Operations and
Installation Manual
Keysight 85132E/F
3.5 mm to 7 mm
Test Port Return Cables
Notices
© Keysight Technologies, Inc.
1987-2016
No part of this manual may be
reproduced 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 Technologies, Inc. as
governed by United States and
international copyright laws.
Trademark Acknowledgments
Manual Part Number
85132-90010
Edition
Edition 1, September 2016
Supersedes: February 2015
Printed in USA/Malaysia
Published by:
Keysight Technologies
1400 Fountaingrove Parkway
Santa Rosa, CA 95403
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
DISCLAIMS ALL WARRANTIES,
EITHER EXPRESS OR IMPLIED WITH
REGARD TO THIS MANUAL AND
ANY INFORMATION CONTAINED
HEREIN, INCLUDING BUT NOT
LIMITED TO THE IMPLIED
WARRANTIES 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
DOCUMENT OR ANY INFORMATION
CONTAINED HEREIN. SHOULD
KEYSIGHT AND THE USER HAVE A
SEPARATE WRITTEN AGREEMENT
WITH WARRANTY TERMS
COVERING THE MATERIAL IN THIS
DOCUMENT THAT CONFLICT WITH
THESE TERMS, THE WARRANTY
TERMS IN THE SEPARATE
AGREEMENT WILL CONTROL.
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.
U.S. Government Rights
The Software is “commercial
computer software,” as defined
by Federal Acquisition Regulation
(“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.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 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 documentation that is
not customarily provided to the
public; or (2) Relinquish to, or
otherwise provide, the
government rights in excess of
these rights customarily provided
to the public to use, modify,
reproduce, release, perform,
display, or disclose commercial
computer software 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
computer 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 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.
Safety Notices
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 proceed beyond a CAUTION
notice until the indicated conditions
are fully understood and met.
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.
85132E/F Return Cables
85132E/F Return Cables
General Information
To obtain optimum performance from this adapter kit, observe these simple precautions:
— Make connections carefully to avoid misalignment and connector damage, which will result in
inaccurate measurements.
— Keep the connectors free of dirt and any particles.
— When you clean the connectors, try using compressed air first. Do not use abrasives. With a
clean foam swab, apply only isopropyl alcohol.
— For more information, refer to the Connector Care for RF and Microwave Coaxial Connectors
document. It can be viewed online by searching for part number 08510-90064 at
www.keysight.com.
Description
The 85132E and 85132F differ from one another mainly in length and insertion loss specifications.
Both are test port return cables designed specifically for use with 7 mm calibration and verification
kits and test sets with NMD-3.5 mm ports as part of a network analyzer system. the 85132E
consists of a single, 97.2 cm (38.25 inches) long cable with a 7 mm connector on the DUT end and
an NMD-3.5 mm (f) connector on the test set end. The 85132E is used primarily with
Reflection/Transmission test sets. The 85132F consists of two identical cables that are each 62.9
cm (24.75 inches) long and is used primarily with full S-parameter test sets. The cables in the
85132F cable set are also available individually as Keysight part number 85132-60017 (Was:
85132-60004). Any of the two individual cables can be used to make a set.
2 Operating and Service Manual 85132-90010
85132E/F Return Cables
Specifications
Keysight Technologies guarantees that the performance of your cables will equal or exceed the
following specifications, at frequencies <18 GHz:
SWR ≤1.3 (17.7 dB return loss)
Insertion Loss (in dB)
Recession of center conductor shoulder behind outer conductor mating plane.
NMD-3.5 mm (f) connector 0.005 to 0.056 mm (0.0002 to 0.0022 inch)
7 mm connector with collet removed 0.005 to 0.021 mm (0.0002 to 0.0008 inch)
Protrusion of 7 mm center pin with
collet in place
0.05 to 0.25 mm (0.002 to 0.010 inch)
Supplemental Performance Data
The following data gives further information about the typical performance of 85132E/F cables.
Magnitude stability (dB) and
Phase stability (degrees)
≤0.22 dB change, 85132E
≤0.12 dB change, 85132F
Operating and Service Manual 85132-90010 3
85132E/F Return Cables
with a 90 degree, 3 inch bend radius
≤0.16 (f)
≤0.13 (f)
a
+0.8, 85132E
a
+0.5, 85132F
a. (f) = frequency in GHz.
Electrical length of the 85132E cable is approximately 1.150 m and it is approximately 0.74 m for
the 85132F.
Performance Tests
Use a network analyzer to perform the following tests upon your cables as soon as you receive
them. Periodically repeat the tests to determine if the performance is still satisfactory or if the
cables need to be replaced.
Figure 1 Return Loss Setup
Return loss is measured by connecting a 50 ohm fixed load termination through a 10 cm airline to
the test cable, then attaching the cable to port one of the test set (see Figure 1).
The effects of an imperfect load may be gated out using the network analyzer time domain option.
Refer to your network analyzer’s Help system for specific instructions on
using the functions mentioned in the return loss test below.
1. Preset the analyzer.
2. Set a stimulus start frequency of the analyzer’s lowest frequency.
3. Set a stimulus stop frequency of 18 GHz.
4. Set an IF bandwidth of 100 Hz.
5. Perform, and then save, a 3.5 mm 1-port S11 calibration.
6. With correction turned on, select the time domain mode.
7. Set a stimulus start time for the sweep to –0.05 nano-seconds.
8. Set a stimulus stop time for the sweep to 6.5 nano-seconds for the 85132F or 9.5
nano-seconds for the 85132E.
4 Operating and Service Manual 85132-90010
85132E/F Return Cables
9. Select the gating function and gate-out everything but the cable. See Figure 2.
10.Select the analyzer’s frequency domain mode.
11.Use the markers to read the return loss value.
Figure 2 Analyzer Trace Showing Location of Gates and Airline
Insertion loss is measured by terminating the cable with a short and then measuring return loss.
Measure with the 1-port S11 calibration, made in the previous procedure, turned on. The values
shown on the CRT represent an out-and-back path for the signal, which is twice the insertion loss
for the cable. Therefore, it is necessary to divide your worst case insertion loss by 2 before
comparing it to the specifications in the beginning of this document (see Figure 3).
Figure 3 Insertion Loss Setup
Operating and Service Manual 85132-90010 5
Loading...