Keysight U2020 X Series User manual

Keysight U2020 X-Series
USB Peak and Average
Power Sensors
User’s Guide

2 Keysight U2020 X-Series User’s Guide
Notices
Copyright Notice
© Keysight Technologies 2012 - 2018
No part of this manual may be repro-
duced in any form or by any means
(including electronic storage and
retrieval or translation into a foreign
language) without prior agreement and
written consent from Keysight Technol-
ogies as governed by United States and
international copyright laws.
Manual Part Number
U2021-90002
Edition
Edition 6, September 1, 2018
Printed in:
Printed in Malaysia
Published by:
Keysight Technologies
Bayan Lepas Free Industrial Zone,
11900 Penang, Malaysia
Technology Licenses
The hardware and/or software
described in this document are fur-
nished under a license and may be
used or copied only in accordance with
the terms of such license.
Declaration of Conformity
Declarations of Conformity for this
product and for other Keysight prod-
ucts may be downloaded from the
Web. Go to http://www.keysight.com/
go/conformity. You can then search by
product number to find the latest Dec-
laration of Conformity.
U.S. Government Rights
The Software is “commercial computer
software,” as defined by Federal Acqui-
sition Regulation (“FAR”) 2.101. Pursu-
ant to FAR 12.212 and 27.405-3 and
Department of Defense FAR Supple-
ment (“DFARS”) 227.7202, the U.S.
government acquires commercial com-
puter software under the same terms
by which the software is customarily
provided to the public. Accordingly,
Keysight provides the Software to U.S.
government customers under its stan-
dard commercial license, which is
embodied in its End User License
Agreement (EULA), a copy of which can
be found at http://www.keysight.com/
find/sweula. The license set forth in the
EULA represents the exclusive authority
by which the U.S. government may use,
modify, distribute, or disclose the Soft-
ware. The EULA and the license set
forth therein, does not require or per-
mit, among other things, that Keysight:
(1) Furnish technical information
related to commercial computer soft-
ware or commercial computer software
documentation that is not customarily
provided to the public; or (2) Relinquish
to, or otherwise provide, the govern-
ment rights in excess of these rights
customarily provided to the public to
use, modify, reproduce, release, per-
form, display, or disclose commercial
computer software or commercial com-
puter software documentation. No
additional government requirements
beyond those set forth in the EULA
shall apply, except to the extent that
those terms, rights, or licenses are
explicitly required from all providers of
commercial computer software pursu-
ant to the FAR and the DFARS and are
set forth specifically in writing else-
where in the EULA. Keysight shall be
under no obligation to update, revise or
otherwise modify the Software. With
respect to any technical data as
defined by FAR 2.101, pursuant to FAR
12.211 and 27.404.2 and DFARS
227.7102, the U.S. government
acquires no greater than Limited Rights
as defined in FAR 27.401 or DFAR
227.7103-5 (c), as applicable in any
technical data.
Warranty
THE MATERIAL CONTAINED IN THIS
DOCUMENT IS PROVIDED “AS IS,”
AND IS SUBJECT TO BEING
CHANGED, WITHOUT NOTICE, IN
FUTURE EDITIONS. FURTHER, TO THE
MAXIMUM EXTENT PERMITTED BY
APPLICABLE LAW, KEYSIGHT DIS-
CLAIMS ALL WARRANTIES, EITHER
EXPRESS OR IMPLIED, WITH REGARD
TO THIS MANUAL AND ANY INFORMA-
TION CONTAINED HEREIN, INCLUD-
ING BUT NOT LIMITED TO THE
IMPLIED WARRANTIES OF MER-
CHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. KEYSIGHT
SHALL NOT BE LIABLE FOR ERRORS
OR FOR INCIDENTAL OR CONSE-
QUENTIAL DAMAGES IN CONNECTION
WITH THE FURNISHING, USE, OR
PERFORMANCE OF THIS DOCUMENT
OR OF ANY INFORMATION CON-
TAINED HEREIN. SHOULD KEYSIGHT
AND THE USER HAVE A SEPARATE
WRITTEN AGREEMENT WITH WAR-
RANTY TERMS COVERING THE MATE-
RIAL IN THIS DOCUMENT THAT
CONFLICT WITH THESE TERMS, THE
WARRANTY TERMS IN THE SEPARATE
AGREEMENT SHALL CONTROL.
Safety Information
CAUTION
A CAUTION notice denotes a hazard. It
calls attention to an operating proce-
dure, practice, or the like that, if not
correctly performed or adhered to,
could result in damage to the product
or loss of important data. Do not pro-
ceed beyond a CAUTION notice until
the indicated conditions are fully
understood and met.
WARNING
A WARNING notice denotes a hazard. It
calls attention to an operating proce-
dure, practice, or the like that, if not
correctly performed or adhered to,
could result in personal injury or death.
Do not proceed beyond a WARNING
notice until the indicated conditions are
fully understood and met.

