Agilent Technologies 87512A Operation manual

Agilent 87512A/B TRANSMISSION/REFLECTION TEST KIT
OPERA
TION AND SERVICE MANUAL
SERIAL NUMBERS
This manual applies directly to instruments with serial num
ber prex 3244J.
F
or additional imp ortan
t information ab out serial numbers, read
\INSTRUMENT COVERED BY MANUAL" in Chapter 1.
Agilent Part No. 87512-90020
Printed in JAPAN February 2001

Notice
The information contained in this do cument is sub ject to c
hange without notice.
This do cument contains proprietary information which is protected b
ycop
yright. All righ
ts
are reserved. No part of this document may b e photo copied, reproduced, or translated to
another language without the prior written consent of the Agilent Technologies.
Agilent Tec
hnologies Japan, Ltd.
Comp onent Test PGU-Kob e
1-3-2, Murotani, Nishi-ku, Kobe-shi,
Hyogo, 651-2241 Japan
c
 Copyright 1990, 1992, 2000, 2001 AgilentTechnologies Japan, Ltd.

Manual Printing History
The man
ual printing date and part number indicate its current edition. The prin
ting
date changes when a new edition is printed. (Minor corrections and updates whic
hare
incorp orated at reprint do not cause the date to change.) The manual part number changes
when extensiv
e technical changes are incorp orated.
October 1990 ::::::::: ::::: : ::::::::: ::::: ::::: ::::: : ::::::::: ::::: ::::: :::::
First Edition
October 1992
::::: : :::: ::::: ::::: ::::: ::::: : :::
Second Edition (part number: 87512-90010)
March 2000 ::::::::: ::::: :::::::::::::: ::::: :::
Third Edition (part num
ber: 87512-90010)
February 2001 :::::::::
::::::::: ::::: ::::: :::::
F
ourth Edition (part number: 87512-90020)
Safety Summary
The following general safety precautions must be observed during all phases of operation,
service, and repair of this instrument. Failure to comply with these precautions or with
specic WARNINGS given elsewhere in this manual violates safety standards of design,
manufacture, and intended use of the instrument.
The Agilent Technologies assumes no liability for the customer's failure to comply with these
requirements.
DO NOT Operate In An Explosive Atmosphere
Do not op erate the instrument in the presence of ammable gasses or fumes. Operation of any
electrical instrument in such an environment constitutes a safety hazard.
Keep Away From Live Circuits
Operating personnel must not remove the instrument covers. Comp onent replacement and
internal adjustments must b e made by qualied maintenance personnel. Do not replace
components with the power cable connected. Under certain conditions, dangerous voltages
may exist even with the p ower cable removed. To avoid injuries, always disconnect power and
discharge circuits b efore touching them.
DO NOT Service Or Adjust Alone
Do not attempt internal service or adjustment unless another p erson, capable of rendering
rst aid and resuscitation, is present.
DO NOT Substitute Parts Or Modify Instrument
Because of the danger of introducing additional hazards, do not substitute parts or
perform unauthorized mo dications to the instrument. Return the instrument to a Agilent
Technologies Sales and Service Oce for service and repair to ensure the safety features are
maintained.
iii

Dangerous Procedure W
arnings
Warning
s, suc
has
the example b elo
w, precede p otentially dangerous procedures throughout
this manual. Instructions contained in the warnings must be followed.
Warning
Dangerous voltages, capable of causing death, are present in this instrument.
Use extreme caution when handling, testing, and adjusting this instrument.
Typeface Conventions
Bold Boldface type is used when a term is dened. For example:
icons
are
symbols.
Italics Italic type is used for emphasis and for titles of manuals and other
publications.
Italic typ e is also used for keyboard entries when a name or a variable
must b e typed in place of the words in italics. For example: copy
lename means to type the word copy , to type a space, and then to
type the name of a le suchas file1 .
Computer Computer font is used for on-screen prompts and messages.
4
HARDKEYS
5 Labeled keys on the instrument front panel are enclosed in 45
.
NNNNNNNNNNNNNNNNNNNNNNNNNN
SOFTKEYS Softkeys lo cated to the right of the CRTare enclosed in
NNNNN
.
Certification
Agilent Technologies certies that this pro duct met its published sp ecications at the time
of shipmentfromthe factory. Agilent Technologies further certies that its calibration
measurements are traceable to the United States National Institute of Standards and
Technology, to the extent allowed bytheInstitution's calibration facility,orto the calibration
facilities of other International Standards Organization members.
iv

