Saluki S3871 Series User manual
S3871 Series Solid State Power Amplifier
User Manual
Saluki Technology Inc.
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The document applies to following models:
S3871x series Power Amplifier (9kHz - 60GHz)
Standard Pack:
1x Main Machine
1x Power Cord
1x U Disk (for documents)
Ordering Information:
Main machine
S3871AD Power Amplifier: 9kHz - 250MHz, 54dB
S3871AE Power Amplifier: 9kHz - 250MHz, 56dB
S3871AH Power Amplifier: 80MHz - 1GHz, 54dB
S3871AK Power Amplifier: 80MHz - 1GHz, 56dB
S3871AA Power Amplifier: 1GHz - 2.5GHz, 53dB
S3871AP Power Amplifier: 1GHz - 2.5GHz, 55dB
S3871AB Power Amplifier: 1GHz - 6GHz, 48dB
S3871AQ Power Amplifier: 2GHz - 6GHz, 53dB
S3871AR Power Amplifier: 2GHz - 6GHz, 56dB
S3871AS Power Amplifier: 500MHz - 6GHz, 50dB
S3871AT Power Amplifier: 500MHz - 6GHz, 53dB
S3871AU Power Amplifier: 500MHz - 6GHz, 56dB
S3871DA Power Amplifier: 6GHz - 18GHz, 46dB
S3871DB Power Amplifier: 6GHz - 18GHz, 50dB
S3871DC Power Amplifier: 6GHz - 18GHz, 53dB
S3871DD Power Amplifier: 6GHz - 18GHz, 56dB
S3871DE Power Amplifier: 2GHz - 18GHz, 53dB
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S3871DK Power Amplifier: 2GHz - 18GHz, 50dB
S3871DH Power Amplifier: 2GHz - 18GHz, 46dB
S3871EA Power Amplifier: 18GHz - 26.5GHz, 43dB
S3871EB Power Amplifier: 18GHz - 26.5GHz, 46dB
S3871EC Power Amplifier: 18GHz - 26.5GHz, 53dB
S3871FA Power Amplifier: 26GHz - 32GHz, 43dB
S3871FB Power Amplifier: 32GHz - 40GHz, 43dB
S3871FC Power Amplifier: 24GHz - 30GHz, 46dB
S3871FN Power Amplifier: 33GHz - 37GHz, 45dB
S3871FD Power Amplifier: 37GHz - 43GHz, 46dB
S3871FE Power Amplifier: 26GHz - 40GHz, 43dB
S3871FF Power Amplifier: 26GHz - 40GHz, 49dB
S3871FG Power Amplifier: 26GHz - 40GHz, 53dB
S3871FP Power Amplifier: 18GHz - 40GHz, 46dB
S3871FQ Power Amplifier: 18GHz - 40GHz, 50dB
S3871FR Power Amplifier: 18GHz - 40GHz, 53dB
S3871FS Power Amplifier: 2GHz - 40GHz, 40dB
S3871HA Power Amplifier: 40GHz - 47GHz, 40dB
S3871LA Power Amplifier: 40GHz - 60GHz, 36dB
More versions
S3871AB-020: 500MHz - 6GHz, 20W
S3871AB-040: 500MHz - 6GHz, 40W
S3871AS-060: 500MHz - 6GHz, 60W
S3871AS-080: 500MHz - 6GHz, 80W
S3871AT-150: 500MHz - 6GHz, 150W
S3871AT-200: 800MHz - 4.2GHz, 200W
S3871AT-250: 800MHz - 3GHz, 250W
S3871AT-300: 2.1GHz - 2.7GHz, 300W
S3871AU-250: 500MHz - 6GHz, 250W
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S3871AU-300: 500MHz - 3GHz, 300W
S3871AU-350: 500MHz - 3GHz, 350W
S3871AU-400: 500MHz - 3GHz, 400W
S3871AU-450: 500MHz - 3GHz, 450W
S3871AU-3001: 800MHz - 4.2GHz, 300W
S3871AU-4001: 800MHz - 4.2GHz, 400W
S3871AU-500: 2.1GHz - 2.7GHz, 500W
S3871DA-040: 6GHz - 18GHz, 40W
S3871DB-060: 6GHz - 18GHz, 60W
S3871DB-080: 6GHz - 18GHz, 80W
S3871DC-150: 6GHz - 18GHz, 150W
S3871DH-005: 2GHz - 18GHz, 5W
S3871DH-010: 2GHz - 18GHz, 10W
S3871DK-080: 2GHz - 18GHz, 80W
S3871EB-040: 18GHz - 26.5GHz, 40W
S3871EB-060: 18GHz - 26.5GHz, 60W
S3871EB-080: 18GHz - 26.5GHz, 80W
S3871EC-120: 18GHz - 26.5GHz, 120W
S3871EC-150: 18GHz - 26.5GHz, 150W
S3871EC-200: 18GHz - 26.5GHz, 200W
S3871FN-050: 33GHz - 37GHz, 50W
S3871FE-020: 26GHz - 40GHz, 20W
S3871FF-060: 26GHz - 40GHz, 60W
S3871FF-080: 26GHz - 40GHz, 80W
S3871FG-150: 26GHz - 40GHz, 150W
S3871FP-005: 18GHz - 40GHz, 5W
S3871FP-010: 18GHz - 40GHz, 10W
S3871FQ-060: 18GHz - 40GHz, 60W
S3871FQ-080: 18GHz - 40GHz, 80W
S3871LA-005: 40GHz - 60GHz, 5W
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Preface
Thank you for choosing Saluki Technology Products.