Keysight U2020 X-Series User’s Guide 3
Environmental Conditions
The U2020 X-Series is designed for indoor use and in an area with low
condensation. The table below shows the general environmental requirements for
this instrument.
Environmental condition Requirement
Temperature
Operating condition
– 0 °C to 55 °C
Storage condition
– –40 °C to 70 °C
Humidity
Operating condition
– Up to 95% RH at 4 0°C (non-condensing)
Storage condition
– Up to 90% RH at 65 °C (non-condensing)
Altitude
Operating condition
– Up to 3,000 m (9,840 ft.)
Storage condition
– Up to 15,420 m (50,000 ft.)

4 Keysight U2020 X-Series User’s Guide
Regulatory Information
The U2020 X-Series complies with the following Electromagnetic Compatibility
(EMC) compliances:
EMC compliance
– IEC 61326-1:2005/EN 61326-1:2006
– Canada: ICES/NMB-001:Issue 4, June 2006
– Australia/New Zealand: AS/NZS CISPR11:2004

Keysight U2020 X-Series User’s Guide 5
Regulatory Markings
The RCM mark is a registered
trademark of the Australian
Communications and Media Authority.
This instrument complies with the
WEEE Directive (2002/96/EC) marking
requirement. This affixed product label
indicates that you must not discard
this electrical or electronic product in
domestic household waste.
This symbol indicates the time period
during which no hazardous or toxic
substance elements are expected to
leak or deteriorate during normal use.
Forty years is the expected useful life
of the product.
The CE mark is a registered trademark
of the European Community. This CE
mark shows that the product complies
with all the relevant European Legal
Directives.
ICES/NMB-001 indicates that this ISM
device complies with the
Canadian ICES-001.
Cet appareil ISM est conforme a la
norme NMB-001 du Canada.
ISM GRP.1 Class A indicates that this
is an Industrial Scientific and Medical
Group 1 Class A product.

6 Keysight U2020 X-Series User’s Guide
Waste Electrical and Electronic Equipment (WEEE) Directive
This instrument complies with the WEEE Directive marking requirement. This
affixed product label indicates that you must not discard this electrical or
electronic product in domestic household waste.
Product category:
With reference to the equipment types in the WEEE directive Annex 1, this
instrument is classified as a “Monitoring and Control Instrument” product.
The affixed product label is as shown below.
Do not dispose in domestic household waste.
To return this unwanted instrument, contact your nearest Keysight Service Center,
or visit http://about.keysight.com/en/companyinfo/environment/takeback.shtml
for more information.
Sales and Technical Support
To contact Keysight for sales and technical support, refer to the support links on
the following Keysight websites:
–www.keysight.com/find/usbsensor
(product-specific information and support, software and
documentation updates)
–www.keysight.com/find/assist
(worldwide contact information for repair and service)