W
arranty
Agilent Technologies instrument product is warranted against defects in material and
workmanship for a perio d of one y
ear from the date of shipmen
t, except that in the case of
certain componen
ts listed in Chapter 1ofthis manual, the warranty shall b e for the specied
perio d. During the warranty perio d, Agilent Technologies will, at its option, either repair or
replace pro ducts which prove to b e defectiv
e.
For warranty service or repair, this pro duct m
ust b e returned to a service facilit y designated
by Agilent Technologies. The Buyer shall prepay shipping charges to Agilent Technologies and
Agilent Technologies shall pay shipping charges to return the pro duct to the Buyer. However,
The Buyer shall payall shipping c
harges, duties, and taxes for pro ducts returned to Agilent
Tec
hnologies from another country
.
Agilen
tT
echnologies w
arrants that its software and rmware designated by Agilent
Technologies for use with an instrument will execute its programming instruction when
property installed on that instrument. Agilent Technologies does not warrant that the
operation of the instrumen
t, or software, or rmware will be uninterrupted or error free.
Limitation Of Warranty
The foregoing warranty shall not apply to defects resulting from improp er or inadequate
maintenance by Buyer, Buyer-supplied software or interfacing, unauthorized mo dication or
misuse, op eration outside of the environmental sp ecications for the product, or improp er site
preparation or maintenance.
No other warranty is expressed or implied. Agilent Technologies specical ly disclaims the
implied warranties of merchantability and tness for a particular purpose.
Exclusive Remedies
The remedies provided herein are buyer's sole and exclusive remedies. Agilent Technologies
shal l not be liable for any direct, indirect, special, incidental, or consequential damages, whether
based on contract, tort, or any other legal theory.
Assistance
Pro duct maintenance agreements and other customer assistance agreements are available for
AgilentTechnologies pro ducts.
For any assistance, contact your nearest AgilentTechnologies Sales and Service Oce.
Address are provided at the back of this manual.
v

Safety Symbols
General denitions of safetysymbols used on equipment or in manuals.
Instruction manual symbol: the product will be marked with this symbol
when it is necessary for the user to refer to the instruction manual in order to
protect against damage to the instrument.
Indicates dangerous voltage (terminals fed from the interior by voltage
exceeding 1000 v
olts m
ust b e so marked).
Protective conductor terminal. For protection against electrical sho ck in case
of a fault. Used with wiring terminals to indicate the terminal whic
hm
ust b e
connected to ground before operating equipmen
t.
Low-noise or noiseless, clean ground (earth) terminal. Used for a signal
common, as well as pro
viding protection against electrical sho ck in case of
fault. A terminal marked with this symbol must be connected to ground
in the manner described in the installation (Operation) manual, and b efore
operating the equipment.
Frame or chassis terminal. A connection to the frame (chassis) of the
equipment which normally includes all exposed metal structures.
Alternating current (power line).
Direct current (power line).
Alternating or direct current (p ower line).
Warning denotes a hazard. It calls attention to a pro cedure, practice,
condition or the like, which, if not correctly p erformed or adhered to, could
result in injury or death to personnel.
Caution sign denotes a hazard. It calls attention to a procedure, practice,
condition or the like, which, if not correctly p erformed or adhered to, could
result in damage to or destruction of part or all of the pro duct.
Note denotes imp ortant information. It calls attention to a procedure,
practice, condition or the like, which is essential to highlight.
vi

