and Service Guide
General Information
Welcome to the E-series E9320 power sensors Operating and
Service Guide! This guide contains information about the
initial inspection, connection, and specifications of the E-
series E9320 power sensors. You can also find a copy of this
guide on the CD-ROM supplied with the EPM-P series peak
and average power meters.
To make best use of your sensor refer to the chapter “Using
E-Series E9320 Sensors” in the EPM-P Series Power Meters
Operating and Service Guide.
Initial Inspection
Inspect the shipping container for damage. If the shipping
container or packaging material is damaged, it should be kept
until the contents of the shipment have been checked
mechanically and electrically. If there is mechanical damage,
notify the nearest Agilent office. Keep the damaged shipping
materials (if any) for inspection by the carrier and an Agilent
representative. If required, you can find a list of Agilent Sales
and Service offices on page 56.
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General Information
E-Series E9320 Operating and Service Guide 11
Power Meter and Sensor Cable
Requirements
The E-series E9320 power sensors are compatible ONLY with
the EPM-P series power meters and with E9288 sensor
cables. (The E9288 cables are color coded to help distinguish
them from the 11730 series cables.)
Interconnections
Connect one end of an E9288 sensor cable to the E-series
E9320 power sensor and connect the other end of the cable to
the power meter’s channel input. Allow a few seconds for the
power meter to download the data contained in the power
sensor.
Ensure power sensors and cables are attached and removed
in an indoor environment.
Calibration
To carry out a zero and calibration cycle as requested by the
power meter proceed as follows:
• Ensure the E-series E9320 power sensor is disconnected
from any signal source. On the power meter, press
, (or / ). During zeroing
the wait symbol is displayed.
When the wait period is complete connect the E-series E9320
power sensor to the power meter’s POWER REF output.
• Press (or , / ). The wait symbol is
again displayed during calibration.
TIP You can reduce the steps required to carry out the zero and
calibration procedure as follows:
Zero
Cal
Zero Zero A Zero B
Cal Cal Cal A Cal B
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General Information
12 E-Series E9320 Operating and Service Guide
Connect the power sensor to the POWER REF output.
• Press and . (For dual channel
meters, press , or
as required.)
On completion, the power meter and sensor are ready to
connect to the device under test (DUT).
WARNING BEFORE CONNECTING THE POWER SENSOR TO OTHER
INSTRUMENTS ensure that all instruments are connected to
the protective (earth) ground. Any interruption of the
protective earth grounding will cause a potential shock hazard
that could result in personal injury.
CAUTION The measurement connector (for connection to DUT) is
Type-N (male). A torque wrench should be used to tighten
these connectors. Use a 3/4-inch open-end wrench and
torque to 12 in-lb (135 Ncm) for the Type-N connector.
Zero
Cal
Zero + Cal
Zero + Cal Zero + Cal A
Zero + Cal B
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Recommended Calibration Interval
Agilent Technologies recommends a one-year calibration cycle
for the E-series E9320 peak and average power sensors.

The E-Series E9320 Power Sensors in Detail
E-Series E9320 Operating and Service Guide 13
The E-Series E9320 Power
Sensors in Detail
The E-series E9320 power sensors have two frequency
ranges. The E9325A, E9326A, and E9327A have a frequency
range of 50 MHz to 18 GHz while the 50 MHz to 6 GHz range of
the E9321A, E9322A, and E9323A covers most wireless
communication applications.
The sensors have two independent measurement paths as
shown in Figure 1.
Figure 1 Simplified Sensor Block Diagram
Use the default normal path for continuously sampled
measurements of modulated signals and time gated
measurements. For each frequency range there is a choice of
sensors with three video (modulation) bandwidths.
Selectable Gain
Average
SERIAL BUS
Differential Amplifier*
(300 kHz, 1.5 MHz, 5 MHz)
Thermistor Bias
I
Gain/Mode Control
Sensor ID
E
C Buffer
2
2
PROM
Chopper
Switched
Gain
Preamp
Load Filter*
(300 kHz, 1.5 MHz
5 MHz low pass)
RF IN
Normal
Path
GAIN SELECT
PEAK AUTO-ZERO
Sensor Diode
Bulkhead
Normal
Path
CHOP/GAIN
CHOP/CLOCK
CW Differential
AMP
50ohm
* Bandwidth is sensor de pendent
Average Only Path
Only Path
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The E-Series E9320 Power Sensors in Detail
14 E-Series E9320 Operating and Service Guide
• E9321A and E9325A sensors with 300 kHz bandwidth are
suitable for measuring TDMA signals such as GSM.
