UTAC Tour Features Live Demonstration of EMC Site Validation Method from 18 GHz to 40 GHz

Novel Test Method Under Consideration for ANSC C63® and CISPR Standards

Cedar Park, Texas – August 7, 2025 – ETS-Lindgren, the global leader in advanced Electromagnetic Compatibility (EMC) Solutions, is pleased to lend its expertise to a facility tour of UTAC, the global leader in automotive testing. The tour will be held on Friday, September 5, 2025, from 9:30 am to 4:00 pm (UTC+01:00) as part of the EMC Europe 2025 conference in Paris, France. Tour attendees will discover the historic Linas-Montlhéry Autodrome site and explore UTAC’s state-of-the-art facilities. This immersive experience will take visitors through key services, including acoustics (with indoor noise measurements), the EMC department (with emission/radio and reverberation chambers), and live demonstrations (of high-voltage tests such as harmonics and flickers).

Guests will also see the impressive semi-anechoic chamber, designed for EMC testing of heavy vehicles, showcasing cutting-edge technologies developed in partnership with ETS-Lindgren. As a bonus, tour participants will learn about the latest EMC site validation measurements from 18 GHz to 40 GHz using advanced antenna measurement techniques currently under consideration in ANSC C63 and CISPR standards. A live demonstration will show the novel approach that addresses inherent challenges in traditional SVSWR methods and provides a more comprehensive evaluation of the EMC chamber quiet zone — which can be measured more easily and efficiently, without any special positioning fixtures. The demonstration will show an entire measurement process including post-processing, which can be performed in real time.

The tour concludes with a friendly lunch and a visit to the ADAS track (TECMO), offering a first-hand look at advanced testing capabilities.

“We scheduled the live demo at UTAC as part of the facility tour to educate EMC engineers about the challenges of testing at frequencies above 18 GHz, which have been conducted up to 231 GHz without a standardized validation method,” said Janet O’Neil, Customer Relations Manager with ETS-Lindgren. “Historically, sites validated below 18 GHz were assumed to be acceptable for higher frequencies, but this assumption lacked the support of data. With the introduction of transmitters operating at 25 GHz, 38 GHz, and higher frequencies, accurate site validation has become increasingly important. ANSC C63 and CISPR are working on developing site validation methods for frequencies from 18 GHz to 40 GHz to improve measurement accuracy and consistency. The ANSI C63 standard includes references to both anechoic and reverberation chambers.”

The CISPR and ANSC C63 method under consideration for EMC site validation measurements from 18 GHz to 40 GHz introduces a novel approach integrating Cylindrical Mode Filtered Site Voltage Standing Wave Ratio (CMF SVSWR). This method addresses inherent challenges in traditional SVSWR methods, such as inconsistency and slow data acquisition. CMF SVSWR utilizes circular path measurements and mode domain post-processing to discern antenna and chamber reflections.

Zhong Chen, Chief Engineer with ETS-Lindgren, Vice-Chair of ANSC C63, and member of CISPR A, has long been an active technical contributor to these standards’ development organizations. He explained the plans for the CMF SVSWR demonstration in the UTAC chamber: “We’ll start by placing the transmit antenna — typically a low gain omni-directional antenna — at the edge of the turntable and performing a single cut vector pattern measurement. The vector S21 as a function of turntable angle at each frequency is processed and transformed to the spectrum domain, where a filter can be applied to mathematically remove the chamber effects. The SVSWR is derived by comparing the original pattern in the chamber to the ‘clean’ filtered pattern. The demonstration will show an entire measurement process, including post-processing, which can be performed in real time.”

“I’ve been fortunate to accompany my colleague Mr. Chen to several EMC test labs around the world to see his presentation on and demonstration of this novel method. It’s been rewarding to witness the appreciation attendees have for this new measurement technique that is more robust than the current SVSWR method,” said Ms. O’Neil. “In addition, it takes a fraction of the time to evaluate a test site with this method, and special positioning fixtures are not required — attendees especially valued the efficiency and convenience of the CMF SVSWR method!”

In addition to co-sponsoring the Technical Tour, ETS-Lindgren is proud to support the EMC Europe 2025 conference as a Silver Sponsor and an exhibitor. So, while tickets for the UTAC tour are no longer available, those interested in learning more about the CMF SVSWR method for EMC test site evaluation from 18 GHz to 40 GHz can visit ETS-Lindgren’s experts in Booth #39 at the EMC Europe 2025 conference in Paris, France, from September 1 to 5, as well as in Booth #401 at the 2025 IEEE International Symposium on Electromagnetic Compatibility, Signal and Power Integrity in Raleigh, North Carolina, from August 18 to 22. 

Booth visitors will learn about ETS-Lindgren’s EMC Test and Measurement Systems at both conferences including the popular EMC Antennas and Field Probes, which will be on display. Guests will also be able to peruse brochures covering FACT™ (Free-Space Anechoic Chamber Test-Site) for ten, five, and three meter measurements as well as FACT 25, ideal for CISPR 25 compliance testing.

For more information on ETS-Lindgren products and services, contact us at + 512-531- 6400 or email info@ets-lindgren.com. To schedule a CMF SVSWR demonstration at your test lab, or for more information on participating in the ANSC C63 and CISPR working groups developing test site evaluation methods from 18 GHz to 40 GHz, please contact Ms. O’Neil at janet.oneil@ets-lindgren.com. View a case study on the UTAC chamber here.

ETS-Lindgren | Committed to a Smarter, More Connected Future.

About ETS-Lindgren

ETS-Lindgren is an international manufacturer of components and systems that measure, shield, and control electromagnetic and acoustic energy. The company’s products are used for electromagnetic compatibility (EMC), microwave, wireless, and magnetic resonance imaging (MRI) testing, electromagnetic field (EMF) measurement, radio frequency (RF) personal safety monitoring, and control of acoustic environments.

Headquartered in Cedar Park, Texas, ETS-Lindgren has manufacturing facilities in Europe, Asia, and North America. The company is a wholly owned subsidiary of ESCO Technologies, a leading supplier of engineered products for growing industrial and commercial markets. ESCO is a New York Stock Exchange listed company (symbol ESE) with headquarters in St. Louis, Missouri. Additional information about ETS-Lindgren is available at www.ets-lindgren.com. Follow ETS-Lindgren on Facebook, Instagram, LinkedIn, X, and YouTube. Additional information about ESCO and its subsidiaries is available at www.escotechnologies.com.

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CONTACT:

Omar Webb

Event & Content Specialist

ETS-Lindgren

Office: +1 (512) 531-2672

omar.webb@ets-lindgren.com