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This section provides an overview for microwave absorbers as well as their applications and principles. Also, please take a look at the list of 14 microwave absorber manufacturers and their company rankings. Here are the top-ranked microwave absorber companies as of December, 2024: 1.E-SONG EMC Co., Ltd., 2.Cuming Microwave Corporation, 3.KEMET.
Table of Contents
Radar absorbent material (RAM) is a material that absorbs incident radio waves and suppresses their reflection. It is also called a radio wave-absorbing material. The energy of incident radio waves is converted into heat energy and consumed.
Several types of Microwave Absorbers have different principles of absorbing radio waves depending on the material and shape. The frequency band that can be absorbed differs depending on the type. Therefore, it is necessary to select a Microwave Absorber that matches the application and design it appropriately.
The main applications of Microwave Absorbers include noise suppression for electronic devices such as communication equipment and home appliances, anti-reflection for ETC and radar, and evaluation facilities such as anechoic chambers. Microwave Absorbers with characteristics suited to each application are used.
For electronic equipment, a sheet type is used that can shield against specific frequencies emitted by the electronic equipment and can be incorporated into the electronic equipment. On the other hand, for evaluation facilities such as anechoic chambers, Microwave Absorbers in a three-dimensional pyramid shape are used, which have absorption characteristics over a wide frequency band.
There are several types of Microwave Absorbers depending on the principle of absorbing radio waves, and the three main types are resistive, inductive, and magnetic.
The resistive type absorbs the energy of radio waves by converting the induced current generated by the incident of radio waves on the conductor into heat energy by consuming it due to the conductor's own resistance.
The dielectric type uses the resistance component of the carbon particles themselves and the capacitance component between the carbon particles by mixing carbon particles with a dielectric such as foamed polyethylene or rubber. When the incident radio wave is low frequency, almost no electric current is generated. However, as the frequency increases, the impedance of the capacitance component decreases, and an electric current flows. The higher the frequency, the lower the impedance of the capacitive element. The higher the frequency, the more current flows, consumed by the resistor and converted into heat energy to absorb the radio wave energy.
Dielectric types are available in pyramid or sheet forms, depending on their shape. The pyramid type can be designed to absorb a wide range of frequencies because the frequency band to be absorbed is determined not only by the material mixed in but also by its shape.
The magnetic type is made of ferrite or other magnetic materials molded into tile-like shapes, which absorb radio wave energy through magnetic loss. The magnetic type can provide absorption characteristics in the low-frequency band compared to the dielectric type. For this reason, Microwave Absorbers have a wide frequency range by combining dielectric and magnetic types.
Other absorbers have a phase difference of 180 degrees concerning the incident wave to cancel out the reflected wave.
*Including some distributors, etc.
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Cuming Microwave Corporation is a supplier and manufacturer of standard and custom electromagnetic absorbers. It was founded in 1980 and is located in Avon, Massachusetts. They offer microwave absorbers, radar absorbers, dielectric materials, anechoic chambers, and EMC chambers for the defense, electronic, telecom, medical, and automotive industries. Their products are used to reduce reflections, minimize interference, enhance signal quality, and create controlled electromagnetic environments for testing and measurement purposes. They provide a full-service approach, from engineering to manufacturing, installation, and maintenance of their products, while adhering to ISO 9001:2015 industry standards.
KEMET has a portfolio of over 1,600 patents serving the automotive, aerospace, industrial, telecommunications, computing, consumer, and medical devices. KEMETs devices provide filtering, sensing, energy storage, power conversion, and haptic actuator technology. Among these devices are capacitors, electromagnetic compatibility (EMC) components, resistors, circuit protection devices, inductors, sensors, Piezoelectric devices, release, transformers, and engineering kits.
