From the 4th of November through the 9th, the Antenna Measurement Techniques Association (AMTA) held its 29th annual symposium in St. Louis, MO. AMTA is a non-profit, professional organization that promotes advances in electromagnetic technologies applicable to antenna and radar cross-section measurements. The organization was created in the late 1970s by a small group of engineers and even today the conference maintains the feeling of a close, tight knit and highly focused community. For engineers and organizations in antenna development, measurements or antenna integration, this is a conference well worth attending. Over the years, the conference organizers have done an excellent job of arranging the program to allow attendees and exhibitors to get the maximum amount of peer-to-peer interaction, something hard to do at much larger shows. The show organizers and hosts do an excellent job in arranging a program that allows attendees to attend all tracks and still meet with equipment vendors to discuss the latest technology. This event drew more than 500 AMTA global members from industry, government and educational institutions to discuss the state-of-the-art in measurement theory and applications. The conference recognized the contributions of several members, presenting the AMTA Distinguished Service Achievement Award given to Ms. Janet O’Neil and Dr. Inder Gupta, as well as the formation of the Dr. Edmond S. Gillespie Engineering Fellowship, which was awarded to 20 distinguished AMTA members.
St. Louis, MO is an ideal setting for the 2007 AMTA conference. The city is home to corporate headquarters of many hi-tech companies such as Monsanto, Boeing's Integrated Defense and Phantom Works sectors, ESCO Technologies, and Anheuser-Busch (after all, conferences shouldn’t be all work). Missouri features an esteemed educational foundation of 26 local institutions of higher learning. Washington University in St. Louis, University of Missouri Rolla, and St. Louis University are just a few of the internationally recognized private research universities.
The short courses held on Sunday were focused on the Fundamentals of Antenna Measurements starting with the beginning concepts for measurement technique and building to advanced topics by the end of the lecture. The one-hour courses presented by Dr. Ed Joy covered fundamentals, near and far-field measurement techniques, anechoic chamber techniques, compact measurements and applications of antenna measurements. Dr. Joy is an IEEE Life Fellow holding BSEE, MSEE and PhD degrees in electrical engineering from the Georgia Institute of Technology and is currently Professor Emeritus of Electrical and Computer Engineering at his alma mater. An international lecturer, consultant and author, he has devoted 35 years to conducting research, teaching and consulting on antenna development and measurement techniques, and has presented 300+ seminars and published 200+ technical papers/research reports. Dr. Joy has also developed patents, including the flower petal reflector antenna, and has designed 20+ major antenna measurement facilities.
The advanced technical program got underway on Monday with a Keynote speech “AMTA and Boeing: Partners in Advancing Aerospace” by Don C. Winters, Vice President of Engineering and Information Technology at the Boeing Co. Phantom Works. Mr. Winter is a St. Louis native and has been employed at Boeing for 30 years with BS and MS degrees in Physics from the University of Missouri and an MBA from Washington University. Don currently leads the Engineering and Information Technology organization at the Boeing Phantom Works, a team of 1,100 engineers and scientists performing leading edge research spanning domains ranging from avionics and vehicle management systems to C4ISR to commercial aircraft.
Session one and two filled the first morning with presentations on near-field range issues and range design and evaluation. Speakers from both industry and academia focused on improving measurement accuracy (Near Field Measurement Errors Due To Neglecting Probe Cross-Polarization; Three-Dimensional Near Field/Far Field Correction; Extracting The Polarization From Bi-Polar Phase-less Near-Field Measurements; Mission to MARS - In Search of Antenna Pattern Craters, and various antenna measurement applications: “Conical Near-Field Antenna Measurement System;” “A Practical Application of an R-Card Fence; A Compact But Highly Flexible 5-Axis Positioner;” “A Method To Correct Measurement Errors In Far-Field Antenna Ranges;” and “A Comparison Of Measurements on a Dual-Receiver Antenna Range and Unique Application Of Chebyshev Absorbers.”
