Keysight Technologies 11667C Service manual

Keysight 11667C
Power Splitter
Operating and
Service Manual

2 Keysight 11667C Operating and Service Manual
Notices
Copyright Notice
© Keysight Technologies 1988 - 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
11667-90045
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 11667C Operating and Service Manual 3
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/mta
(product-specific information and support, software and documentation updates)
–www.keysight.com/find/assist
(worldwide contact information for repair and service)

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Keysight 11667C Operating and Service Manual 5
Table of Contents
Waste Electrical and Electronic Equipment (WEEE) Directive . . . . . . . . . . . . . . . . . . . . 3
Product category: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Sales and Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1 General Information
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Instrument Covered by Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Equipment Available . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2Installation
Initial Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Preparation for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Mating connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Returning the power splitter for service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3Operation
Operator’s Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4PerformanceTests
Input Return Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Procedure - 0.01 to 40 GHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Procedure - 40 to 50 GHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Output Tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Procedure - 0.01 to 40 GHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Procedure - 40 to 50 GHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Source Match (Equivalent Output SWR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5Adjustments
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

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Keysight 11667C Operating and Service Manual 7
List of Figures
Figure 1-1 Keysight 11667C schematic and dimensions . . . . . . . . . . . . . . . . . . . 14
Figure 4-1 Input return loss test setup 0.01 to 40 GHz . . . . . . . . . . . . . . . . . . . . 25
Figure 4-2 Input Return Loss Test Setup 40 to 50 GHz . . . . . . . . . . . . . . . . . . . . 26
Figure 4-3 Output tracking test setup 0.01 to 40 GHz . . . . . . . . . . . . . . . . . . . . . 28
Figure 4-4 Output tracking test setup 40 to 50 GHz . . . . . . . . . . . . . . . . . . . . . . 29
Figure 4-5 Performance test record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

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Keysight 11667C Operating and Service Manual 9
List of Tables
Table 1-1 General specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 1-2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 1-3 Mechanical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 1-4 Supplemental characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 2-1 Environmental requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

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Keysight 11667C Power Splitter
Operating and Service Manual
11
1 General Information
Specifications 12
Instrument Covered by Manual 13
Description 14
Equipment Available 15
This manual contains operating and service information for the Keysight 11667C power splitter. The
microfiche part number of the power splitter is 11667-90045. Use this number to order microfilm
transparencies of this manual. The microfiche package includes the latest manual changes
supplement and relevant service notes.

1 General Information
12 Keysight 11667C Operating and Service Manual
Specifications
Table 1-1 lists performance specifications. The instrument is tested against these performance
standards. Table 1-2 provides supplemental (non-warranted) characteristics of the Keysight
11667C.These are also denoted as typical, nominal, or approximate.
Table 1-1 General specifications
Description Value
Frequency range DC to 50 GHz
Maximum power +27 dBm
Connectors 2.4 mm female on all ports
Table 1-2 Electrical specifications
Description Frequency
DC to 18 GHz DC to 26.5 GHz DC to 40 GHz DC to 50 GHz
Input return loss (SWR) 20 dB (1.22) 16 dB (1.38) 14 dB (1.50) 12 dB (1.65)
Equivalent output SWR
(leveling or ratio measurements) 1.29 1.29 1.50 1.65
Output tracking
(between output arms) 0.30 dB 0.35 dB 0.40 dB 0.40 dB
Table 1-3 Mechanical specifications
Description Value
Pin depth 0.000 to 0.076 mm (0.000 to 0.003 in)[a]
[a] Allowable recession of the end of the female center pin behind the outer conductor mating plane.
Dimensions 35.2 mm H x 35.2 mm W x 10 mm D (1.4 x 1.4 x 0.4 in)
Weight Net 0.06 kg (0.13 lb)
Shipping 0.14 kg (0.3 lb)
Table 1-4 Supplemental characteristics
Description Frequency
DC to 18 GHz DC to 26.5 GHz DC to 40 GHz DC to 50 GHz
Phase tracking (between output arms) 2.0° 2.5° 3.0° 3.0°
Insertion loss 6.0 dB 7.0 dB 8.0 dB 8.5 dB

General Information 1
Keysight 11667C Operating and Service Manual 13
Instrument Covered by Manual
Each Keysight 11667C has a unique serial number. The content of this manual applies directly to
power splitters with serial number 00101 and above.
An Keysight 11667C manufactured after the printing of this manual may be different from those
documented in this manual. The manual for that instrument is supplied with a manual changes
supplement that documents the differences.
In addition to change information, the supplement may contain information that applies to all
instruments, regardless of serial number. To keep this manual as current as possible, periodically
request the latest manual changes supplement. The supplement for this manual is keyed to it's
print date and part number. Copies of the supplement are available from Keysight.