We devote ourselves to meeting your demands, providing you high-quality measuring instrument and the
best after-sales service. We persist with “superior quality and considerate service”, and are committed to
offering satisfactory products and service for our clients.
Document No.
S3871-03-01
Version
Rev01 2020.10
Document Authorization
The information contained in this document is subject to change without notice. The power to interpret
the contents of and terms used in this document rests with Saluki.
Saluki Tech owns the copyright of this document which should not be modified or tampered by any
organization or individual or reproduced or transmitted for the purpose of making profit without its prior
permission, otherwise Saluki will reserve the right to investigate and affix legal liability of infringement.
Product Quality Assurance
The warranty period of the product is 36 months from the date of delivery. The instrument manufacturer
will repair or replace damaged parts according to the actual situation within the warranty period.
Product Quality Certificate
The product meets the indicator requirements of the document at the time of delivery. Calibration and
measurement are completed by the measuring organization with qualifications specified by the state, and
relevant data are provided for reference.
Quality/Settings Management
Research, development, manufacturing and testing of the product comply with the requirements of the
quality and environmental management system.
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Contents
Chapter 1 Overview.................................................................................................................................... 8
Chapter 2 Unpacking.................................................................................................................................. 9
Chapter 3 Operation Guide....................................................................................................................... 11
3.1 Front Panel Features.......................................................................................................................... 12
3.2 Rear Panel Features............................................................................................................................13
Chapter 4 Working Principle.................................................................................................................... 14
Chapter 5 Technical Specifications and Indicator Tests...........................................................................15
5.1 Main Indicators and Performance Characteristics............................................................................. 15
5.2 Indicator Tests....................................................................................................................................18
Chapter 6 Maintenance and Repair...........................................................................................................22
6.1 Regular Maintenance......................................................................................................................... 22
6.2 General Maintenance......................................................................................................................... 22
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Chapter 1 Overview
The S3871 series solid-state power amplifiers are a new series of microwave and millimeter-wave
amplifiers. This series is easy to carry and operate. Its most prominent characteristics are wide band, high
gain and high power. This series consists of multiple amplifiers operating in different frequency bands.
Please refer to Chapter 5 Technical Indicators for their models and corresponding operating frequencies.
The S3871 series solid-state power amplifiers are an important component in many fields such as
high-power test systems, microwave and millimeter-wave communications systems and electromagnetic
compatibility test. They are test instruments developed and produced to solve such problems of current
microwave and millimeter-wave general signal sources as low output power and inability to meet the
needs of high-power signals.
The S3871 series solid-state power amplifiers focus on breaking through the amplification and synthesis
technologies of broadband high-power signals, and are planned to be used in the development,
manufacturing, maintenance and support of electronic weapons and equipment of our army like radars,
satellites, broadband communications and electronic countermeasures. As universal high-performance,
broadband high-power amplifiers, they can also be widely used in many fields like electromagnetic
compatibility testing, high-power electric vacuum device testing, non-linear testing of high-power
components and so on. As indispensable important instruments in broadband high-power testing systems,
they have a broad prospect in the application of electronic measurement in the military field.
This manual introduces the applications, performance characteristics, basic working principles, operation
and other information of S3871 series solid-state power amplifiers, helping you to familiarize yourself
with and master the operation methods and key points of the instruments as soon as possible. Please read
this manual carefully and follow its instructions for correct operation.
This manual consists of 6 chapters.
