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This section provides an overview for reverberation chambers as well as their applications and principles. Also, please take a look at the list of 9 reverberation chamber manufacturers and their company rankings. Here are the top-ranked reverberation chamber companies as of April, 2025: 1.IAC Acoustics, 2.KAPOLNEK ACOUSTICS INDIA, 3.AMETEK CTS.
Table of Contents
A reverberation chamber is a specialized testing device comprising an electromagnetic shielding room (shield room) and an electromagnetic stirring device (Stala). It's designed to create multiple reflections of electromagnetic waves within its metal walls and varies these reflections through the rotation of the Stala's blades. This chamber effectively simulates an electromagnetic environment akin to urban areas, making it ideal for electromagnetic compatibility (EMC) testing of modern systems like 4G, 5G, autonomous driving, and connected technologies.
Reverberation chambers are primarily used for EMC testing. This includes radiated emission tests, which assess the interference waves emitted by electronic devices and systems, and radiated immunity tests, which evaluate a device's resistance to external electromagnetic interference. They are essential for ensuring the reliability of vehicle network systems and communication technologies.
The shield room in a reverberation chamber generates multiple modes or resonance phenomena, significantly influencing the electric field distribution. This setup, akin to acoustic properties in a music room, shows that the materials of the shield room walls are crucial for the internal electric field. The Stala's role is to create a statistically uniform electromagnetic field, beneficial for radiated immunity tests, as it uniformly irradiates the device under test (DUT) with an electric field, regardless of its position or orientation. In radiated emission tests, especially at higher frequencies, the chamber's resonance phenomena and the Stala's rotation efficiently capture maximum radiated noise, reducing measurement time significantly compared to traditional methods.
Stirring methods in reverberation chambers include rotating blades, moving wall surfaces, and vibrating flexible mesh-like tent structures on the walls. These methods are vital for generating a uniform electromagnetic field.
The walls of the shield room in a reverberation chamber are typically made from materials with high conductivity, like copper (Cu) and aluminum (Al). In some cases, steel plates coated with zinc or aluminum are used, particularly effective in the MHz range due to their permeability.
The electromagnetic field's statistical uniformity improves with more rotation steps of the Stala and increased measurement points within the working volume. Understanding this concept is crucial for maximizing the reverberation chamber's benefits, which differs from deterministic concepts of uniform electromagnetic fields found in open sites or anechoic chambers.
*Including some distributors, etc.
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IAC Acoustics, established in 1949 and headquartered in Illinois, United States, is a manufacturer and supplier specializing in metal noise control solutions. The company’s portfolio caters to industrial, architectural, and medical applications. Their industrial solutions include in-plant and outdoor enclosures, noise barriers, and anechoic chambers. Architectural solutions include secure facilities, acoustical doors, windows, and music practice rooms. Their medical solutions include audiology booths and test chambers. IAC Acoustics provides noise control products and acoustic systems locally and internationally to clients across various industries.
Kapolnek Acoustics India, established in 2012 and headquartered in Haryana, India, is a manufacturer of noise control equipment and vibration control materials. The company offers attenuation doors with HF screening, noise protection enclosures for production machines, and acoustic doors and windows. Its products include multipurpose acoustic test stands, vibration control materials and equipment, and reverberation rooms and chambers. These products serve cinema halls, music studios, and audition halls, ensuring optimal sound and vibration control.
ETS-Lindgren and ESCO Technologies Company, established in 1995 and headquartered in Cedar Park, Texas, United States, is a wireless, EMC, and acoustic test and measurement equipment manufacturer and supplier. The company's numerous products include RF power amplifiers, 5G antenna measurement chamber systems, and precision multi-axis positioners (MAPS). It also provides various monitoring and testing software suites, tabletop test enclosures, and various testing antennas. These products are used in testing systems for electromagnetic interference and shielding solutions for medical MRI scanners, among others.
Ametek CTS is a manufacturer of RF power amplifiers and EMC compliance testing products that was established in Reinach, Switzerland, in 2017 following the merger of the Ametek, Inc. brand EM Test, Teseq, IFI and Milmega. The company offers electrostatic discharge and ring wave testers for consumer electronics, solid state and immunity testing systems for the aerospace industry, and electrical disturbance and flicker testers for the automotive industry. It also offers testers and amplifiers for the medical and defense sectors. The company is ISO 17025-certified and operates internationally, with notable clients such as Raytheon and Honda.
Siepel, founded in France in 1950, is a manufacturer and supplier of research data protection measurements and electromagnetic solutions. It specializes in microwave absorbers as well as shielded rooms designed to protect against electromagnetic interference, anechoic chambers designed to absorb reflections of sound or electromagnetic waves, and reverberation chambers designed to simulate the effects of a large space of electromagnetic waves. It also provides standards and technical recommendations for its products and services, as well as cybersecurity solutions for the mobility sector.
Frankonia specialzes in equipment used to test for radio wave emissions for antennas, the automotive industry and the military. Frankonia makes equipment used to create a chamber for the tests to be carried out such as wall panals and chambers. They also provide the equipment required for the testing. Founded in 1987 Frankonia is the industry leader in electromagnetic compatibility solutions. Based in Bavaria, Germany Frankonia offer a wide range of services from consulting, construction and manufacturing. Frankonia have a worldwide customer base with their unique products. They tailor to the individual needs to each of their customers.