Keysight U2020 X-Series User’s Guide 7
Table of Contents
Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
EMC compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Regulatory Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Waste Electrical and Electronic Equipment (WEEE) Directive . . . . . . . .6
Product category: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Sales and Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
1 Getting Started
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Initial Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Standard Purchase Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Hardware Installation and Configuration . . . . . . . . . . . . . . . . . . . . . . . .17
Install and verify the U2020 X-Series . . . . . . . . . . . . . . . . . . . . . . . .18
LED Indicator Sequence During Power-Up . . . . . . . . . . . . . . . . . . . . . .20
Other LED indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Firmware Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
2 General Operating Information
Using the 2020 X-Series with the Keysight BenchVue . . . . . . . . . . . . .24
Quick start example to perform an average power measurement . .25
Quick start example to set up a measurement in the Trace view . . .30
Quick overview of the BenchVue Power Meter . . . . . . . . . . . . . . . . .35
Power meter settings in the Average only mode . . . . . . . . . . . . . . . . . .39
Power meter settings in the Normal mode . . . . . . . . . . . . . . . . . . . .42
Instrument Setup tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Main Toolbar Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

8 Keysight U2020 X-Series User’s Guide
Instrument Properties Toolbar Functions . . . . . . . . . . . . . . . . . . . . . . . 48
Function Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Auto-calibration and auto-zeroing . . . . . . . . . . . . . . . . . . . . . . . . . . 49
System-related function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Channel setup functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Measurement gates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Trigger functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Measurement functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
U2020 X-Series Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
List mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Variable aperture size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Average only mode external trigger . . . . . . . . . . . . . . . . . . . . . . . . . 62
Auto burst detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
20-pulse measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
High average count reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Gamma correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
S-Parameter correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Tilt measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
3 Specifications and Characteristics

Keysight U2020 X-Series User’s Guide 9
List of Figures
Figure 2-1 Launch the Keysight BenchVue . . . . . . . . . . . . . . . . . .24
Figure 2-2 Accessing the BenchVue Power Meter help
documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Figure 2-3 Performing calibration and zeroing . . . . . . . . . . . . . . .26
Figure 2-4 Setting the frequency . . . . . . . . . . . . . . . . . . . . . . . . . .26
Figure 2-5 Average power meter measurement results . . . . . . . .26
Figure 2-6 Creating Datalog display view . . . . . . . . . . . . . . . . . . .27
Figure 2-7 Selecting one of the measurements . . . . . . . . . . . . . .27
Figure 2-8 Data preview bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Figure 2-9 Placing a marker on the chart . . . . . . . . . . . . . . . . . . .29
Figure 2-10 Creating a trace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Figure 2-11 Performing calibration and zeroing . . . . . . . . . . . . . . .31
Figure 2-12 Setting the frequency . . . . . . . . . . . . . . . . . . . . . . . . . .31
Figure 2-13 Setting the trace scales . . . . . . . . . . . . . . . . . . . . . . . .31
Figure 2-14 Adding marker or configuring the trace using Tools Palette
controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Figure 2-15 Setting the gates through Instrument Setup tab . . . .33
Figure 2-16 Viewing the power measurement results of the pulse 34
Figure 2-17 Common measurement settings pane . . . . . . . . . . . . .36
Figure 2-18 Datalog settings pane . . . . . . . . . . . . . . . . . . . . . . . . .37
Figure 2-19 Export the data log file . . . . . . . . . . . . . . . . . . . . . . . . .37
Figure 2-20 Save/load the instrument state . . . . . . . . . . . . . . . . . .37
Figure 2-21 Instrument setup (advanced settings) pane . . . . . . . .38
Figure 2-22 Power meter settings in the Average only mode . . . . .39
Figure 2-23 Power meter settings in the Normal mode . . . . . . . . .42
Figure 2-24 Instrument Setup tab . . . . . . . . . . . . . . . . . . . . . . . . . .45
Figure 2-25 Average only mode external trigger . . . . . . . . . . . . . .62
Figure 2-26 Pulsed radar analysis – 1st pulse . . . . . . . . . . . . . . . .63
Figure 2-27 Pulsed radar analysis – 20th pulse . . . . . . . . . . . . . . .64
Figure 2-28 Device-Under-Test (DUT) to U2020 X-Series connection
diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
Figure 2-29 Non-ideal 2-port device . . . . . . . . . . . . . . . . . . . . . . . .67
Figure 2-30 Tilt measurement graph . . . . . . . . . . . . . . . . . . . . . . . .68