Chapter 1 introduces the features and applications of S3871 series solid-state power amplifiers
Chapter 2 introduces the unpacking inspection and pre-operation precautions of S3871 series
solid-state power amplifiers.
Chapter 3 introduces the front/rear panel features and operation instructions of S3871 series
solid-state power amplifiers.
Chapter 4 introduces the basic working principles of S3871 series solid-state power amplifiers.
Chapter 5 introduces major technical indicators and performance characteristic of S3871 series
solid-state power amplifiers and offers details about test methods of the instrument indicators.
Chapter 6 introduces the maintenance and simple repair of S3871 series solid-state power amplifiers.
We sincerely hope that SALUKI can help you work more conveniently and efficiently. If you have any
question during the use of the instruments, please do not hesitate to contact us.
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Chapter 2 Unpacking
1. Model confirmation
When you open the package, you will see the following items:
1x Main Machine
1x Power Cord
1x U Disk (for documents)
Please check carefully for any incorrect or missing items against the order contract and the packing list. If
there is any problem, please contact our operation center according to the contact information in the
preface, and we will solve it as soon as possible.
2. Visual examination
Check the instrument carefully for any damage during transportation. It is strictly prohibited to switch on
the instrument if any obvious damage to the instrument is found. Please contact our operation center
according to the contact information in the preface. We will repair or replace the product accordingly as
soon as possible.
3. Operating environment
Please refer to the environmental adaptability part in Technical Indicators section of this manual. And
please pay special attention to the following requirements:
Power supply: 220V (±10%), 50Hz (±5%)
Power socket: 3-core power socket must be used, and grounding is strictly required.
Power cable of the instrument: 3-core power cable provided in the package
For the safety of users, anti-static accessories must be provided with at least 1MΩisolation resistance
from ground.
Before connecting the solid-state power amplifier to the power supply, please check carefully whether the
supply voltage is normal and whether the connector at the output end of the amplifier is connected with a
high-power load, otherwise it is very likely to cause damage to the instrument!
4. Electrostatic protection
Static electricity is extremely destructive to electronic components and instruments. The required
anti-static measures must be completed on an anti-static workbench. Usually we take two anti-static
measures: conductive table mat and wrist strap, conductive floor mat and ankle strap. For the safety of
users, anti-static accessories must be provided with at least 1MΩisolation resistance from ground.
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Please correctly apply the following anti-static measures to reduce electrostatic damage: ensure correct
grounding of all instruments prevent the generation of static electricity; operators must wear anti-static
wrist straps before touching the connectors, the core wire or before any assembly operation.
The above-mentioned anti-static measures cannot be applied when the voltage exceeds 500V!
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Chapter 3 Operation Guide
The S3871 series solid-state power amplifiers cover a frequency range of 1GHz - 60GHz and a unit
output power range of 1W - 100W. Adopting the most advanced broadband space power synthesis
technology in the world at present, they have completely independent intellectual property rights and
adopt the external structure as standard bench top instruments.
The interface is simple and user-friendly, allowing for simple and convenient operation. The panel
consists of five parts, namely, RF input port, RF output port, function setting keys, gain regulator and
power display interface. The function setting keys are used to set different working states of the power
amplifier, and the gain regulator is used to set the gain and output power of the power amplifier. The
display interface is divided into two parts, one for working status and the other for function settings. The
working state display interface can display the output power and incident power. The current working
frequency is shown on the top of the display and the status bar, located on the bottom of the display,
shows whether the current work is in a local state or in a remote-control state, in an open loop state or in a
stable amplitude state. The instrument can display the output power as well as the two working states of
open loop and internal amplitude stabilization. In the open loop state, adjusting the gain regulator allows
you to realize different output powers and gains.
In terms of protective design, the instrument features many alarm and protection functions. Firstly, the
instrument offers air-cooling alarm and protection, over-temperature alarm and protection, mismatch
alarm and protection. The thresholds of over-temperature alarm and mismatch alarm can be flexibly set as
required by users. When an alarm is generated, you can also take different countermeasures, such as
minimizing the gain or cutting off the RF. Another protection of the instrument is the working state
locking function. When the working state is set to locked, the current gain and output power will not be
changed even if the gain regulator is turned. This function can effectively prevent power change caused
by incorrect operation or carelessness of users, thus ensuring the safety of the measured piece.
As for humanized design, first of all, the RF input port and RF output port are provided separately on the
left and right sides of the front panel to facilitate users to connect cables or measured pieces. Secondly,
the display interface displays not only the output power, but also the incident power. The display units are
W and dBm respectively. In addition, you can also choose to the display only the output power and not
the incident power.
