Keysight 11923A Service manual

Keysight 11923A 1.0 mm
Connector Launch Assembly
Operating and
Service Manual

2 Keysight 11923A Operating and Service Manual
Notices
Copyright Notice
© Keysight Technologies 1999 - 2019
No part of this manual may be reproduced in
any form or by any means (including electronic
storage and retrieval or translation into a for-
eign language) without prior agreement and
written consent from Keysight Technologies as
governed by United States and international
copyright laws.
Manual Part Number
11923-90001
Edition
Edition 2, February 27, 2019
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 furnished 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 products may be down-
loaded from the Web. Go to http://www.key-
sight.com/go/conformity. You can then search
by product number to find the latest Declara-
tion of Conformity.
U.S. Government Rights
The Software is “commercial computer soft-
ware,” as defined by Federal Acquisition Regu-
lation (“FAR”) 2.101. Pursuant to FAR 12.212
and 27.405-3 and Department of Defense FAR
Supplement (“DFARS”) 227.7202, the U.S.
government acquires commercial computer
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 standard
commercial license, which is embodied in its
End User License Agreement (EULA), a copy of
which can be found at http://www.key-
sight.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 Software. The EULA
and the license set forth therein, does not
require or permit, among other things, that
Keysight: (1) Furnish technical information
related to commercial computer software or
commercial computer software documenta-
tion that is not customarily provided to the
public; or (2) Relinquish to, or otherwise pro-
vide, the government rights in excess of these
rights customarily provided to the public to
use, modify, reproduce, release, perform, dis-
play, or disclose commercial computer soft-
ware or commercial computer 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 com-
puter software pursuant to the FAR and the
DFARS and are set forth specifically in writing
elsewhere in the EULA. Keysight shall be
under no obligation to update, revise or other-
wise modify the Software. With respect to any
technical data as defined by FAR 2.101, pursu-
ant 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 DOCU-
MENT IS PROVIDED “AS IS,” AND IS SUBJECT
TO BEING CHANGED, WITHOUT NOTICE, IN
FUTURE EDITIONS. FURTHER, TO THE MAXI-
MUM EXTENT PERMITTED BY APPLICABLE
LAW, KEYSIGHT DISCLAIMS ALL WARRAN-
TIES, EITHER EXPRESS OR IMPLIED, WITH
REGARD TO THIS MANUAL AND ANY INFOR-
MATION CONTAINED HEREIN, INCLUDING
BUT NOT LIMITED TO THE IMPLIED WARRAN-
TIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. KEYSIGHT
SHALL NOT BE LIABLE FOR ERRORS OR FOR
INCIDENTAL OR CONSEQUENTIAL DAMAGES
IN CONNECTION WITH THE FURNISHING,
USE, OR PERFORMANCE OF THIS DOCU-
MENT OR OF ANY INFORMATION CONTAINED
HEREIN. SHOULD KEYSIGHT AND THE USER
HAVE A SEPARATE WRITTEN AGREEMENT
WITH WARRANTY TERMS COVERING THE
MATERIAL IN THIS DOCUMENT THAT CON-
FLICT 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 procedure, 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 indi-
cated conditions are fully understood and met.
WARNING
A WARNING notice denotes a hazard. It calls
attention to an operating procedure, 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 11923A Operating and Service Manual 3
Certification
Keysight Technologies certifies that this product met its published specifications at the time of
shipment from the factory. Keysight Technologies further certifies that its calibration
measurements are traceable to the United States National Institute of Standards and Technology
(NIST, formerly NBS), to the extend allowed by the Institute’s calibration facility, and to the
calibration facilities of the other International Standards Organization members.
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.
Regulatory Markings
When you see this symbol on your instrument,
you should refer to the instrument’s instruction
manual for important information.
This symbol indicates hazardous voltages.
The laser radiation symbol is marked on products
that have a laser output.
This symbol indicates that the instrument
requires alternating current (ac) input.
This symbol indicates that the power line switch
is ON.
This symbol indicates that the power line switch
is OFF or in STANDBY position.
The CE mark is a registered trademark of the
European Community. If it is accompanied by a
year, it indicates the year the design was proven.
The CSA mark is a registered trademark of the
Canadian
Standards Association.
This text indicates that the instrument is an
Industrial Scientific and Medical Group 1 Class A
product (CISPER 11, Clause 4).
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.

4 Keysight 11923A Operating and Service Manual
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/adapters
(product-specific information and support, software and documentation updates)
–www.keysight.com/find/assist
(worldwide contact information for repair and service)

Keysight 11923A Operating and Service Manual 5
Table of Contents
Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Regulatory Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Waste Electrical and Electronic Equipment (WEEE) Directive . . . . . . . . . . . . . . . . . . . . 4
Product category: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Sales and Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1 General Information
Connector Launch Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Serial numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Incoming inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Clarifying connector sex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2 Specifications
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Supplemental Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Center conductor protrusion and pin depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Temperature - what to watch out for . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3 Mounting the Launch
Mounting the Launch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Creating the package or fixture wall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Threading the launch into the package or fixture . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Mounting the circuit inside the package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4MakingConnections
Making Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Electrostatic discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Visual Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Required inspection tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Obvious defects or damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Connector contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Concentricity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Mating plane surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Damaged connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Connector wear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Pin Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6 Keysight 11923A Operating and Service Manual
Protrusion and recession . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Connector Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Connector misalignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Cleaning Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Supplies and equipment needed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Basic cleaning procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Connection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Using the Torque Wrench . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Required wrenches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Torque wrench procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Disconnection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Handling and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Keysight 11923A Operating and Service Manual 7
List of Figures
Figure 1-1 Connector launch assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 1-2 Male and female connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 2-1 Supplemental mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . 17
Figure 3-1 Section view of machining detail for the package wall . . . . . . . . . . . . 22
Figure 3-2 Threading the launch into the package or fixture . . . . . . . . . . . . . . . . 23
Figure 3-3 Circuit mounting detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 4-1 Contact integrity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 4-2 Concentricity - female connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 4-3 Concentricity - male connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 4-4 Connector pin depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 4-5 Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 4-6 Forced misalignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 4-7 Cleaning illustration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