Contents
1. General Information
INTRODUCTION . . . . . . . . . . . . . . . . . ... . . . . . . 1-1
USING THE 87512A/B . . . . . . . . . . . . . . . . . . . . . . . . 1-1
INSTR
UMENTS CO
VERED BY MANUAL . . . . . . . . . . . . . . . 1-2
DESCRIPTION AND OPERATING CHARACTERISTICS OF THE
INSTRUMENT . . . . . . ... . .... . . . . . . . . . . . . 1-2
A
CCESSORIES . .... .. ... .. .. .. .. ... .. . . . . 1-4
Accessories Supplied . . . . . . . . . . . . . . . .... .. . . . . 1-4
Accessories Available . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Calibration and Accessory Kits . . . . . . . . . . . . . . . . . . . 1-4
Cable Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
OPERATING AND SAFETY PRECAUTIONS . . . . . . . . . . . . . . 1-5
Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
RECOMMENDED TEST EQUIPMENT . . . . . . . . . . . . . . . . 1-5
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
OPERATING CHARACTERISTICS . . . . . . . . . . . . . . . . . . 1-6
Denitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
2. Installation
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
INITIAL INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . 2-1
ENVIRONMENTAL CONSIDERATIONS . . . . . . . . . . . . . . . . 2-2
Operating and Storage . . . . . . . . . . . . . . . . . . . . . . . . 2-2
PREPARATION FOR USE . . . . . . . . . . . . . . . . . . . . . . 2-2
Connecting the Test Kit . . . . . . . . . . . . . . . . . . . . . . . 2-2
Mating Connectors . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Power and Control Connections . . . . . . . . . . . . . . . . . . . . 2-3
PACKAGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
3. Operation
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
TYPICAL MEASUREMENT SETUP . . . . . . . . . . . . . . . . . . 3-2
One Port Measurements . . . . . . . . . . . . . . . . . . . . . . . 3-2
One Port Calibration . . . . . . . . . . . . . . . . . . . . . . . 3-2
Reection Co ecient/Return Loss . . . . . . . . . . . . . . . . . 3-3
Complex Imp edance . . . . . . . . . . . . . . . . . . . . . . . . 3-3
TwoPort Measurements . . . . . . . . . . . . . . . . . . . . . . . 3-3
TwoPort Calibration . . . . . . . . . . . . . . . . . . . . . . . 3-3
Transmission Measurements . . . . . . . . . . . . . . . . . . . . 3-3
Contents-1

4. Operational V
erication
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
VERIFICATION CYCLE . . . . . . . . . . . . . . . . . . . . . . . 4-1
EQUIPMENT REQUIRED .. .. .. ... .. .. .. .. ... . . 4-1
INSERTION LOSS TEST WITH AN 8751A .... . . . . . . . . . . . 4-3
T
est Equipmen
t. . . . . . . .. .. ... .. .. .. .. ... . . 4-3
Pro cedure . . . . . . . . . . . . . . . . . . . . . .... . . . . 4-3
INSERTION LOSS TEST WITHOUT AN 8751A .... .. . . . . . . . 4-5
Test Equipmen
t. . . . . .... .. ... .. .. .. .. ... . . 4-5
Pro cedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
5. Service
A. Manual Changes
Intro duction . . . . . . . . . . .... . . . . . . . . . . . . . . . A-1
MANUAL CHANGES . . ....... ... .. .. .. .. ... . . A-1
Change 1 . . . . . . . . . . . . . . . . ...... . . . . . . . . A-1
Page 1-3, Table . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Page 1-6, Tab el 1-2 Specications . . . . . . . . . . . . . . . . . . . A-2
Page 1-6, Tab el 1-3 Operating Characteristics . . . . . . . . . . . . . A-2
Page 2-1, Tab el 2-1 Contents of the 87512A/B . . . . . . . . . . . . . A-2
Page 5-3, Tab el 5-1. 87512A Signal Divider Replaceable Parts Lists . . . . A-2
Page 5-3, Tab el 5-2. 87512B Signal Divider Replaceable Parts Lists . . . . A-2
Contents-2

