Upcoming ANSC C63® Meeting Addresses the NEW ANSI C63.25 Series Standards
Industry
Standards Committee Addresses Novel Technique for EMC Test Site Validation From
18 GHz to 40 GHz
CEDAR
PARK, Texas, May 2, 2024 – Active technical contributors to the American
National Standards Committee (ANSC) C63 (Electromagnetic Compatibility) will meet
in person at UL Solutions in Raleigh, North Carolina, the week of May 13, 2024. The committee convenes regularly both
virtually and in person to address the standards maintained and developed by
ANSC C63, including the seminal ANSI C63.4 “Methods of Measurement of
Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in
the Range of 9 kHz to 40 GHz,” as well as the new ANSI C63.25 series of
standards for EMC test site validation.
The series includes C63.25.1 “Validation Methods for Radiated Emission
Test Sites, 1 GHz to 18 GHz,” which includes the application of Time Domain
(TD) and Site Voltage Standing Wave Ratio (SVSWR); new procedures for site
validation measurements in C63.25.2 (30 MHz to 1 GHz); and a novel technique using
Cylindrical Mode Filtered SVSWR (CMF SVSWR) measurements for test site
validation and antenna calibration from 18 GHz to 40 GHz included in the draft
standard C63.25.3.
ANSI
C63.25.3 is particularly significant since the standard provides the latest
test methodology for validating performance of an EMC test site in the
frequency range of 18 GHz to 40 GHz, the natural evolution of measurements for the
C63.25 standard series since the publication of the standards ANSI C63.25.1 and
C63.25.2. “This is a new frequency range
to explore for EMC test sites. A
standard in this frequency range currently does not exist, yet industry demand
for testing products at higher frequencies is increasing,” said Zhong Chen,
Chief Engineer with ETS-Lindgren and Vice Chair of the C63 Committee. “C63 is addressing this industry-driven
challenge with the new draft standard C63.25.3.
Our goal is to provide a site validation measurement technique that is
relatively easy and fast to perform and, most importantly, yields results that
are reliable and repeatable. Time is
money with commercial test and internal R&D labs, so if the new technique
expedites the site validation measurement process, then test labs have more
time for customers and staff.”
A
hallmark of the draft C63.25.3 standard is the new capability to provide
greater information beyond the basic chamber reflection levels. “The current SVSWR standard method under-samples
data collection and offers no information on the coverage of the receive
antenna; only at a few positions within the quiet zone are evaluated. In contrast, the CMF SVSWR method specified
in C63.25.3 provides a comprehensive view of the chamber reflection levels as
well as the quality of the entire quiet zone, all with a faster test time
compared to the traditional SVSWR method,” offered Mr. Chen.
In
light of the significance of the draft C63.25.3 standard in expediting EMC test
site validation time as well as offering greater performance diagnostics, Mr.
Chen and Yibo Wang, RF Engineer with ETS-Lindgren, have produced a video
demonstration of the CMF SVSWR method, now available here, to educate test lab operators and
managers on this novel technique.
Viewers will learn how the CMF SVSWR is measured by placing the transmit
antenna (typically a low-gain omni-directional antenna) at the edge of an EMC
test chamber turntable and performing a single-cut vector-pattern
measurement. A comprehensive evaluation
of an EMC chamber quiet zone is then readily measured without any special
positioning fixtures. The video shows the
entire measurement process, including the post-processing, which can be
performed in real time.
For
more information on ANSC C63, click here. If you are interested in attending the C63
meetings from May 13 to 17, 2024, at UL Solutions as an observer, please
contact Janet O’Neil, Customer Relations Manager and Secretary of the C63
Subcommittee 1 (Techniques and Development), at +1
(512) 531-2676 or janet.oneil@ets-lindgren.com.
You can find the C63 meeting agenda and
standards to be discussed each day here.
As the global industry leader in the components and systems used for
EMC and wireless testing, ETS-Lindgren supports the activity of ANSC C63 to
share best practices and advance technology for the industry. ETS-Lindgren’s customers can count on
continuous support on all products — from essential components such as Antennas
and Probes
to complete Test Systems such as combination Antenna and EMC Test Chambers — through its
team of 800+ employees and six manufacturing sites worldwide. For decades, customers have relied on
ETS-Lindgren’s expertise gained by more than 50,000 global RF shielded
enclosure installations.
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 North America, Europe, and
Asia. 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, Twitter/X, and YouTube. Additional information about ESCO and its
subsidiaries is available at www.escotechnologies.com.
###
CONTACT:
Omar
Webb
Content
Coordinator
ETS-Lindgren
Office: +1
(512) 531-2672