The afternoon sessions looked at RCS measurements topics: “Dynamic Radar Cross Section and Radar Doppler Measurements of Commercial Windmill Power Turbines;” “Predicted and Measured Doppler Signatures;” “Indoor Spherical 3-D RCS Near-Field Facility;” “Three-Dimensional Radar Imaging Using Interferometry;” “Implementation of a 'Cam' as an RCS Dual-Cal Standard and Bistatic RCS Measurements of an EBG-Sample with a Roll-Over-Elevation-Over-Azimuth Positioner” and a session on EM Material Design and Measurements: “Accurate Measurement of Dielectric Constant By Means of a Simple Waveguide Fixture;” “Electromagnetic Material Characterization Using a Rectangular Waveguide To Excite a Homogeneous Media in a Parallel-Plate Waveguide Using A Transverse Slot;” “Antenna Miniaturization Using Impedance;” “UWB Magneto-Dielectric Ground Plane For Low
Profile Antenna Applications;” “A Technique For Materials Characterization From Backscatter Measurements; A Three-Short Focused-Beam Calibration Technique For Material Characterization Measurements;” and “Surface Impedance Modeling of an Outdoor Groundwave Antenna Range with a Non-Uniform Ground Plane.”
Sessions 5, 6, 7 and 8 on Tuesday focused on Compact Range Measurements, EM Algorithms and Processing, and the continuation of part 2 of both the RCS Measurements and Near-field Range Topics, respectively. The Compact Range session chaired by Mr. Steve Brumley looked at topics such as: “RF Characterization of Omni Directional Antenna in Compact Antenna Test Facilty;” “Performance Comparison Between Hybrid and Super Hybrid Serrated Compact Antenna Test Ranges;” “Test of Wide Beam Low-Directional Satellite Antenna in Compact Range;” “Amplitude and Direction Evaluation of Very Small Stray Signals in Compact Range;” “Polarisation Dependent Scattering from the Serrations Of Compact Ranges;” “Blended Rolled Edge Reflector Alignment Method;” “Experimental Verification of the Focal Plane APC Method With The VAST-12 Antenna;” and “Quasi-Compact Range.”
The EM Algorithms and Processing chaired by Dr. Ivan LaHaie covered topics such as: “Analysis of Interaction Factors for Active Wireless Devices;” “Novel Edge Treatment of Truncated Field Probe Data;” “Application of the SWE-TO-PWE Antenna Diagnostics Technique to an Offset Reflector Antenna;” “An Algorithm for Automated Phase Center Determination and Its Implementation;” “Computation and Use of Characteristic Frequency Modes for Patch Antenna Design;” and “Development of a Radar Cross-Section Prediction Tool For Phased Array Antennas.”
Tuesday was also Student Day Activities, where local college students were invited to the AMTA symposium to sit in on one or two technical paper sessions, fly Boeing’s F/A-18 flight simulator and visit with exhibitors. Various factors have kept many US students from pursuing careers in science and engineering, leading to a growing shortage of technical professionals. To address the growing opportunities for technical graduates now, AMTA organizers presented a panel discussion featuring government, academic and industrial professionals in the “Electromagnetics Research and Development” field. These professionals led a roundtable discussion of misperceptions and issues of the engineering field as well as career opportunities for graduates.
The technical sessions on Wednesday chaired by Dr. Inder Gupta, focused on General Antenna and RF Measurements, mm-Wave/Quasi-Optical Measurements, Time Domain Measurements and an invited papers session on ACE and FCC licensing that included talks on “Antenna Measurement Facility Comparison Within The European Antenna Centre Of Excellence;” “ACE Web Services On Antenna Measurements” and “EDX - The Electromagnetic Data Exchange Format.” The General Antenna and RF measurement session featured talks on “Designing Small Size Low Frequency Antennas;” “Neural Network Approach to Detect Multiple Faults in Antenna Arrays;” “A New SAR Assessment Procedure for Homogeneous and
Heterogeneous Flat-Phantoms Based on Near-Field Free-Space Measurements;” “A Lower Frequency (UHF and S-Band) Open Boundary Quadridge Horn Antenna and the Use of the S to Ku-Band Horn as a Feed for Reflectors;” “Next Generation Phase Coherent Instrumentation Receiver;” and “A Novel Method for Measuring Differential Antennas Radiation Characteristic.”
Dr. Al Torres from Sierra Nevada Corp. (SNC), Sensors Systems and Technology (SST), chaired the Time Domain Measurement session, which featured talks on: “Time Domain Technique in Three Antenna Near-Field Measurement Methods;” “Measurements of Low Gain Antennas on a Ground Platform Using a Short Range Time Domain Far-Field Technique;” “Accurate Near-Field Measurements Using Time-Gating;” “VHF/UHF High Performance Absorbing Material Measurements in a Coaxial Line Using Time-Gating Techniques: Validation & Error Analysis;” “Time Domain Ultra-Wideband Antennas Characterization Facilities;” and “Time Domain Ultra-Wideband Antennas Characterization Facilities.”
