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Impedance Analyzers

Real characteristics – achieved only with an impedance analyzer

Only Keysight impedance analyzers provide unparalleled accuracy for component evaluation from mOhm to Mohm, from 5 Hz to 3 GHz. Add an impedance analyzer to your lab and achieve real characteristics of high quality components.

  • The E4990A Impedance Analyzer with a frequency range of 20 Hz to 120 MHz provides an industry best 0.045% (typ.) basic accuracy over a wide impedance range, with a 40 V built-in DC bias source.
  • The E4991B Impedance Analyzer with a frequency range of 1 MHz to 3 GHz provides 0.65% basic accuracy over a wide impedance range, with a 40 V built-in DC bias source (Option 001). Material measurement options provide temperature characteristics analysis capability from -55 °C to 150°C (Option 007) and direct read function of permittivity and permeability (Option 002).
  • The E5061B ENA series network analyzer with option 3L5/005 supports a wide frequency range from 5 Hz to 3 GHz, with 2% (typ.) basic accuracy, 40 V built-in DC bias source, network analysis, impedance analysis and Gain/Phase analysis capabilities.

Select the appropriate frequency range for your application

Keysight’s impedance analyzers provide the best performance in the industry with frequency options to meet your needs at an affordable price. You can select the most appropriate frequency range for your application, from 10 MHz to 3 GHz. Flexible frequency upgrade options are also available. You can choose just what you require today with the least amount of investment and upgrade later as needs arise. Select what’s best for you - and achieve both your engineering and business goals.

Compare All Impedance Analyzers (3)

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Power of Impedance Analyzer - Application Note
This application note describes the necessity of real-characteristics evaluation, and shows that the impedance analyzers only have capabilities to achieve real-characteristics.

Application Note 2019-01-28

Performing Impedance Analysis with the E5061B ENA Vector Network Analyzer - Application Note
This application note describes five common impedance analysis approaches used with impedance analyzers and network analyzers. It also describes how and when to use the E5061B for impedance analysis.

Application Note 2018-03-02

PDF PDF 2.10 MB
Measuring Frequency Response with E5061B LF Network Analyzer
This application note describes fundamentals on low frequency network analysis by featuring the E5061B LF-RF network analyzer. Here we mainly discuss simple low frequency 2-port device measurements and associated topics.

Application Note 2018-02-22

Impedance Analyzers and Network Analyzers - Application Note
This application note describes the benefits of using USB and LAN interfaces compared to GPIB. The target instruments are bench-top network analyzers, impedance analyzers and LCR meters.

Application Note 2018-01-18

Drive Down the Cost of Test Using the ENA Series Vector Network Analyzers - Application Note
Discussion of the contributions of the Keysight ENA series vector network analyzer to drive down the cost of test in production lines. Including an in depth analysis of the total cost of ownership.

Application Note 2017-07-05

PDF PDF 2.47 MB
Impedance Measurement Handbook - 6th Edition - Application Note
This 140 page handbook is Keysight Technologies's most detailed information on the basics of impedance measurements using Keysight's LCR meters and impedance analysers. It provides the theory, test set-upinformation, error discussion, etc.

Application Note 2016-11-02

Solutions for Measuring Permittivity and Permeability w/LCR Meters & Impedance Analyzers
This application note presents the technologies and methods for measuring permittivity and permeability. The document focuses on impedance measurement technology with the following advantages: Wide frequency range from 20Hz to 1GHz High measurement accuracy Simple preparations (fabrication of material, measurement setup) for measurement.

Application Note 2016-06-12

Characterizing Passive Components in Wireless Power Transfer (WPT) Systems - Application Note
This app note describes passive components used in wireless power transfer systems and their requirements as well as measurement solutions using Keysight network analyzers and impedance analyzers.

Application Note 2015-07-16

Improving Speed and Accuracy in the Testing of BTS Filters and Duplexers - Application Brief
This application brief explains why the E5080A ENA Series Network Analyzer is the ideal solution for BTS filters and duplexers manufacturing test.