Figures
1-1. 87512A/B Transmission/reection Test Kit with Accessories Supplied . . . 1-3
2-1. Test Kit Connections . . . . . . . . . . . . . ..... . . . . . . 2-2
3-1. Test Kit Features . . . . . . . .... .. .. .. ... .. .. .. 3-1
3-2. T
ypical Measurement Setup . . . . . . . . . . . . . . . . . . . . . 3-2
4-1. Insertion Loss Test Setup With an 8751A . . . . . . . . . .... . . 4-4
4-2. Insertion Loss Test Without an 8751A Setup .... . . . . . . . . . . 4-5
5-1. 87512A/B Signal Divider Explo ded View . . . . . . . . . . . . . . . 5-2
Tables
1-1. Accessories Available . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2-1. Contents of the 87512A/B . . . . . . . . . . . . . . . . . . . . . . 2-1
4-1. Recommended Test Equipment . . . . . . . . . . . . . . . . . . . . 4-2
5-1. 87512A Signal Divider Replaceable Parts Lists . . . . . . . . . . . . . 5-3
5-2. 87512B Signal Divider Replaceable Parts Lists . . . . . . . . . . . . . 5-3
A-1. Manual Changes by Serial Number . . . . . . . . . . . . . . . . . . A-1
Contents-3

1
General Information
INTRODUCTION
The purpose of this manual is to enable you to use your 87512A or 87512B
transmission/reection test kit eciently and conden
tly.This man
ual con
tains both general
and specic information. When information applies to b oth the 87512A (the 50 test kit)
and the 87512B (the 75 test kit) the name 87512A/B will b e used. To use the 87512A/B
to perform asp
ecic function (without reading the entire manual), follow the directions in
\USING THE 87512A/B".
This chapter,
(1) outlines how to begin using the 87512A/B as quickly as p ossible,
(2) describes what instrument are covered by this manual,
(3) describes the test kit itself,
(4) mentions op erating precautions, safety considerations and warranty restrictions,
(5) lists the additional equipment required, and
(6) denes and lists the required instrument sp ecications.
USING THE 87512A/B
The 87512A/B has been designed to op erate specically with the Agilent Technologies
network analyzer.
To install the instrument, turn to Chapter 2.
Tooperate the instrument, turn to Chapter 3.
To check the prop er op eration of the 87512A/B, see the Chapter 4.
To troublesho ot the 87512A/B , turn to Chapter 5.
General Information 1-1

INSTRUMENTS COVERED BY MANUAL
You will nd a two-part serial numb er inside the cov
er of the test kit carrying case. The rst
four digits and the letter are the serial num
ber prex. The last v
e digits are the sequential
sux which is unique to eac
h test kit. The contents of this manual apply directly to test kits
with the same serial number prex as the one(s) on the title page under the heading SERIAL
NUMBERS.
If the serial prex of your test kit is not listed on the title page, y
our instrument diers from
those do cumented in this manual. The dierences are documented in the yellow manual
changes supplement supplied with the manual.
To keep this manual as current and accurate as possible, Agilent Tec
hnologies recommends
that you perio dically request the latest man
ual c
hanges supplement, as it may contain
replacemen
t information as well as change information. The supplement for this manual is
keyed to the manual's print date and part number (on the title page) and is available on
request from Agilent Technologies.
This manual is also available on microche form (the part number appears on the title page).
With the manual (in 4 2 6inch microlm transparency format) you will also receive the latest
manual changes supplement.
DESCRIPTION AND OPERATING CHARACTERISTICS OF THE
INSTRUMENT
The 87512A/B transmission/reection test kit has b een designed to op erate with the Agilent
Technologies network analyzer. The test kit provides aconvenient means of measuring the
reection and transmission characteristics of a 50 or 75 device in one direction. The
frequency range of the 87512A/B is dc to 2 GHz.
\SPECIFICATIONS" lists the operating sp ecications and characteristics of the 87512A/B.
The test kit is shown on the cover of this manual and is shown in Figure 3-1.
1-2 General Information