1 General Information
14 Keysight 11667C Operating and Service Manual
Description
The Keysight 11667C is a two-resistor power splitter used in network analysis where one output
arm is used for leveling or to supply a reference signal for ratio measurements.
In a network analyzer system, the node at the fork of the power splitter is held constant by the
leveling action of the network analyzer reference channel (see Figure 1-1). Because a virtual
ground is present at the node, the resistance in each output arm is 50 ohms, giving a 50 ohm
matched output impedance.
The ratio between the two power splitter arms is not affected by source power level variation.
Variations in power level appear in both arms equally and simultaneously.
Figure 1-1 Keysight 11667C schematic and dimensions

General Information 1
Keysight 11667C Operating and Service Manual 15
Equipment Available
The power splitter’s 2.4 mm connectors are compatible with all other 2.4 mm connectors. Keysight
also produces adapters from 2.4 mm to other coaxial connector types. Refer to 2.4 mm ADAPTERS
and CALIBRATION ACCESSORIES, part number 11900-90003, for a list of these products and their
specifications.

1 General Information
16 Keysight 11667C Operating and Service Manual
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Keysight 11667C Power Splitter
Operating and Service Manual
17
2 Installation
Initial Inspection 18
Preparation for Use 19

2Installation
18 Keysight 11667C Operating and Service Manual
Initial Inspection
If the shipping container or cushioning material is damaged, do not discard them until the power
splitter has been checked mechanically and electrically.
Inspect the power splitter for mechanical damage.
Electrically test the power splitter. Refer to Performance Tests.
Notify your nearest Keysight office if there is mechanical damage or defect, or if the power splitter
does not pass electrical tests. Notify the carrier if the shipping container is damaged or the
cushioning material shows signs of stress. Keep all shipping materials for the carrier's inspection.
Keysight will arrange for repair or replacement without waiting for a claim settlement.

Installation 2
Keysight 11667C Operating and Service Manual 19
Preparation for Use
Mating connectors
The accuracy and repeatability of each measurement depends on the proper care and use of the
2.4 mm connectors. Visually inspect and clean connectors before every connection. Measure
mechanical tolerances (pin depth) with a precision gage prior to the connector's first use, and
periodically thereafter. Torque connections to 8 in-lb (90 N-cm). Information concerning the
proper maintenance, inspection, and gaging of connectors is provided in the Keysight Microwave
Connector Care manual, part number 08510-90064.
Environment
Operate the power splitter only in environments within the limits listed. Storage and shipment
environments must meet the conditions shown.
Returning the power splitter for service
If you return the instrument to Keysight, follow the Packaging instructions. Attach a tag to the
instrument indicating the model and serial number, type of service required, return address, and
technical contact person with complete phone number.
CAUTION
Maximum input power to the Keysight 11667C is +27 dBm. Exceeding this limit will damage the
resistor network and void the warranty.
Table 2-1 Environmental requirements
Parameter Required values/ranges
Temperature
–Operating
– Storage and shipment
0 to +55 °C (+32 to +131 °F)
-40 to +75 °C (-40 to +167 °F)
Humidity
–Operating
– Storage and shipment
Up to 95% relative
Up to 95% relative
Altitude
–Operating
– Storage and shipment
Up to 4,572 metres (15,000 feet)
Up to 7,620 metres (25,000 feet)

2Installation
20 Keysight 11667C Operating and Service Manual
Packaging
Containers and materials identical to those used in factory packaging are available through
Keysight offices. If you choose to package the instrument with commercially available materials,
follow these instructions:
1Place the power splitter completely inside an anti-static bag.
2Use a strong shipping container. A double-wall carton made of 350-pound test material is
adequate.
3Use a 7 to 10 cm (3 to 4 in) layer of shock-absorbing material around all sides of the instrument
to provide a firm cushion and prevent movement inside the container.
4Seal the shipping container securely.
5Mark the shipping container FRAGILE.