Data Center Shielding: The Risk Software Cannot Cover
The electromagnetic signals servers emit are a physical security gap. The role of shielding in data centers.
3 min readJuly 22, 2026
Frequency and Absorbers
5G has pushed frequencies higher. The absorber material must reduce reflections enough at these frequencies.
Low frequencies, on the other hand, need larger absorbers and a larger chamber, so the lowest frequency to be measured sets the chamber size.
Measurement System
The antenna mast, turntable and measurement software should be planned together with the chamber. Cable penetrations and positioners must not degrade the chamber's performance.
CTIA and 3GPP methods are taken into account for over-the-air performance testing of wireless devices.
Flexibility for the Future
The chamber's operating range can be extended by replacing or adding absorber material.
When investing, you should also account for the frequencies you will need to measure in the future.
Choosing the Measurement Method
The right chamber for 5G measurements depends on the method used. Direct far-field, compact range and near-field methods each need different chamber sizes and equipment.
We explained the extra challenges of FR2 bands in our mmWave measurement challenges article. For chamber options, see our antenna measurement chamber page.
Frequently Asked Questions
Which chamber is enough for 5G FR1?
A standard fully anechoic chamber is enough for most FR1 measurements.
Can an antenna chamber also be used for EMC tests?
Some emission tests can be done, but most EMC standards require a semi-anechoic chamber.
Can the chamber be adapted to future bands?
Its operating range can be extended by changing absorbers and the measurement system.
Related Solutions
Let's Find the Right Solution for Your Project
Get a QuoteYour free site survey and quote will be ready within 24 hours.