• E9322A and E9326A sensors with 1.5 MHz bandwidth are
suitable for measuring IS-95 CDMA signals.
• E9323A and E9327A sensors with 5 MHz bandwidth are
suitable for measuring W-CDMA signals.
Note however, that the sensors with widest bandwidth have
the smallest dynamic range (in normal mode). If dynamic
range is an important factor, use the sensor model with just
enough video bandwidth for the measurement you want to
make.
The average-only path is suitable for average power
measurements of Continuous Wave (CW) and constant
amplitude signals between -65 dBm (sensor dependent) and
+20 dBm. The average-only path can also be used to measure
true average power of any complex modulated signal below -
20 dBm.
Calibration factors, linearity, temperature, and bandwidth
compensation data are stored in the sensor EEPROM during
the manufacturing process. All the compensation data is
downloaded to the EPM-P series power meter at power-on or
when the sensor is connected. You only need to enter the
frequency of the RF signal you are measuring to achieve a high
degree of accuracy.
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2 Specifications and
Characteristics
What You’ll Find
In This Chapter
This Chapter describes the specifications and
characteristics of the E-series E9320 power sensors. It
contains the following sections:
• “Introduction” on page 16
• “Specifications” on page 17
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Introduction
16 E-Series E9320 Operating and Service Guide
Introduction
E-series E9320 power sensors are designed for use with the
Agilent EPM series power meters. The E-series E9320 power
sensors have two measurement paths:
•Normal path: (default mode) for peak, average and
time-related measurements.
•Average-only path: is designed primarily for average
power measurements on low level signals.
These specifications are valid ONLY after zero and calibration
of the power meter and sensor.
Supplemental characteristics, which are shown in italics, are
intended to provide information useful in applying the power
sensors by giving typical, but nonwarranted performance
parameters. These characteristics are shown in italics or
denoted as “typical”, “nominal”or “approximate”.
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Specifications
E-Series E9320 Operating and Service Guide 17
Specifications
Frequency, Bandwidth, and Power Range
Table 1 Frequency, Bandwidth, and Power Range
* For average power measurements, Free Run acquisition mode.
Sensor
Maximum
Video
Bandwidth
Frequency
Range
Power Range
Average
only Mode
Normal
Mode*
E9321A 300 kHz 50 MHz
to
6GHz
–65 dBm
to
+20 dBm
–50 dBm
to
+20 dBm
E9325A 300 kHz 50 MHz
to
18 GHz
–65 dBm
to
+20 dBm
–50 dBm
to
+20 dBm
E9322A 1.5 MHz 50 MHz
to
6GHz
–60 dBm
to
+20 dBm
–45 dBm
to
+20 dBm
E9326A 1.5 MHz 50 MHz
to
18 GHz
–60 dBm
to
+20 dBm
–45 dBm
to
+20 dBm
E9323A 5 MHz 50 MHz
to
6GHz
–60 dBm
to
+20 dBm
–40 dBm
to
+20 dBm
E9327A 5 MHz 50 MHz
to
18 GHz
–60 dBm
to
+20 dBm
–40 dBm
to
+20 dBm
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Specifications
18 E-Series E9320 Operating and Service Guide
Maximum Power, RF Connector
Table 2 Maximum Power, RF Connector
Sensor
RF
Connector
Maximum
Average Power
Maximum Peak
Power
E9321A
E9322A
E9323A
E9325A
E9326A
E9327A
N-Type (m) +23 dBm average +30 dBm,
<10µs duration
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Specifications
E-Series E9320 Operating and Service Guide 19
Measurement Ranges
The E-series E9320 power sensors have two measurement
ranges (Lower and Upper) as shown in Table 3, Table 4, and
Ta b l e 5 .
Table 3 Lower and Upper Measurement Ranges
1Applies to CW and constant amplitude signals only
above −20 dBm.
E9321A and E9325A
Normal
mode
Average only
mode
Lower Range (Min. Power) −50 dBm −65 dBm
Lower Range (Max. Power)
Lower to Upper Auto Range
Point
+0.5 dBm −17.5 dBm1
Upper to Lower Auto Range
Point -9.5dBm -18.5 dBm
Upper Range (Min. Power) −35 dBm −50 dBm
Upper Range (Max. Power +20 dBm +20 dBm1
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