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Keysight 11923A Operating and Service Manual 9
List of Tables
Table 2-1 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 2-2 Supplemental electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . 17
Table 2-3 Supplemental mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . 18
Table 2-4 Environmental requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 4-1 Torque wrench information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

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Keysight 11923A 1.0 mm Connector Launch Assembly
Operating and Service Manual
11
1 General Information
Connector Launch Overview 12

1 General Information
12 Keysight 11923A Operating and Service Manual
Connector Launch Overview
Figure 1-1 Connector launch assembly
The 11923A 1.0-mm female connector launch assembly is designed for ultra-high frequency (up to
110 GHz) coaxial signal transmission into a microstrip package. The launch assembly facilitates
designing, building, testing, and troubleshooting high-frequency microcircuits, components, and
custom prototypes.
The launch assembly threads into a package or fixture housing. The user is responsible for the
machining of the package and installing the launch into the package. Procedures describing the
necessary geometry for machining the package wall and instructions for mounting the launch are
given in Chapter 3.
The launch assembly features a 1.0-mm female connector on one end and a gold-plated pin
interface to the microcircuit on the other.
– The 1.0-mm center conductor is supported by a low-loss plastic bead. The connector interface
utilizes an air dielectric for the highest accuracy and repeatability, and is designed to meet or
exceed the IEE Std 287 Precision Coaxial Connector GPC grade specifications.
– The launch assembly contains a glass-to-metal seal soldered inside the launch housing. The
gold-plated pin on the launch extends inside the package or fixture for connection onto the
circuit.
Serial numbers
A serial number label is attached to the foam-lined box containing the launch. The serial number is
made up of five numbers and is unique to each adapter.

General Information 1
Keysight 11923A Operating and Service Manual 13
Incoming inspection
Keysight Technologies will arrange for repair or replacement of incomplete or damaged shipments
without waiting for a settlement from the transportation company. When you send a device to
Keysight Technologies, include the following information:
– Your company name and address.
– A technical contact person within your company, and the person's complete phone number.
– If you are returning one or more devices, include the part numbers and serial numbers.
– Indicate the type of service required.
– Include any applicable information.
Clarifying connector sex
In this manual, connectors are referred to in terms of their device sex.
Figure 1-2 Male and female connectors

1 General Information
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Keysight 11923A 1.0 mm Connector Launch Assembly
Operating and Service Manual
15
2 Specifications
Electrical Specifications 16
Supplemental Characteristics 17
Environmental Requirements 19

2 Specifications
16 Keysight 11923A Operating and Service Manual
Electrical Specifications
Electrical specifications are performance standards or limits against which the launch assemblies
are tested.
Table 2-1 Electrical specifications
Frequency Value
Insertion loss DC to 110 GHz -10 dB

Specifications 2
Keysight 11923A Operating and Service Manual 17
Supplemental Characteristics
Supplemental characteristics are values which are typically met by the majority of the launches
tested at Keysight Technologies. These supplemental characteristics are intended to provide useful
information. They are typical but non-warranted performance parameters.
Center conductor protrusion and pin depth
The supplemental mechanical characteristics such as center conductor protrusion and pin depth
are important supplemental characteristics related to electrical performance. Pin depth is
measured mechanically and verified by electrical testing. This ensures that the 1.0-mm connector
does not exhibit any center conductor protrusion and has proper pin depth when it leaves the
factory.
Figure 2-1 Supplemental mechanical characteristics
Table 2-2 Supplemental electrical characteristics
Characteristic Frequency Typical value
Return loss DC to 110 GHz -16 dB
Maximum power DC to 110 GHz 6 W

2 Specifications
18 Keysight 11923A Operating and Service Manual
Table 2-3 Supplemental mechanical characteristics
Characteristic Typical value
Inside diameter of 1.0-mm outer conductor 1.000 ± 0.005 mm
Outside diameter of center conductor 0.434 ± 0.005 mm
Length of outer conductors[a]
[a] Reference place to reference plane
10.34 mm (nominal)
Inside diameter of launch body feedthru 0.38 ± 0.010 mm
Outside diameter of launch pin 0.162 ± 0.005 mm
1.0-mm female connector pin depth 0 (flush) to 0.025 mm (maximum recession)
Launch pin extension 0.32 ± 0.05 mm
Flatness of reference plane 0.010 mm (worst case)
Flatness of end of launch body 0.010 mm (worst case)

Specifications 2
Keysight 11923A Operating and Service Manual 19
Environmental Requirements
Temperature - what to watch out for
Due to the critical dimensions and tight tolerances of the 1.0-mm connector, electrical
characteristics will change with temperature. The operating temperature is a critical factor in the
performance during measurements and between calibrations.
Table 2-4 Environmental requirements
Parameter Required values/ranges
Operating temperature 0 to 55 °C (32 to 131 °F)
Storage temperature -40 to +75 °C (-40 to +167 °F)
Altitude
–Operation
–Storage
< 15,000 meters (_50,000 feet)
< 15,000 meters (_50,000 feet)
Relative humidity
–Operation
–Storage
Always non–condensing
0 to 80% (26 °C maximum dry bulb)
0 to 90%
CAUTION
Remember your fingers are a heat source, so avoid handling the devices unnecessarily.

2 Specifications
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