Thursday was the wrap up day for the exhibition and conference. Four sessions held in the morning and afternoon included Specialized Antenna Measurements, Antenna Modeling and Measurements, Near-field Range (part III), and General Antenna and RF measurements (part II).
“A Method for the Remote Measurement of the Effective Area of Passive RFID Tag Antenna;” “Calibration of RE02 Common Mode Emissions Measurements for
Near Field To Far Field Amplitude Conversion”; “Characterization Of Passive UHF RFID Tag Performance;” “Space Qualifying Antennas;” “Ultra-Wideband Ground Wave System Measurements;” and “Active EMI Filtering for Automotive Applications.”
The Antenna Modeling and Measurements was chaired by Dr. Lydell Frasch of the Boeing Co. and featured presentations on: “The Device of the Embedded Control of Parameters of the Microwave Feeder Of Airborne Radar;” “The Effect of Range Length on the Measurement of TRP;” “Reconfigurable Antenna Arrays Using Pixel Elements;" and “Coordinate System Plotting for Antenna Measurements.”
The third and final session was focused on Near-field Range topics and was chaired by Dr. Dan Janning of the Air Force Research Lab. Papers included: “Full Space Wave Construction Via Single Near-field Measurement;” “The New Approach to Determination of the Amplitude and Phase Distribution in Antenna Aperture Plane;” “Wide Band Dual Polarized Probes for Near and Far Field Antenna Measurements Systems;” and “Rapid Spherical In-Situ Near-Field Antenna Test System For Radar Aircraft Testing.”
The General Antenna and RF Measurement session was co-chaired between Dr. Brian Fischer from General Dynamics Advanced Information System and Mr. Jeff Kemp from Georgia Tech Research Institute. This final session included talks on: “Dynamic Position Correction Using a Multi-Axis Controller for Higher Accuracy Measurements;” “Evaluation of the Telia Scattered Field Measurement Method for Estimation of In-Network Performance of Mobile Terminal Antennas;" “Compact Wideband Antenna Array for GNSS Receivers;” and “Implementation Issues of Planar Adaptive Antenna Array with Mutual Coupling.”
Approximately 40 companies were exhibiting at this year’s AMTA. Vendors were featuring their products and services and provided on-site expertise on the latest in antenna measurement techniques and hardware.
Aeroflex Test Solutions
Aeroflex Radar Systems Division is a leading provider of high performance instrumentation radar measurement systems that enable extremely precise RCS measurements. Over the last few years, Aeroflex has made significant investments to expand into markets that are predominately DoD-linked for Test and Evaluation and operational applications, including radars for long-range precision tracking of multiple targets, airspace and ground surveillance, airborne synthetic aperture radars (SAR), airborne target tracking, one-off applications, as well as engineering support and measurement sciences services.
Extending from the RCS business, Aeroflex Radar has amassed an extensive experience base in the design, development, fabrication, installation, training, operations, maintenance and management of advanced radar systems. In recent years, driven by evolving industry requirements, Aeroflex Radar has invested into development of new technologies and applications for these changing markets, and for new and future markets. While staying abreast of LO/CLO trends, Aeroflex Radar has refined novel technologies that extend its capabilities into larger market segments that present substantial revenue and growth opportunities.
As the world's leading aerospace company and the largest manufacturer of commercial jetliners and military aircraft, Boeing and its Technology Services group were exhibitors and host. Boeing designs and manufactures rotorcraft, electronic and defense systems, missiles, satellites, launch vehicles, and advanced information and communication systems.
Boeing has a long tradition of aerospace leadership and innovation, demonstrated in the
videos displaying the capabilities of its attack fighter and Chinook helicopters as well as the popular F/A-18 flight simulator that gave attendees the chance to land (or crash) onto an aircraft carrier. Boeing has measurement facilities across the country. For help finding the right Boeing experts, visit Boeing Technology Services at http://www.boeing.com/bts.
Agilent helps engineers maintain a competitive edge with Agilent antenna and radar cross-section (RCS) measurement products. Agilent instruments provide the greatest accuracy, reliability and productivity available. You can integrate its instruments into your antenna test systems to measure a wide range of data acquisition speeds and measurement sensitivities. Applications include: Near Field, Far Field and Radar Cross Section measurements.
Agilent works with channel partners who develop complete antenna test and range solutions. Agilent instruments, such as PNAs, ENAs, PSGs and accessories, are sold either directly to the end user or through the channel partners.
