ROHS Radar Absorber Material EMI Foam Absorber Radar Absorbent Material

ROHS Foam Absorbing Material For Radar System Clutter Suppression

Product description

Foam Absorbing Material for radar system clutter suppression is a high-performance microwave absorption solution engineered to minimize unwanted reflections and background interference in radar environments. Manufactured from lightweight, open-cell or closed-cell foam combined with advanced absorbing fillers, this material effectively converts incident radar energy into thermal energy, significantly reducing multipath reflections and electromagnetic clutter. Unlike conventional shielding materials, foam absorbers are designed to absorb rather than reflect RF signals, creating a cleaner electromagnetic environment for accurate radar detection and measurement.

In radar systems, internal reflections from enclosures, support structures, and surrounding surfaces can generate false targets and degrade signal-to-noise ratio. Foam absorbing material is strategically applied to antenna surroundings, radar housings, test fixtures, and chamber walls to suppress these unwanted echoes. Its flexible structure allows easy installation on flat or curved surfaces, while customizable thicknesses enable optimization across different frequency bands, including challenging low-frequency ranges.

This absorbing material offers excellent environmental stability, maintaining consistent performance under temperature variation and long-term operation. It can be supplied in sheets, blocks, or custom-cut shapes to match specific radar layouts. Widely used in aerospace, automotive radar testing, defense systems, and RF laboratories, foam absorbing material provides an effective and lightweight solution for clutter reduction, improved target resolution, and enhanced overall radar system reliability.

Main features

(1) The product is light in weight, which can meet the lightweight requirements of testing equipment

(2) It can be designed in multiple layers and has good absorption effect

(3) Easy to cut, can be processed into various shapes

(4) High product reliability and stable performance

(5) It can be covered with film to meet the requirements of waterproof and moisture-proof, without powder falling, and has good anti-vibration

(6) Meet the requirements of RoHS environmental protection directive, and the flame retardant performance can reach HF-1 level

Size of product

The standard size is: 400mm x 400mm; the tolerance ±5mm can be machined according to demand

Product structure

Polyurethane waterproof membrane

Absorbed foam (multi-layer)

Polyurethane waterproof membrane

Some product models and parameters

Note: ① The parameters shown are for reference only, and the actual test and technical agreement shall prevail; ② The front and back are distinguished. For coated products, the blue surface is the absorption surface; optional non-coated products, the non-coated products, and the light-colored surface is the absorption surface; ③ The metal back is the best for wave absorption effect.

Application fields

Communication and radar system clutter suppression. Absorption components, test chamber, etc.

Chengdu Haojing Electromagnetic Measurement and Control Technology Co., Ltd.

Located in Chengdu, the “Land of Abundance” in Sichuan Province, China, Chengdu Haojing Electromagnetic Measurement and Control Technology Co., Ltd. is a leading provider of electromagnetic functional materials and structures (EMMS). the company has focused on mainstream products and cutting-edge technologies in the EMMS industry. Through persistent independent innovation, it has broken through foreign technological blockades to achieve self-reliance and control in core technologies.

Technology 

The company focuses on fundamental research, applied studies, and industrialization exploration in the EMMS field. It has developed a series of core technologies in material mechanisms, performance design, system selection, synthesis formulations, and process implementation. With nearly 100 patents and 12 core technologies, the company has successfully commercialized its scientific achievements. The company maintains long-term cooperative relationships with leading domestic enterprises in EMMS application industries, universities, and research institutes

Platform

The company has established several national and Sichuan provincial-level innovation platforms, including the "National Electromagnetic Radiation Control Materials Engineering Technology Research Center Achievements Transformation Base", "Sichuan Provincial Enterprise Technology Center", "Sichuan Provincial Electromagnetic Functional Materials and Structural Engineering Technology Research Center", and "Sichuan Provincial Electromagnetic Compatibility Materials and System Engineering Research Center". It has undertaken major scientific research projects at both national and provincial-ministerial levels.

Qualifications

Laboratory CNAS certification, quality management system. Occupational health and safety management system. Environmental management system certification.

Honors

National manufacturing single champion enterprises, national specialized and refined "little giant" enterprises, national high-tech enterprises;

National Science and Technology Progress Award, Second Prize; Sichuan Provincial Science and Technology Progress Award, First Prize;

Anechoic Chamber System Integration

Chengdu Haojing provides high-end microwave anechoic chamber measurement solutions, offering customers professional, efficient, long-lasting, and easy-to-maintain testing systems. These include the Contraction Field RCS measurement system, Contraction Field antenna measurement system, and antenna near-field/away-field testing system, covering both individual components and complete turnkey projects.

Based on its own technological advantages and industrial development, Chengdu Haojing has established a collaborative innovation mechanism with universities to establish Sichuan Electromagnetic Compatibility Materials and System Engineering Research Center, and carried out key technology research and achievement transformation in the field of microwave measurement system.

Exhibition