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Measuring Dielectric Properties Using Keysight’s Materials Measurement Solutions
02 | Keysight | Measuring Dielectric Properties Using Keysight’s Materials Measurement Solutions - Brochure A wide variety of industries need a better understanding of the materials they are work - ing with to shorten design cycles, process monitoring, and quality assurance. Every material has a unique set of electrical characteristics that are dependent on its dielec - tric properties. Accurate measurements of these properties can provide scientists and engineers with valuable information to properly incorporate the material into its intended application. A dielectric materials measurement can provide critical design parameter information for many electronics applications. For example, the loss of a cable insulator, the impedance of a substrate, or the frequency of a dielectric resonator can be related to its dielectric properties. More recent applications in the area of aerospace, automotive, food and medical industries have also been found to benefit from knowledge of dielectric properties. The material evaluation systems that generate these measurements must combine precise measurement instruments, test fixtures that hold the material under test (MUT), and software that calculate and display material parameters. Keysight Technologies, Inc. offers you fast, accurate and often non-destructive solutions. The measurement instruments, such as network analyzers, impedance analyzers and LCR meters provide accurate measurement results with wide frequency range up to 1.1 THz. Fixtures are available that are based on coaxial probe, parallel plate, coaxial/ waveguide transmission lines, free space and resonant cavity methods. The easy-to-use materials measurement software streamlines the process of measuring complex permit - tivity and permeability. The table below shows product examples that can be measured by Keysight’s material test solutions. – Fast, accurate and non-destructive solutions – Wide frequency coverage, up to 1.1 THz – A variety of measurement methods supported Industry Application/products Electronics Capacitor, substrates, PCB, PCB antenna, ferrites, absorbers, SAR phantom materials Aerospace/defense Stealth, RAM (radiation absorbing materials), radomes Industrial materials Ceramics & composites: A/D and automotive components, coatings Polymers & plastics: fibers, films, insulation materials Hydrogel: disposable diaper, soft contact lens Liquid crystal: displays Other products containing these materials: tires, paint, adhesives, etc. Food & agriculture Food preservation (spoilage) research, food development for microwave, packaging, moisture measurements Forestry & mining Moisture measurements in wood or paper, oil content analysis Pharmaceutical & medical Drug research and manufacturing, bio-implants, human tissue characteriza - tion, biomass, fermentation
solutions cover all the measurement techniques. cal industries where sterilization is a must. the MUT inside a portion of an enclosed transmission line. is especially useful at mm-wave frequencies. Figure 1. Materials measurement techniques
04 | Keysight | Measuring Dielectric Properties Using Keysight’s Materials Measurement Solutions - Brochure Resonant cavity method Resonant cavities are high Q structures that resonate at certain frequencies. A sample of the material affects the center frequency and Q factor of the cavity. The permittivity can be calculated from these parameters. Keysight offers 85072A 10 GHz split cylinder resonator, as well as Split post dielectric resonators (SPDR). Parallel plate capacitor method The parallel plate capacitor method involves sandwiching a thin sheet of material be - tween two electrodes to form a capacitor. The method works best for accurate, low fre - quency measurements of thin sheets or liquids. A typical measurement system using the parallel plate method consists of an LCR meter or impedance analyzer. Keysight offers several test fixtures such as 16451B, 16452A and 16543A depending on material types and applied frequency ranges that can cover up to 1 GHz. Inductance measurement method This method derives the permeability by measuring the inductance of the material (to - roidal core). The concept is to wind some wire around MUT and evaluate the inductance with respect to the ends of the wire. The Keysight 16454A magnetic material test fixture provides an ideal structure for single-turn inductor, with no flux leakage when a toroidal core is inserted in it. Keysight N1501A dielectric probe kit
Keysight offers a variety of fixtures and measurement instruments that covers many material types. related literature for more information. Figure 2. Keysight materials measurement fixtures
1 GHz 20 GHz 50 GHz 100 GHz10 GHz1 MHz1 kHzDC
10 GHz split
1 MHz to 3 GHz
20 Hz to 120 MHz
Table 1. Keysight test fixtures and instruments 1
- Refer to “Keysight LCR Meters, Impedance Analyzers and Test Fixtures, Selection guide” (5952-
N1500A-VNAs.pdf) for more detail.
- N1501A with E4991B requires N1500A-004 software revision v2014-20150115 and above.