Figure 1-1. 87512A/B Transmission/reflection Test Kit with Accessories Supplied
No. Description AgilentPart Number QTY
87512A 87512B
(1) Carrying Case 87512-60011 87512-60012 1
(2) Resistive Signal Divider 87512-61001 87512-61002 1
(3) Semi-rigid cable 41952-61601 41952-61601 1
(4) Precision SHORTTermination 11512A 85036-60012 1
(5) Precision LOAD Termination 909C Opt. 012 909E 1
(6) DUT Return Cable 8120-4666 8120-4666 1
(7) Minimum Loss Pad, 50 -75  Not furnished 11852B 1
General Information 1-3

A
CCESSORIES
Accessories Supplied
Figure 1-1 shows the 87512A/B with the accessories supplied:
Carrying case
Semi-rigid cable
Precision SHOR
T termination
Precision LOAD termination
Minimum loss pad (only for the 87512B)
DUT return cable
Accessories Available
Calibration and Accessory Kits
The calibration kits listed in Table 1-1 contain the components required to characterize the
systematic errors of various measurement systems. The calibration kits also contain precision
adapters.
The accessory kits listed contain the comp onents generally required to measure devices with
the types of connectors indicated. Additional information is included in the analyzer's manual.
Table 1-1. Accessories Available
Connector Type Calibration Kit Accessory Kit
7mm 85031B N/A
1
Type-N 50 85032B 11853A
2
Type-N 75 85036B N/A
1
BNC 50 N/A
1
11854A
2
1 not available
2 use with 85032B typ e-N 50 calibration kit
Cable Sets
Use the 11851B 50 type-N cable set to extend the test p ort of the 87512A . Use the 11857B
75 type-N test port return cable set to extend the test port of the 87512B.
1-4 General Information

OPERA
TING AND SAFETY PRECAUTIONS
Operating
You need to observe only normal precautions in handling and operating the 87512A/B.Do
not exceed its op erating input level of +23 dBm.
Caution
Electrostatic discharge (ESD) can damage the highly sensitive micro circuits
in the 87512A/B test kits. ESD damage is most likely to occur when the test
kits are connected or disconnected. Protect them by wearing a grounding
strap that provides a path to ground of no less than 1 M and no more than
2.5 M. Alternatively
, ground yourself by touc
hing the outer shell of any
grounded instrumen
t chassis b efore touching the test p ort connectors.
Nev
er touch the center contacts of the connectors.
Use a work station equipped with an anti-static surface.
Service
The voltages in this test kit do not warrant more than normal caution for op erator safety.
Nevertheless, service should be performed by qualied personnel.
RECOMMENDED TEST EQUIPMENT
Table 4-1 lists equipment and accessories required for operational verication and repairing
the 87512A/B. The table notes which items are required to verify the p erformance of the
test kit and which are required to troublesho ot it. Other equipment may b e substituted if its
specications meet or exceed the specications listed in the critical specications column.
General Information 1-5

SPECIFICA
TIONS
Table 1-2 Specifications
Parameter 87512A 87512B
Nominal Imp edance 50 75
Frequency Range dc to 2 GHz dc to 2GHz
Operating Conditions
Temp erature 0

Cto55

C 0

Cto55

C
Relative Humidity <
95% at 40

C <
95% at 40

C
Dimensions 83 mm
2 91 mm
2
43 mm
(3.3 2 3.6 2 1.7 inches)
83 mm
2 91 mm
2
43 mm
(3.3 2 3.6 2 1.7 inches)
Weight410 g 410 g
OPERATING CHARACTERISTICS
Definitions
The op erating characteristics listed in Table 1-3 are those typical of most 87512A/B
instruments but are not guaranteed.
Typical but non-warranted p erformance characteristics intended to provide information useful
in applying the instrument. Operating characteristics are representative of most instruments,
though not necessarily tested in each unit and not eld tested.
Table 1-3. Operating Characteristics
Parameter 87512A 87512B
Insertion Loss
1
10 6 1dB 10 6 1dB
Equivalent Directivity
1
,
2
40 dB 40 dB
Equivalent Source Match
1
,
2
30 dB @dc  frequency  1GHz 25 dB
25 dB @1 GHz < frequency  2GHz
Damage Level +23 dBm +23 dBm
1 23 6 5