Ranking as of April 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | IAC Acoustics |
20.0%
|
| 2 | KAPOLNEK ACOUSTICS INDIA |
16.0%
|
| 3 | AMETEK CTS |
12.0%
|
| 4 | ETS-Lindgren |
12.0%
|
| 5 | Frankonia Germany EMC Solutions GmbH |
12.0%
|
| 6 | CMZ-CONSULTING |
8.0%
|
| 7 | Ecotone Systems Pvt. Ltd. |
8.0%
|
| 8 | Siepel |
8.0%
|
| 9 | V Technical Textiles, Inc. |
4.0%
|
Derivation Method
The ranking is calculated based on the click share within the reverberation chamber page as of April 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
1 | 20.0% |
|
India
|
1 | 20.0% |
|
Switzerland
|
1 | 20.0% |
|
France
|
1 | 20.0% |
|
Germany
|
1 | 20.0% |
75 products found
75 products
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This is a simple radio anechoic chamber that prevents radio wave reflection within the shield room by uniformly pasting radio wave absorbers (ferri...
TS S Japan Co., Ltd.
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■Strong point ・Cost-effective, high-performance solution with 3.0m measuring distance and QZ up to 3.0m ・Fully compliant with EMI/EMS ・Tradition...
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■Strong point ・Compact chamber solution for automotive component testing ・Fully compliant with EMI/EMS ・Upgradable for E-Drive (road machine, EM...
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■Strong point ・Test site for table-top and floor-standing EUTs (with height scan) ・Fully compliant with EMI/EMS ・Cost-effective solution for fre...
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■Strong point ・Efficient high-performance solution for measuring distances of 3.0m and 5.0m and QZ up to Φ3.0m ・Fully compliant with EMI/EMS - Li...
TS S Japan Co., Ltd.
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This is an electromagnetic shield room equipped with a stirrer that scatters radio waves. It is possible to test the DUT in a state similar to the ...
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■Strong point ・Testing of components and systems ・Recommended solution for testing electric motors only ・Connection to motor adapter and measure...
TS S Japan Co., Ltd.
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This is an electromagnetic shield room equipped with a stirrer that scatters radio waves. It is possible to test the DUT in a state similar to the ...
TS S Japan Co., Ltd.
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■Strong point ・Fully compliant with CISPR25 ・Testing systems containing motors, components or batteries -Movable, flexible and adjustable to all ...
TS S Japan Co., Ltd.
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This is an electromagnetic shield room equipped with a stirrer that scatters radio waves. It is possible to test the DUT in a state similar to the ...
TS S Japan Co., Ltd.
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■Strong point ・Cost-effective, high-performance solution with 3.0m measuring distance and QZ from ø1.2m up to 2.0m ・Fully compliant with EMI/EMS ...
TS S Japan Co., Ltd.
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This is an electromagnetic shield room equipped with a stirrer that scatters radio waves. It is possible to test the DUT in a state similar to the ...
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■Strong point ・Compact chamber design for military applications ・Fully compliant with EMI/EMS ・Excellent performance with Frankonia's original F...
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■Strong point - Highly customizable solution for all types of EMC testing ・Fully compliant with EMI/EMS ・Excellent performance with Frankonia's o...
TS S Japan Co., Ltd.
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■Strong point Compact chamber solution for component testing according to CISPR 25 and MIL-STD 461/DO-160 ・EMS measurement fully compliant with IE...
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■Strong point ・Fully compliant with EMI/EMS ・Polygonal design saves space and is compact ・Excellent performance with Frankonia's original Franko...
TS S Japan Co., Ltd.
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■Strong point ・Table top EUT test site ・Fully compliant with EMI/EMS ・Cost-effective solution for free space measurements ・Excellent performanc...
TS S Japan Co., Ltd.
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■Strong point - Highly customizable solution for all types of EMC testing ・Fully compliant with EMI/EMS ・Excellent performance with Frankonia's o...
TS S Japan Co., Ltd.
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■Strong point ・Compact chamber solution for automotive components ・Alternative solution for GTEM cells ・Turnkey solution ■Product information T...
TS S Japan Co., Ltd.
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■Strong point ・High-performance solution that supports measurement distances of 3.0m and 5.0m and QZ up to Φ4.0m ・Large turntable or mobile dynam...
TS S Japan Co., Ltd.
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■Strong point ・CISPR16-1-4 EMI pre-measurement ・EMS measurement fully compliant with IEC/EN 61000-4-3 A cost-effective solution for EMS measureme...
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■Strong point ・High-performance solution that supports measurement distances of 3.0m and 5.0m and QZ up to Φ3.0m ・Large turntable can be installe...
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■Strong point ・Can be converted from SAC (5-sided anechoic chamber) to FAC (6-sided anechoic chamber) test site ・Cost-effective, high-performance...
TS S Japan Co., Ltd.
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■Strong point ・Test compliant with ECE R10.5 using dynamometer ・Fully compliant with EMI/EMS - Available with Frankosorb® long pyramid or hybrid ...
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■Product information RVC (Reverberation Chamber) is used in reverberation test methods based on IEC 61000-4-21, MIL-STD-461G, DO-160D-20, and ISO 1...
TS S Japan Co., Ltd.
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■Strong point ・Solutions for auto parts, vehicles, and commercial testing ・Fully compliant with EMI/EMS - Compatible with either mobile or fixed ...