Microwave Vision Group (MVG), established in 1986, is a manufacturer with its corporate headquarters located in Paris, France, specializing in technologies that enable the visualization of electromagnetic waves. The company’s offerings include antennas and antenna measurement systems. It also provides anechoic chambers, modular shielding, as well as precision cut and coated absorbers under the SmartShield brand, tailored for antenna measurement, as well as radio frequency (RF) and electromagnetic pulse (EMP) testing. Additionally, the company offers hyperloss absorbers through its subsidiary, Advanced ElectroMagnetics, Inc. (AEMI). The company serves various industries including aerospace, automotive, consumer electronics, and telecommunications, along with academic and research institutions.
Sekisui Polymatech Co., Ltd., established in 1947 and based in Saitama, Japan, is a plastics manufacturer of thermal gap filler materials. The company manufactures the following products: thermal-conductive sheets, thermal management greases, EMI solutions, connectors, input device accessors, waterproof and complex molding solutions and damping solutions for shock and vibration control. These products are used in cellphones, drones, and automobiles. Sekisui Polymatech has sites in China, Thailand, Japan, USA, Indonesia, and Netherlands for worldwide distribution.
E-SONG EMC Co., Ltd. is a manufacturer EMI shielded & absorbed products and thermal interface products, founded in 1991 and headquartered in South Korea. The company provide ingenious products and services that ensure seamless electronic interactions, minimizing interference and enhancing performance. E-SONG EMC., Ltd expertise spans across industries which offers tailored EMC test, consult, and design services. They are indebted to excellence; they empower clients with dependable solutions that meet regulatory standards and optimize operational efficiency.
Toda Kogyo, founded in Japan, in 1833 is a manufacturer of iron oxide. The company's product portfolio includes iron oxide pigments, custom formulations and blends of iron oxide pigments to meet specific color requirements, micronized iron oxide products and high-purity iron oxide compounds for specialized applications in industries such as electronics, ceramics, and catalyst production.The company serves markets including Plastics and Polymers, Inks and Toners, Consumer Goods, Industrial Manufacturing and Construction and Building.
Dexerials Corporation is a Japanese manufacturer and supplier of electronic materials and components for a wide range of industries, including automotive, consumer electronics, and telecommunications. Established in 2012 as a result of a merger between Sony Chemical & Information Device Corporation and Toshiba Ceramics Co., Ltd. The company offers products such as adhesives, coatings, films, tapes, and thermal management materials, among others. One of their primary products is the Dexerials thermal management material, which is a highly efficient solution for thermal management in electronic devices. It is designed to dissipate heat generated by electronic components.
Microwave Absorbers Inc., founded in 2006 is a manufacturer of electromagnetic, RFID and microwave products based in Tokyo, Japan. Their products are Microwave Absorber Sheet, Microwave Broad Absorber Panel, Millimeter wave Broad Absorber Panel, Electromagnetic Wave Shield Cloth, Lightweight Shield Room and Anechoic Chamber and UHF-RFID Absorber Panel. The company has been a co-R&D in many institutes across Japan and participated in exhibits in America. They also have a local corporation in Hong Kong and received the Certification of ISO9001-2008 in 2014.
Murata Manufacturing Co., Ltd. (Murata Manufacturing) was founded in 1944 and is headquartered in Nagaokakyo, Japan. Murata Manufacturing designs, manufactures, and sells ceramic-based passive electronic components and solutions globally. The company operates through components, modules, and others segments, serving communications, mobility, industrial, healthcare, and personal electronics customers. They company's product offerings include noise suppression products, quartz devices,RFID devices, phase shifters, and wireless connectivity platforms. Services such as webinars and video library are also available for existing and potential customers alike.
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.
Kitagawa Rubber Industries Co., Ltd., established in 1963 with headquarters in Japan, is a manufacturer and distributor of electronic components and equipment. The company’s products include EMC noise suppression components, thermal pad components, a plastic component series for holding PCBs, and plastic component ties. Kitagawa Rubber Industries is also involved in the technologies and services fields, providing components for the new energy products, biotechnology, industrial robots, semiconductors, and medical markets. The company has international offices located in the USA and China and also maintains ISO 9001 certification.