The instrument also has the following features: working state selectable between open-loop and internal
stable amplitude, working state selectable between local and remote control, working interface selectable
between Chinese and English, selectable alarm processing modes and selectable adjustment direction for
the gain regulator. Such features increase users’ selectivity to the working state, meet different demands
of users, and improve the convenience of use.
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3.1 Front Panel Features
S3871 series solid-state power amplifiers adopt concise and clear front panel design. According to
different working frequency bands and output powers, this series of products adopt different dimensions
and front and rear panels, which, however, do not affect the use by users. Let ’s take 3871DC as an
example. The configuration diagram of its front panel is shown in Figure 3-1.
Figure 3-1 Front panel of S3871 series solid-state power amplifiers
1. Output Power display window
S3871 series solid-state power amplifiers are equipped with LCD displays on the front panels, achieving
display of the output powers of amplifiers.
2. RF Input connector
The RF input connector is used for inputting the RF input signals of the solid-state power amplifier.
3. RF Output connector
The RF output connector is used for outputting the RF output signals of the solid-state power amplifier.
4. Gain (Power) Regulator
S3871 series solid-state power amplifiers are equipped with the Gain (Power) regulators on the front
panels, allowing for adjustment of the gains or output powers of the amplifiers as required.
5. Setting Wizard
S3871 series solid-state power amplifiers are equipped with Setting Wizard keys on the front panels,
allowing uses to set the frequency displayed on the screen to the actual working frequency so as to
achieve the frequency compensation of power display and thus ensuring more accurate power display.
The operation is as follows: firstly, press the "OK" key, and the frequency selection interface will appear
on the screen, then set the display frequency to the current working frequency of the amplifier with the
navigation keys, and then press the "OK”key again.
6. Alarm indicator
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S3871 series solid-state power amplifiers are equipped indication for mismatch, over-temperature and
air-cooling alarms, realizing warning for mismatch of the output port, excessive temperature inside the
amplifier and abnormal operation of the air cooling fans.
7. Operation switch
The operation switches are used to control the standby and working states of the solid-state power
amplifier. After turning on the power switch on the rear panel, the working switch of the front panel is in
the standby state by default and will be switched to the working state after pressing the key.
3.2 Rear Panel Features
The configuration of the rear panel of S3871 series solid-state power amplifiers is shown in Figure 3-2.
Figure 3-2 Rear panel of S3871 series solid-state power amplifiers
1. Power switch
When the power switch, located on the rear panel, is turned on, the instrument is powered on and in the
standby status.
2. AC power input
This connector is used to input AC voltage of 220V±10% and 50Hz.
3. Ethernet port
At present, S3871 series solid-state power amplifiers support remote power control through the Ethernet
port at the upper right corner of the rear panel.
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Chapter 4 Working Principle
The solid-state power amplifier amplifies the input signal power to generate the output signal power, the
power supply module provides the DC voltage required by the S3871 series solid-state power amplifier,
the bias plate provides the bias voltage for the solid-state power amplifier, and the power measurement
unit converts the coupled detection output voltage signal from the solid-state power amplifier into RF
output power displayed in dBms and Watts on the LCD screen of the front panel. The schematic diagram
of the amplifiers is shown in Figure 4-1.
Figure 4-1 Schematic diagram for amplifiers of S3871 series solid-state power amplifiers
The S3871 series solid-state power amplifiers adopt two working modes as shown below:
1. Open-loop working mode
With the Setting Wizard keys on the front panel of the instrument, the working state can be set to "Open
Loop". At this time, microwave signals are input from the RF frequency input end of the amplifier, then
amplified by the amplifier and then output through the main loop of the directional coupler. A part of the
output power is sent to a detector through coupling of a directional coupler, which converts the
microwave signals into a voltage signals for processing, and finally the actual output power value is
displayed on the front panel.
2. Internal amplitude stabilization working mode
With the Setting Wizard keys on the front panel of the instrument, the working state can be set to
"Internal Amplitude Stabilization". At this time, the coupling port of the directional coupler in the output
path sends the output coupling signals to the detector and converts it into detection voltage, which, after
amplification, is sent to the internal amplitude stabilization loop inside the amplifier. The internal
amplitude stabilization mode can improve the flatness of the output power.
