Evaluation Engineering - 22

EMC TEST

emulators. "These solutions are capable
of testing EMC for wireless technologies,
including unlicensed and licensed cellular
technologies, 4G/LTE, 5G New Radio (5G
NR), millimeter-wave (mmWave), Wi-Fi,
and Bluetooth."
The MT8000A and MT8221C can help
test devices and UE employing 5G NR,
4G/LTE, and legacy wireless technologies, Yasami said, adding, "In addition
to ensuring compliance in accordance
with FCC rule parts, Anritsu's solutions
simplify test setup and execution and
provide reliable test results."
Yasami said Anritsu solutions enable
pre- and full-compliance test and certification for products including mobile
phones, handsets, and portable devices.
"Our platform provides the capability
to ensure these products are compliant
with FCC regulations, as well as a variety of other international standards and
regulatory bodies."
According to Tobias Gross, product
manager for EMI test receivers at Rohde
& Schwarz, the company has a comprehensive portfolio of EMC T&M equipment
that ranges from individual devices to
custom turnkey systems. "For tracking
down interference signals when developing electronic devices, Rohde & Schwarz

Rohde & Schwarz ESW high-end test receiver.

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offers solutions based on spectrum analyzers and test receivers with measurement software for pre-compliance and
certification measurements," he said.
Gross said they've released a turnkey
solution for automatically measuring radiated spurious emissions from 5G components in both frequency ranges FR1 and
FR2. "For this solution, the R&S ELEKTRA
EMC test software has been upgraded with
measurement and calibration routines
for 5G," he said. "In addition, the new fast
Time Domain Scan (fast TDS) for the R&S
ESW high-end test receiver is one of our
highlights in EMC testing. Thanks to the
doubled scan bandwidth, the measurement speed is nearly twice as fast as with
a conventional time-domain scan. This
enables previously unattainable fast measurement times for time-consuming tests
with a quasi-peak detector." He added that
fast TDS is free with the latest firmware
version V1.70 for the R&S ESW.
"And last but not least, we have new
EMC test solutions specifically for users
in the automotive industry: the fastest
CISPR-25 certification with fast TDS,
a robust and compact BCI test system,
and R&S AdVISE version 5, which keeps
a close eye even on vibrating display elements during EMS tests," he said.

According to Gross, a key customer requirement is for time-saving measuring
routines. "That is why we have developed
the fast TDS," he said. "In addition, we
have a new option for accelerating product tests on microwave ovens. Typically,
test engineers use the log AV method according to standard CISPR 11. With the
latest revision of the standard, the new
method Multi CISPR APD is applicable
as an alternative. This method not only
reduces the overall testing time significantly, but also enables a detailed insight
in the emission's characteristics."
Gross added that the R&S ESW-K58
Multi CISPR APD measurement option
for the R&S ESW test receiver simultaneously displays the signal amplitude
probability distribution (APD) of up to 67
channels within a specified timeframe.
"The option offers numerous analysis and
display features, including a 3D view," he
said. "When the method is used in line
with the standard for signals with 1 MHz
bandwidth, up to 20 channels can be
measured simultaneously. APD analysis
precisely shows the effects of interference
on digitally modulated wireless signals
(WLAN, cellular or Bluetooth), and in
the future it will also be applied to other
product standards."
Gauss Instruments provides products
for full- and pre-compliance EMI testing
as well as radiocommunication measurements and 5G measurements, according
to Dr. Stephan Braun, CTO. For example,
the company offers EMI64k automation
software and the TDEMI ULTRA, which
enable automated communication and
EMI measurements with 685-MHz realtime bandwidth and real-time scanning
between DC and 40 GHz (expandable with
external mixers in the THz range).
"We serve automotive, industrial, consumer, communication, medical, avionic
and military testing," Braun said. The
products cover the CISPR 16-1-1, MIL 461,
and DO 160 standards as well as ANSI,
FCC, and many other national and international standards.
"With the introduction of the real-time
FFT-based receiver in CISPR, ANSI, and
MIL461G, customers are looking at solutions that fulfill these standards with
large real-time bandwidth," said Braun,

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Evaluation Engineering

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