Antenna Research Associates (A.R.A.)
A.R.A. has a variety of range test capabilities, including indoor and outdoor ranges up to 1 mile in distance. A.R.A. is a leading manufacturer of a wide variety of antennas, from the extremely broad band to the very narrow band, and from the high power to the very sensitive. It includes a variety of related equipment such as controllers, rotators, preamplifiers, tripods and power supplies. A broad range of antennas are available for airborne, shipboard and ground-based applications. We offer antennas for EMC testing, direction finding, spectrum surveillance systems, telecom, radar, and SATCOM applications and HF antennas.
Cuming Microwave Corp.
Cuming Microwave is a leading worldwide supplier of anechoic chamber materials, and through its subsidiary, Cuming-Lehman Chambers, provides turn-key design, construction, installation and verification of anechoic chambers. Cuming Mirowave also manufactures low loss dielectrics and RF absorbing materials which are used in aerospace, electronics and antenna applications.
ETS-Lindgren was both an exhibitor and show co-host. ETS-Lindgren is a world leading provider of wireless test systems and components including shielded test cells, rectangular and tapered anechoic chambers, single and multi-axis positioners, fixed length dipoles, dual polarized horn antennas, antenna measurement software and systems, GTEM /TEM Cells and more. ETS-Lindgren used the AMTA occasion to ETS-Lindgren to discuss the expansion of its chamber manufacturing capabilities to include acoustic testing environments. Acoustic anechoic, predictable field and reverb/transmission loss solutions feature the same level of expertise and quality customers have come to expect from its EMC, RF/microwave and wireless chambers.
Among the equipment for show, ETS-Lindgren’s exhibition space included the AMS-8050 Antenna Measurement System, a self-contained test lab for making fast, over-the-air performance measurements of small wireless devices and mobile handsets, as well as short range APM. Integrated drawers allow components required for testing to remain with the system. It is incorporated into a movable chassis so the entire system may be transported between different test stations. The AMS 8050 Antenna Measurement System is small in size but big on operational throughput letting users make fully automated 2-D (polar) and 3-D (spherical) antenna pattern measurements, such as : total radiated power (TRP), effective isotropic radiated power (EIRP), total isotropic sensitivity (TIS), effective isotropic sensitivity (EIS), near-horizon partial radiated power (NHPRP) and near-horizon partial isotropic sensitivity (NHPIS).
Elcom Technologies Inc. was among the exhibitors at AMTA showcasing its sophisticated broadband frequency synthesizers and converters ranging from 1 to 40 GHz. Design architectures include products utilizing either "Direct Analog Synthesis" or "Indirect Phase Locked Loop Synthesis" depending on the performance requirements. Great attention is given to achieving the ultimate performance in switching speed, phase noise and spectral purity.
Developer of Magnetic Near Field measurement technologies and product solutions, Emscan Corp. promoted its Antenna Measurement Platform and lead product (LabExpress), which provide extremely accurate and repeatable high-speed characterization of wireless antennas ( embedded structures or stand alone). Their users find the near field and far field measurement results extremely useful to assist in rapidly optimizing embedded designs (single or multi-antenna) and compact phased array solutions. In addition, their Nexus Plus Portfolio of Magnetic Near Field Scanning Systems and Diagnostic Tools enable designers world wide to diagnose and solve EMI and EMC problems in a single design cycle.
EM Software and Systems
EM Software & Systems distributes the comprehensive EM analysis code, FEKO, and offers consultancy services in electromagnetic engineering. FEKO is a full wave, method of moments (MoM)-based computer code for the analysis of electromagnetic problems such as:
EMC, shielding, coupling, antenna design, antenna placement analysis, microstrip antennas, and circuits, striplines, dielectric media, scattering analysis, etc. The newest release of FEKO 5.3., a software suite for the analysis of a wide range of electromagnetic problems, was on display. Applications include EMC analysis, antenna design, microstrip antennas and circuits, dielectric media, scattering analysis, etc. The kernel is comprehensive and has been extended for the analysis of thin dielectric sheets, multiple homogeneous dielectric bodies and planar stratified media.
Herley-CTI Inc. was on-hand to provide information on the broad spectrum of product including Microwave and Millimeter wave Sources, Synthesizers and Integrated Assemblies for Military and Commercial Radar, Communications, Electronic Warfare, Surveillance, Digital Radio, Test and Instrumentation and SatCom applications.
The Howland Co.