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Chapter 5 Technical Specifications and Indicator Tests
5.1 Main Indicators and Performance Characteristics
1. Technical indicators of S3871 series solid-state power amplifiers
(1) Different models and main technical indicators are shown in the table below:
Model
Frequency Band
Gain (dB)
Psat (dBm)
Input Port
Output Port
S3871AD
9kHz - 250MHz
54
51
N(f)
N(f)
S3871AE
9kHz - 250MHz
56
53
N(f)
N(f)
S3871AH
80MHz - 1GHz
54
51
N(f)
N(f)
S3871AK
80MHz - 1GHz
56
53
N(f)
N(f)
S3871AA
1GHz - 2.5GHz
53
50
N(f)
N(f)
S3871AP
1GHz - 2.5GHz
55
52
N(f)
N(f)
S3871AB
1GHz - 6GHz
48
45
N(f)
N(f)
S3871AQ
2GHz - 6GHz
53
50
N(f)
N(f)
S3871AR
2GHz - 6GHz
56
53
N(f)
N(f)
S3871AS
500MHz - 6GHz
50
47
N(f)
N(f)
S3871AT
500MHz - 6GHz
53
50
N(f)
N(f)
S3871AU
500MHz - 6GHz
56
53
N(f)
N(f)
S3871DA
6GHz - 18GHz
46
43
N(f)
N(f)
S3871DB
6GHz - 18GHz
50
47
N(f)
N(f)
S3871DC
6GHz - 18GHz
53
50
N(f)
N(f)
S3871DD
6GHz - 18GHz
56
53
N(f)
N(f)
S3871DE
2GHz - 18GHz
53
50
N(f)
N(f)
S3871DK
6GHz - 18GHz
50
47
N(f)
N(f)
S3871DH
2GHz - 18GHz
46
43
N(f)
N(f)
S3871EA
18GHz - 26.5GHz
43
40
3.5mm(m)
3.5mm(m)
S3871EB
18GHz - 26.5GHz
46
43
3.5mm(m)
3.5mm(m)
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S3871EC
18GHz - 26.5GHz
53
50
3.5mm(m)
WR42
S3871FA
26GHz - 32GHz
43
40
2.4mm(m)
2.4mm(m)
S3871FB
32GHz - 40GHz
43
40
2.4mm(m)
2.4mm(m)
S3871FC
24GHz - 30GHz
46
43
2.4mm(m)
2.4mm(m)
S3871FN
33GHz - 37GHz
45
45
2.4mm(m)
WR28
S3871FD
37GHz - 43GHz
46
43
2.4mm(m)
2.4mm(m)
S3871FE
26GHz - 40GHz
43
40
2.4mm(m)
2.4mm(m)
S3871FF
26GHz - 40GHz
49
46
2.4mm(m)
WR28
S3871FG
26GHz - 40GHz
53
50
2.4mm(m)
WR28
S3871FP
18GHz - 40GHz
46
43
2.4mm(m)
24JS18000
S3871FQ
18GHz - 40GHz
50
47
2.4mm(m)
24JS18000
S3871FR
18GHz - 40GHz
53
50
2.4mm(m)
24JS18000
S3871FS
2GHz - 40GHz
40
37
2.4mm(m)
2.4mm(m)
S3871HA
40GHz - 47GHz
40
37
2.4mm(m)
2.4mm(m)
S3871LA
40GHz - 60GHz
36
33
1.85mm(m)
1.85mm(m)
(2) Typical curve for constant-temperature output power of S3871 series solid-state power amplifiers (for
reference only):
S3871LA Output power VS Frequency S3871FF Output power VS Frequency
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S3871FB Output power VS Frequency S3871FA Output power VS Frequency
S3871EA Output power VS Frequency S3871DA Output power VS Frequency
S3871AA Output power VS Frequency S3871AB Output power VS Frequency
2. General information
(1) Environmental requirements:
Working temperature range: 0℃~+40℃
Storage temperature range: -40℃~+70℃
(2) Power conditions: AC 220V±10%, 50Hz±5%
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5.2 Indicator Tests
Let’s take the indicator testing of S3871FB solid-state power amplifier as an example, which can be used
as a reference for other models of solid-state power amplifiers.
1. Testing Instruments and Equipment
Major instruments and equipment required as shown in the table below:
SN
Instrument
Main technical indicators
1
Vector network analyzer
Frequency range: 0.5GHz - 40GHz
2
Signal source
Frequency range: 0.5GHz - 40GHz
3
Power meter
Frequency range: 0.5GHz - 40GHz
4
Power sensor
Frequency range: 0.5GHz - 40GHz
5
Spectrum analyzer
Frequency range: 0.5GHz - 40GHz
6
Attenuator
Frequency range: 0.5GHz - 40GHz
Note: Other instruments that can meet the requirements for indicator testing can be used as substitutes.