Application Note 2015-02-11

Materials Measurement: Soil Materials - Application Brief
Soil materials such as rocks or clay also have electrical properties in addition to the mechanical properties as with other substances.

Application Note 2014-11-05

PDF PDF 925 KB
Materials Measurement: Liquid Materials - Application Brief
This application brief provides the solutions for measuring dielectric properties of liquid materials.

Application Note 2014-08-04

PDF PDF 1.24 MB
Materials Measurement: Magnetic Materials - Application Brief
This application brief provides the solutions for measuring magnetic materials.

Application Note 2014-07-17

PDF PDF 1.08 MB
Materials Measurement: Dielectric Materials - Application Brief
This application brief provides the solutions for measuring dielectric materials.

Application Note 2014-07-17

PDF PDF 935 KB
E4990A Impedance Analyzer Migration Guide from 4294A
This migration guide describes the difference between the E4990A and 4294A impedance analyzers.

Application Note 2014-06-15

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Impedance and Network Analysis Application List Application Note
This document provides the information of unique and new solutions for impedance and network analysis with using Keysight impedance analyzers, LCR meters and ENA series network analyzers.

Application Note 2012-10-30

Evaluating DC-DC Converters and PDN with the E5061B LF-RF Network Analyzer
This application note describes measurement methods for evaluating frequency domain characteristics of DC-DC converters and passive PDN components by using the E5061B LF-RF network analyzer.

Application Note 2012-09-03

Time Domain Analysis With a Network Analyzer Application Note (AN 1287-12)
This document focuses on time domain analysis (displays) generated from vector network analyzers (VNA). The intent is to provide engineers with frequency domain background, an in-depth view of how a time domain display is created from frequency domain data (S-parameters) and how to apply the time domain display to common problems in RF systems.

Application Note 2012-05-02

Using a Network and Impedance Analyzer to Evaluate 13.56 MHz RFID Tags and Readers/Writers
For engineers who work in RFID antenna design and test, this note discusses testing RFID antenna characteristics such as impedance and resonant-frequency with network and impedance analyzers.

Application Note 2012-02-08

Design Tutorial: E5061B ENA Custom Multiport Switch Solution Using L4491A
This application note describes how to configure a 12-port custom switch box with the L4491A switch platform and operation basics using the E5061B network analyzer.

Application Note 2011-11-29

PDF PDF 1016 KB
New Technologies for Accurate Impedance Measurement (40Hz to 110MHz)
Auto-balancing bridge method is the best technique to make an accurate impedance measurement in LF frequency. The recent technical innovation successfully expanded its upper frequency limitation from 40MHz to 110MHz. This Product Note discusses how its made and other new technologies included in...

Application Note 2008-11-20

Balanced Circuit Measurement with an Impedance Analyzer/LCR Meter/Network Analyzer (AN 346-2)
This application note describes the difference between a balanced circuit and an unbalanced circuit, and also explains how to make an unbalanced circuit measurement by the unbalanced instrument step by step.

Application Note 2008-04-10

PDF PDF 116 KB
16196A/B/C/D Correlating RF Impedance Measurements When Using SMD Test Fixtures
This Product Note explains that the ability to verify the correlation of impedance measurement results is dependent on the variety of factors.

Application Note 2007-03-06

Temperature Characteristic Evaluations of RF Components and Materials (AN 1464)
This application note introduces an efficient and highly reliable measurement system for evaluating temperature characteristics of components and materials using a combination of the E4991A-007.

Application Note 2004-10-14

Evaluation of MOS Capacitor Gate Oxide C-V Characteristics Using the Keysight 4294A(PN4294-3)
As a result of extremely high integration of logic LSIs, MOS FETs with gate lengths of 0.1 mm or less have been produced recently. A consequence of this miniaturization has been the need for very thin gate oxide layers.

Application Note 2003-06-26

Network, Spectrum, and Impedance Evaluation of Electronic Circuits and Components (AN 1308-1)
This Application Note describes how the Keysight 4395A/96B can be used to contribute fast cycle time for electronic circuit/component development.

Application Note 2001-12-19

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