The Howland Co., which specializes in providing unique solutions in the area of electromagnetic test and measurement, were demonstrating its areas of expertise including the measurement of antennas, radar cross-section, aircraft nose radomes, cellular phones and wireless LANS. They have also developed expertise in the complimentary technologies of RF shielding and anechoic chamber design.
IAM Systems Inc. a provider of furnish reflectors, feed systems and engineering services to the antenna measurement industry since 2003 also designs and builds positioning systems for antenna feeds and RCS targets. IAM Systems had a space on the exhibition floor where they were showing a slide show of the manufacturing process behind their specialty – a light weight carbon graphite composite reflectors in the rolled edge configuration. The reflectors are extremely lightweight, but rigid and accurate enough to test up to 80 GHz. Company representatives indicated that they have experience building reflectors up to 20 ft. square and are proposing much larger reflectors.
ITT Corp., Radar Systems-Gilfillan Division, a pioneer in the development of Air Traffic Control and Air Defense Radars, offers 60 years of demonstrated leadership in radar technologies and services, staking the claim of being the world's #1 producer of military ATC systems. Their products include the Terminal Airport Surveillance Radar (TASR), to support air traffic controllers, and the GCA-2000 Ground Control Approach (GCA) and Precision Approach Radars (PAR) for air surveillance and landing assistance in extreme conditions. Innovative products and Logistics Support Services, including the largest Far Field Antenna Range Test facility in Southern California, enhance its capabilities. ITT also offer Near Field Antenna Measurement services, Computer Base Training (CBT) solutions and on-line technical support and collaboration to customers using WebCITIS and TRAX.
MI Technologies, a leading supplier of products, systems and services for RF and microwave antenna, radome, and radar cross section (RCS) testing and automotive telematics in near field, far field and compact range configurations was among the exhibitors. MI Technologies' test, measurement and precision motion control products are used in research, development, monitoring and manufacturing processes worldwide. MI Technologies was highlighting its MI-3001 Data Acquisition and Analysis Workstation designed for the acquisition and display of RF and microwave data generated by MI Technologies' or third-party manufacturers' test equipment.
MI Technologies presented its Data Acquisition Analysis and Presentation software for Microsoft Windows operating system and associated peripherals. The general-purpose workstation is compatible with all MI Technologies' test and measurement systems and third-party manufacturers' RF and microwave test and analysis equipment. Technicians using the workstation can perform multi-channel, multi-polarization and multi-frequency signal acquisitions in a single scan. In addition to programming and executing a wide range of microwave tests, the MI-3001 workstation allows operators to create rectangular, polar, isometric and contour data presentations and reports. The system's ASCII data output enables integration into any analysis or graphical application. The workstation makes its data available in a Microsoft Access® relational database format and scripting language to enhance user programming of data acquisition. The software, when combined with any of the MI-2097 Automated Microwave Measurement Systems, will enhance the acquisition and display of data and plots used for testing antennas, components and radomes or for analysis of radar cross-section measurements.
Nearfield Systems Inc. (NSI)
NSI had a large booth at the show including a flight simulator station that was very entertaining for those who gave it a try. The company that has been providing state of the art antenna measurement systems for 19 years was demonstrating the Panther 9000 Series High-Speed Receiver designed for high performance antenna testing. This two-channel system collects multi-port, multi-frequency data at up to 300,000 measurements per second, while freeing the measurement application software from stringent timing requirements. This receiver is capable of high-speed pulsed measurements of < 1 Ìs and includes a front panel LED "Phi" display capable of simultaneously showing amplitude, phase and beam state. The Panther 9200 receiver adds a high resolution LCD display for monitoring real-time data acquisition and receiver performance.
Near-fields also showed off its NSI 2000, which includes a 3-D viewer that can be used to inspect near-field and far-field data in a 3-D dynamic mode that can help you gain insights into your antenna's performance. The following views of planar, cylindrical and spherical data sets show the differences between the scan techniques. Note the amplitude and phase cuts shown vertically and horizontally through the 3-D data are dynamic and allow a multi-dimensional perspective unavailable from a single cut.
Turn-key supplier of antenna & microwave measurement systems, ORBIT/FR has produced and delivered hundreds of products, ranging from positioners and controllers to highly sophisticated measurement systems often based on the challenges introduced by unique customer specifications. ORBIT/FR has been providing Near-Field, Far-Field and Compact Range systems serving market leaders in the Wireless Communications, Aerospace/Defense, Satellite and Automotive industries worldwide. For the Wireless Communications industry in particular, ORBIT/FR has introduced the PowerCell active antenna measurement software for characterization of mobile devices. Being among the pioneers in the antenna measurement field, ORBIT/FR has gained worldwide recognition as a leading manufacturer of antenna measurement systems, positioning hardware, absorber and anechoic chambers, and is challenging tomorrow’s standards.