Microwave Factory Co., Ltd. established on February 25, 2003, and based in Japan, is a manufacturer and supplier of Shielded Rooms and Boxes. The company's product range includes the ESD Visualizer, Anechoic Chamber, Radiowave Absorbers, an Antenna Measurement System, and an OTA Measurement System. These products are designed for tasks such as electromagnetic wave measurement, 5G communications testing, microwave assessments, and antenna measurements. Key industries benefiting from these products are Automotive, Aerospace and Defense, Electronics, and Telecommunications. Its services include automatic measurement software solutions, production of positioners like turntables, and supply of accessories for electromagnetic wave testing.
T-Global Technology Co., Ltd. is a supplier of thermal management products established in 2003 and based in Taoyuan, Taiwan. Its product portfolio includes thermal pads, tape, putty, and grease. It also supplies vapor chambers, heat sinks, thermoelectric cooling chips, and heat pipes. The company is in compliance with RoHS and REACH regulations and has obtained ISO 9001:2015, ISO 14001, and IATF16949 certifications. Its products are utilized for electronics, automotive, manufacturing, energy, and power industries in China, the USA, and the UK. It has partnered with several companies, including Tesla, Siemens, Panasonic, Bosch, and Asus.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | E-SONG EMC Co., Ltd. |
18.2%
|
| 2 | Cuming Microwave Corporation |
12.3%
|
| 3 | Murata Manufacturing Co., Ltd. |
8.6%
|
| 4 | KEMET |
8.6%
|
| 5 | MGV |
8.3%
|
| 6 | Microwave Absorbers Inc. |
8.0%
|
| 7 | T-Global Technology Co.,Ltd. |
7.1%
|
| 8 | SEKISUI POLYMATECH CO., LTD. |
6.8%
|
| 9 | KITAGAWA INDUSTRIES CO., LTD. |
6.2%
|
| 10 | Toda Kogyo |
5.6%
|
Derivation Method
The ranking is calculated based on the click share within the microwave absorber page as of December 2024. 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 (%) |
|---|---|---|
|
Japan
|
7 | 53.8% |
|
United States of America
|
2 | 15.4% |
|
United Kingdom
|
1 | 7.7% |
|
Republic of Korea
|
1 | 7.7% |
|
France
|
1 | 7.7% |
|
Taiwan
|
1 | 7.7% |
59 products found
59 products
Wisera Co., Ltd.
210+ people viewing
Last viewed: 2 hours ago
Compared to conventional resin or rubber products, it has superior heat resistance and abrasion resistance, and can be used as a radio wave absorbe...
Access Co., Ltd.
60+ people viewing
Last viewed: 14 hours ago
The ``HA Series'' high power resistant radio wave absorber was developed as a radio wave absorber for high power applications such as radar waves a...
SHIELD TECH INDUSTRY LIMITED.
20+ people viewing
Last viewed: 1 day ago
■Summary E&C VHP is an internally filled (not hollow), pyramid-shaped, carbon-filled urethane foam absorber. The main uses include building an anec...
Access Co., Ltd.
80+ people viewing
Last viewed: 6 minutes ago
The sheet type radio wave absorber "S series" is a thin resonant type radio wave absorber. A resonant radio wave absorber is a narrow band radio wa...
SHIELD TECH INDUSTRY LIMITED.
20+ people viewing
■Summary E&C SPY is a high-performance pyramidal radio wave absorber made from lightweight open-cell foam and designed for medium power densities. ...
SHIELD TECH INDUSTRY LIMITED.
20+ people viewing
■Summary E&C VHP-FL is an absorber block with a flat top that is designed exclusively for the floor of E&CVHP and used as a walking path to the ane...
FT Works Ltd.
30+ people viewing
Last viewed: 13 hours ago
ECCOSORB CV-3F is an absorber made to exhibit particularly high performance in frequency bands of tens of GHz and above. ■Typical uses Suitable fo...