C
2 after calibration with the furnished terminations
1-6 General Information

2
Installation
INTRODUCTION
This chapter explains ho
wto install the 87512A/B test kit for use with the network analyzer.
The topics covered include initial insp ection, environmental considerations, positioning and
connecting the test kit for use, and pac
kaging the instrument.
INITIAL INSPECTION
Inspect the shipping container (including cushioning material) for damage. If it is damaged,
keep it until you have checked the contents for completeness. The contents are listed in
Table 2-1.
In addition, check the test kit mechanically and electrically. If the test kit and shipping
container are undamaged, performing the operation verication in Chapter 4 should suce for
incoming inspection. If the test kit do es not pass the verication, refer to the troublesho oting
pro cedures in Chapter 5.
If the shipping container is damaged and the test kit fails the verication procedure, or is
damaged, defective, or incomplete, keep the shipping materials and notify both the carrier and
the nearest Agilent Technologies oce. The Agilent Technologies oce will arrange for repair
or replacement of the test kit without waiting for settlement of the claim.
Table 2-1. Contents of the 87512A/B
Comp onent
AgilentModel/Part Number
87512A 87512B
Resistive Signal Divider 87512-61001 87512-61002
Carrying case 87512-60011 87512-60012
Semi-rigid cable 41952-61601 41952-61601
Precision SHORT termination 11512A 85036-60012
Precision LOAD termination 909C (Opt. 012) 909E
Minimum loss pad
1
Not included 11852B
DUT return cable 8120-4666 8120-4666
1 only for the 87512B
Installation 2-1

ENVIRONMENT
AL CONSIDERA
TIONS
Operating and Storage
The 87512A/B should b eop
erated in atemperature range between 0

Cand +55

Cwith
relative humidity between 5% and 95% at 40

C (non-condensing). It may b e op erated at
altitudes up to 4,500 meters (15,000) feet.
The 87512A/B may be stored in temperatures from
0
40

C to +70

C, with relative humidity
up to 90% at +65

C(non-condensing) and at altitudes up to 15,240 meters (50,000 feet).
PREPARATION FOR USE
Connecting the Test Kit
The 87512A/B is designed to mount directly to the network analyzer as shown in Figure 2-1.
The analyzer's R and A ports should be connected to the 87512A/B 's R(or INCIDENT) and
A (or REFLECTED) p orts, resp ectively.Theanalyzer's RF OUT p ort should b e connected
to the test kit RF IN port using semi-rigid cable.
The device under test should b e connected to the test set's TEST PORT. The exible
coaxial cable connects the test device output to the analyzer port B to allow transmission
measurements. A 75 to 50 minimum loss pad included in the 87512B matches the exible
cable and the analyzer's 50 port Bto 75 test devices.
Figure 2-1. Test Kit Connections
2-2 Installation

Note
Ensure that the test kit is rmly connected to the analyzer R and A port
connectors. If any of the connections are lo ose, the analyzer ma
y displa
y
erratic measuremen
ts.
Mating Connectors
The TEST PORT of the 87512A is a precision 50 type-N female connector and mates with
precision 50 type-N male connectors. The TEST POR
Tofthe 87512B is a precision 75
t
ype-N female connector and mates with precision 75 typ e-N male connectors.
Caution
Do not mate type-N 50 connectors to typ e-N 75 connectors or damage may
result.
The RF IN, R, and A p orts of the 87512A/B are precision 50 typ e-N connectors which
mate with the corresp onding precision type-N connectors whose dimensions conform to US
specication MIL-C-39012.
Power and Control Connections
Power is not required for the 87512A/B .
PACKAGING
If shipping to a Agilent Technologies service center is required, each test kit should be
repackaged using the original factory packaging materials.
Alteratively, comparable packaging materials may be used. Wrap the test kit in heavy pap er
or anti-static plastic. Use sucient sho ck absorbing material on all sides of the 87512A/B to
provide a thick, rm cushion and preventmovement. Seal the shipping container securely and
mark it FRAGILE .
In any correspondence with Agilent Technologies, refer to the 87512A/B by its full mo del and
serial numb er.
Installation 2-3