QuarterBranch Technologies Inc.
QuarterBranch Technologies Inc. got a draw at its booth from attendees looking to get their picture taken with their Mascot – Radarman and to win a Radarman tee-shirt. QuarterBranch Technologies serves the RCS community with its flagship product, RadarMan, a compact, lightweight, 2-18 GHz Pulsed-IF system. Despite its small footprint, RadarMan features most of the capability of its much larger, more costly competitors. RadarMan is adaptable to virtually any required measurement configuration for outdoor ranges, indoor compact ranges, or portable field testing.
Quarterwave manufacturers high performance, low noise traveling wave tube amplifiers (TWTA), delivering excellent signal fidelity with the lowest close to carrier noise in the industry. Frequency coverage from 0.5 to 95 GHz is available in a variety of flexible packaging options. Products include transmitters for: sophisticated synthetic aperture radars, airborne weather research, earth resource imaging, and radar cross measurement programs. Other applications include: electronic warfare threat platform simulators, wireless communications, satellite uplinks, unmanned aerial vehicles and a growing number of EMI/RFI test facilities. The company displayed its 9100 series of High Power Pulsed Microwave Amplifier systems, which provide the maximum in reliability, cost-effectiveness and system growth potential. These systems deliver incomparable pulsed RF performance for operation in benign laboratory or hostile field environments. Microprocessors provide the operator, and or computer, access to monitor TWT conditions, fault latching, and control of power supply and modulator parameters. Model 9100/96306-H65J18 operates at 6.5 to 18 GHz.
Rohde & Schwarz Inc.
Show co-host and exhibitor Rohde & Schwarz Inc. was on hand with an impressive array of demo test station, specifically geared for antenna measurement applications. Signal generators, network analyzers, spectrum analyzers and power meters were among the fast and accurate test equipment that R&S markets and distributes to address the needs of radio communications, test and measurement, mobile radio, broadcasting, radio monitoring and radio location products.
Customers include military and government agencies, developers, manufacturers and network operators in the telecommunications industries, wireless, automotive, avionics and broadcasting companies. The company also provides turnkey test solutions for systems integration. It also offers full maintenance, service, repair and calibration contracts for its products.
Systems Planning Corp.
System Planning Corp. introduced the Cheetah-X to its Cheetah product line of low-cost RCS measurement solutions for short, medium and long range applications. The Cheetah-X is a PNA-based, pulsed-IF instrumentation system, delivering performance and capabilities on par with the most expensive RCS systems available.
Satimo is a pioneer in the field of high speed antenna measurement solutions for both passive (cable-fed) and active (wireless) devices. Satimo’s patented technology employs probe arrays to allow full, volumetric characterization of radiation patterns in a fraction of the time required for conventional measurement systems. Applications include antenna design & optimization, calibration, handset & laptop performance certification, non-destructive testing, and microwave imaging. New flexible products for aerospace test applications are recent additions to the product catalog. Satimo is recognized internationally throughout the industry as providing innovative solutions to complex problems. Sales and support offices are located in US, France, Italy, Hong Kong, Japan and Sweden.
TDK RF Solutions
TDK RF Solutions Inc. highlighted its IS line of electromagnetic absorber material. The IS-080S oblique incident absorber is constructed from carbon loaded, conductive polyethylene foam. This uniquely designed, pyramidal shaped RF absorber has exceptional absorption performance for high oblique incident angle as well as normal incidence. When a full set of 15 pieces is placed on a reflective ground plane between the transmit antenna and the EUT (equipment under test), the IS-080S absorber converts a 3 meter test range semi-anechoic chamber into a facility capable of performing all susceptibility and radiated immunity measurements, in full compliance with IEC 1000-4-3 in the frequency range from 80 MHz to 18 GHz. TDK Corp. offers a single vendor solution for all of your testing needs. TDK can offer support on a board level with electronic components, as well as the design, manufacture and installation of integrated test systems, antenna measurement, anechoic and shielded test chambers, automated test software and test and metrology antennas. TDK can also help with regulatory testing and certification to help bring your product to market. TDK offers more information about your Total EMC Solutions at EMCsolutions@tdktca.com.