Access Co., Ltd.
50+ people viewing
The "Flat Radio Wave Absorber B Series" is a radio wave absorber that is lightweight and highly water resistant because it is made of polyolefin re...
SHIELD TECH INDUSTRY LIMITED.
20+ people viewing
Last viewed: 2 hours ago
■Summary E&C CV is a high quality broadband microwave absorber. The base material is moderately flexible polyurethane foam, and the surface is conv...
SHIELD TECH INDUSTRY LIMITED.
20+ people viewing
■Main features ・Lightweight, flexible, broadband, open-cell foamed polyurethane absorbent ・Multi-layered polyurethane sheet impregnated with carb...
SHIELD TECH INDUSTRY LIMITED.
30+ people viewing
Last viewed: 7 hours ago
■Main features Lightweight, flexible, broadband, open-cell foamed polyurethane absorbent sealed in an impermeable woven nylon fabric with a neopren...
Koyo Sangyo Co., Ltd.
120+ people viewing
Last viewed: 1 hour ago
■A foam that can absorb broadband electromagnetic waves. ・Excellent electromagnetic wave absorption performance. - Olefin resin foam with excellen...
Takitech Co., Ltd.
150+ people viewing
Last viewed: 3 hours ago
Very Fast Response
■Features ・Broadband ・A radio wave absorbing sheet that is lightweight, thin, flexible, and has excellent processability. Suppresses radiation no...
4 models listed
Micronics
600+ people viewing
Last viewed: 1 hour ago
Very Fast Response
4.0 Company Review
Providing low -priced radio wavy absorption equipment for target applications ･ 5G NR (28GHz) Development/quality inspection space ･ For 4K large ...
8 models listed
Micronics
310+ people viewing
Last viewed: 4 hours ago
Very Fast Response
4.0 Company Review
600MHz to millimeter -waved radio absorption partition. ･ A partition aimed at absorbing and shielding interference radio waves from the other in ...
Riken Corporation
30+ people viewing
Last viewed: 10 hours ago
Standard Response
■Features ・Radio wave absorber made of ferrite sintered body that utilizes magnetic resonance loss. ・Mn-Zn is used as the material and has excell...
Riken Corporation
20+ people viewing
Last viewed: 1 day ago
Standard Response
■Features ・A radio wave absorber made by kneading carbon into a thin polypropylene plate with a corrugated structure and molding it into a hollow ...
Riken Corporation
20+ people viewing
Last viewed: 1 day ago
Standard Response
Features ■RHFFP ・A radio wave absorber made by kneading ferrite powder and polypropylene and molding it using the injection manufacturing method. ...
Japan Shield Enclosure Co., Ltd.
190+ people viewing
Last viewed: 1 hour ago
■Summary A radio wave absorber is a material that absorbs radio wave energy by converting it into heat. There are two main types of radio wave abso...
2 models listed
Japan Shield Enclosure Co., Ltd.
320+ people viewing
Last viewed: 14 hours ago
■Summary A radio wave absorber is a material that absorbs radio wave energy by converting it into heat. There are two main types of radio wave abso...
6 models listed
Japan Shield Enclosure Co., Ltd.
230+ people viewing
Last viewed: 6 hours ago
■Features ・Sheet-type radio wave absorber <JSE-F series> is a thin, flexible, high-performance, low-cost radio wave absorber. -Thin and lightweigh...
3 models listed
Japan Shield Enclosure Co., Ltd.
450+ people viewing
Last viewed: 1 day ago
■Features We also manufacture and sell various radio wave absorbers that create a comfortable electromagnetic environment for high-frequency radio ...
10 models listed
Tokin America, Inc
390+ people viewing
Last viewed: 3 hours ago
■Summary A noise suppression sheet that effectively suppresses high frequency noise generated from electronic devices. Achieves high noise suppress...
10 models listed