10 Keysight U2020 X-Series User’s Guide
THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK.

Keysight U2020 X-Series User’s Guide 11
List of Tables
Table 2-1 Power meter settings in the Average only mode
description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Table 2-2 Power meter settings in the Normal mode description .
43
Table 2-3 Additional Instrument Setup tab settings description 46
Table 2-4 Range of values for limits . . . . . . . . . . . . . . . . . . . . . . .60
Table 2-5 Aperture size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

12 Keysight U2020 X-Series User’s Guide
THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK.

Keysight U2020 X-Series USB Peak and Average Power Sensors
User’s Guide
13
1 Getting Started
Overview 14
Initial Inspection 15
Standard Purchase Items 16
Hardware Installation and Configuration 17
LED Indicator Sequence During Power-Up 20
Firmware Upgrade 21
This chapter gets you started with the U2020 X-Series USB peak and average
power sensors.

1 Getting Started
14 Keysight U2020 X-Series User’s Guide
Overview
The U2020 X-Series is a USB-based standalone peak and average power sensor
and meter. The U2020 X-Series consists of two models; U2021XA (50 MHz to
18 GHz) and U2022XA (50 MHz to 40 GHz).
The U2020 X-Series is capable of measuring the average and peak power of
modulated, pulsed, and continuous wave (CW) signals in 50 MHz to
40 GHz frequency range and –45 dBm to 20 dBm power range.
[1] The recorder and video output share the same port as the trigger output.
LED indicator
Indicates the U2020 X-Series state.
Refer to LED Indicator Sequence During
Power-Up for details.
Physical secure lock mechanism
RF input port for RF/
microwave signals
USB port
External trigger ports[1]
USB cable

Getting Started 1
Keysight U2020 X-Series User’s Guide 15
Initial Inspection
– If there is mechanical damage or any missing item, notify the nearest Keysight
Sales and Service office.
– Keep the damaged shipping material.
– Refer to “Sales and Technical Support” on page 6 for the contact list of
Keysight Sales and Service offices.
1
2
Inspect items for
damage.
Verify that your order is
complete.

1 Getting Started
16 Keysight U2020 X-Series User’s Guide
Standard Purchase Items
2 ×Trigger cable, BNC male to SMB
female, 50 Ω, 1.5 m Sensor cable, 1.5 m
Certificate of
Calibration

Getting Started 1
Keysight U2020 X-Series User’s Guide 17
Hardware Installation and Configuration
Prior to using the U2020 X- Series, ensure that the following minimum
requirements are met:
– PC with a USB host capability
– Keysight IO Libraries Suite 15.5 or higher installed

1 Getting Started
18 Keysight U2020 X-Series User’s Guide
Install and verify the U2020 X-Series
1Connect the U2020 X-Series to the PC. The U2020 X-Series driver is detected
and installed automatically.
2Go to Start > All Programs > Keysight IO Libraries Suite > Keysight
Connection Expert.
The
U2020
X-series is
detected

Getting Started 1
Keysight U2020 X-Series User’s Guide 19
3This verifies that the U2020 X-Series has been connected and properly
installed on the PC.
The device response appears.

1 Getting Started
20 Keysight U2020 X-Series User’s Guide
LED Indicator Sequence During Power-Up
Other LED indicators
Power up Green
Power on
Send the SYST:ERR? query
to read the error message. It
is recommended to return
the U2020 X-Series to
Keysight if this condition
persists after power cycle.
HW/OS error
Red
blinking
Amber
Red
Zeroing/calibration error
Internal zeroing and calibration
Off
Ready to use
Secure erase, flash formatting, or firmware update in progress.
An error is present in the SCPI error queue including input overload. If the error
queue is cleared (via the *CLS command) or the last error is read from the queue (via
the SYST:ERR? query), the indicator will turn off.
USB activity in progress.
Amber
blinking
Red
Green
blinking