06 | Keysight | Measuring Dielectric Properties Using Keysight’s Materials Measurement Solutions - Brochure Software The Keysight N1500A materials measurement suite streamlines the process of measuring complex permittivity and permeability with a network analyzer. The easy-to-use soft - ware guides the user through setup and measurement, instantly converting S-parameter network analyzer data into the data format of your choice and displaying the results within seconds. Results can be charted in a variety of formats: e r’, er”, tan δ, μr’, μr”, tan δµ and Cole-Cole. A variety of measurement methods and mathematical models are provided to meet most application needs. The free space calibration option provides Keysight’s exclusive gated reflect line (GRL) calibration for measuring materials in free space. Arch reflectivity op - tion automates popular NRL arch method for measuring reflections off the surface of a sample. Resonant cavity option offers the highest loss tangent accuracy and resolution. Related Literature Basics of Measuring the Dielectric Properties of Materials, Application note, Literature number 5989-2589EN Solutions for Measuring Permittivity and Permeability with LCR Meters and Impedance Analyzers, Application note, Literature number 5980-2862EN Split Post Dielectric Resonators for Dielectric Measurements of Substrates, Application note, Literature number 5989-5384EN Keysight N1501A Dielectric Probe Kit, Technical overview, Literature number 5991-0264EN Keysight N1500A Materials Measurement Suite, Technical overview, Literature number 5992-0263EN Keysight 85072A 10-GHz Split Cylinder Resonator, Technical overview, Literature number 5989-6182EN Keysight LCR Meters, Impedance Analyzers and Test Fixtures, Selection guide, Literature number 5952-1430E Web Resources Visit our websites for additional product information. Materials Test Equipment: www.keysight.com/find/materials Network Analyzers: www.keysight.com/find/na Impedance Analyzers and LCR Meters: www.keysight.com/find/impedance
07 | Keysight | Measuring Dielectric Properties Using Keysight’s Materials Measurement Solutions - Brochure This information is subject to change without notice. © Keysight Technologies, 2013 - 2016 Published in USA, June 21, 2016 5991-2171EN www.keysight.com myKeysight www.keysight.com/find/mykeysight A personalized view into the information most relevant to you. Keysight Infoline www.keysight.com/find/Infoline Keysight’s insight to best in class information management. Free access to your Keysight equipment company reports and e-library. KEYSIGHT SERVICES Keysight Services www.keysight.com/find/service Our deep offering in design, test, and measurement services deploys an industry-leading array of people, processes, and tools. The result? We help you implement new technologies and engineer improved processes that lower costs. Three-Year Warranty www.keysight.com/find/ThreeYearWarranty Keysight’s committed to superior product quality and lower total cost of ownership. Keysight is the only test and measurement company with three-year warranty standard on all instruments, worldwide. And, we provide a one-year warranty on many accessories, calibration devices, systems and custom products. Keysight Assurance Plans www.keysight.com/find/AssurancePlans Up to ten years of protection and no budgetary surprises to ensure your instruments are operating to specification, so you can rely on accurate measurements. Keysight Channel Partners www.keysight.com/find/channelpartners Get the best of both worlds: Keysight’s measurement expertise and product breadth, combined with channel partner convenience. For more information on Keysight Technologies’ products, applications or services, please contact your local Keysight office. The complete list is available at: www.keysight.com/find/contactus Americas Canada (877) 894 4414 Brazil 55 11 3351 7010 Mexico 001 800 254 2440 United States (800) 829 4444 Asia Pacific Australia 1 800 629 485 China 800 810 0189 Hong Kong 800 938 693 India 1 800 11 2626 Japan 0120 (421) 345 Korea 080 769 0800 Malaysia 1 800 888 848 Singapore 1 800 375 8100 Taiwan 0800 047 866 Other AP Countries (65) 6375 8100 Europe & Middle East Austria 0800 001122 Belgium 0800 58580 Finland 0800 523252 France 0805 980333 Germany 0800 6270999 Ireland 1800 832700 Israel 1 809 343051 Italy 800 599100 Luxembourg +32 800 58580 Netherlands 0800 0233200 Russia 8800 5009286 Spain 800 000154 Sweden 0200 882255 Switzerland 0800 805353 Opt. 1 (DE) Opt. 2 (FR) Opt. 3 (IT) United Kingdom 0800 0260637 For other unlisted countries: www.keysight.com/find/contactus (BP-06-08-16) DEKRA Certified ISO9001 Quality Management System www.keysight.com/go/quality Keysight Technologies, Inc. DEKRA Certified ISO 9001:2015 Quality Management System Evolving Our unique combination of hardware, software, support, and people can help you reach your next breakthrough. We are unlocking the future of technology. From Hewlett-Packard to Agilent to Keysight