2. Indicator Testing Methods
2.1 Normal functionality inspection
Connect the S3871FB solid-state power amplifier to the power supply, place the power switch on the rear
panel to the "-" position (the "On" position), and the standby power indicator on the front panel will be on.
When the working switch on the front panel is turned on, the fans on both sides of the rear panel of the
housing will rotate, the working indicator near the working switch on the front panel is on, the display on
the output power display screen is normal and the key sensitivity is OK.
2.2 Performance characteristics testing
The specific operation steps for testing the following indicators are provided according to the testing
instrument shown in the figure. When other testing instruments with the same performance characteristics
are used for testing, please refer to the User Manual of such instruments for the specific operation. A
signal source and a power meter as shown in Figure 5-2 can also be used to test the gain.
(1) Gain test
a) Testing equipment:
Vector network analyzer: 3672 1
High-power attenuator: 89-30-21 1
Calibration cable: 2
2.4mm calibration piece: 85056A 1 set
b) Testing diagram
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Figure 5-1 Gain and standing wave testing diagram
c) Gain testing steps:
1Turn on the power of the amplifier and 3672 for preheating for 30 minutes.
2Set 3672 to [Test], [S21], [Format], [Log Amplitude], power of -40dBm, frequency of 32GHz to
40GHz, frequency sweep time of 1s, and number of measurement points of 101.
3Connect the test cable of port 2 of 3672 with the attenuator, and then carry out dual-port calibration
of 3672 after connection with the attenuator. The attenuator adopts a high-power fixed attenuator with the
attenuation value greater than 30dB, and the continuous wave carrying power must be greater than 10W.
The recommended model is 89-30-21 manufactured by Weinschel Company.
4Turn the gain regulator on the front panel of the S3871FB solid-state power amplifier clockwise to
the end, conduct the gain test according to the connection system shown in Figure 5-1, and record the
value S21 as the gain value of the amplifier.
(2) Input port voltage standing wave test
a) Testing equipment:
Vector network analyzer: 3672 1
High-power attenuator: 89-30-21 1
Calibration cable: 2
2.4mm calibration piece: 85056A 1 set
b) Input port standing wave testing steps:
1Turn on the power of the amplifier and 3672 for preheating for 30 minutes.
2Set 3672 to [Test], [S11], [Format], [SWR], power of -40dBm, frequency of 32 GHz to 40 GHz,
frequency sweep time of 1s, and number of measurement points of 101.
3Carry out dual-port calibration of 3672.
4Turn the gain regulator on the front panel of the S3871FB solid-state power amplifier clockwise to
the end, conduct the SWR test according to the connection system shown in Figure 5-1, and record the
value S21 as the SWR value of the amplifier.
(3) Max. Output Power, Max. Input Power and Output Power Flatness Tests
Port 2 Output
Port 1 Input
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a) Testing equipment:
Signal source: S1465 1
Power meter: 2434 1
Power sensor: 71712 1
High-power attenuator: 89-30-21 1
b) Testing diagram:
Figure 5-2 Diagram for testing of max. output power, max. input power and output power flatness
c) Testing steps for max. output power, max. input power and output power flatness:
1Max. output power test: connect the instrument as shown in Figure 5-2, set the working frequency
range of the signal source to 32GHz - 40GHz with the stepping by 0.5GHz, set the output power of the
signal source connected to the input port of the amplifier to 0dBm or any other value that can make the
amplifier in the working state of saturated output, record the reading on the power meter at each test
frequency point, and calculate the sum of the max. output power degree and the attenuation value on the
attenuator, which is just the max. output power.
2Max. input power test: observe the working state of the amplifier at the max. input power. It is
required that the amplifier should be able to work normally without damage at each test frequency point
and return to the original working state when it is lower than the max. input power.
3Output power flatness test: place the internal amplitude stabilization key on the rear panel of the
instrument to the "Internal Amplitude Stabilization" working state, test and record the output power of the
1dB compression point at each test frequency point, and calculate the average value of the max. and min.
output powers. Neither the max. nor the min. output power should exceed the flatness requirement,
namely, it should be in the range of 3dB above the average value and 3dB below the average value.
(4) 1dB Compression Point Output Power Test
a) Testing equipment:
Signal source: S1465 1
Power meter: 2434 1
Power sensor: 71712 1
This manual suits for next models
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