RF Absorber Foam Pyramidal

Description

What is RF Absorber Foam Pyramidal?

The RF Absorber Foam Pyramidal is one kind of Foam Radar Absorbing Material (RAM). C&T RF Antennas Inc also supplies flat radar-absorbing foam sheets. Contact us for more RF Absorber Foam Pyramidal details.

RF Absorber Foam Pyramidal Absorbing material refers to a type of functional material that can absorb and attenuate the electromagnetic wave energy incident in space, and reduce or eliminate reflected electromagnetic waves.

Like all composite materials, the absorbing composite material is also composed of a functional body and a matrix.

In RF Absorber Foam Pyramidal engineering applications, in addition to requiring high absorption of electromagnetic waves in a wide bandwidth, materials are also required to have properties such as lightweight, temperature resistance, humidity resistance, and corrosion resistance.

Several common absorbing materials are iron ferrite, metal iron powder, polycrystalline iron fiber, absorbing materials, carbon graphite, acetylene, carbon black, carbon fiber, carbon nanotubes.

Other types of conductive polymer chiral materials are plasma materials ceramic silicon carbide composite materials.

RF Absorber Foam Pyramidal features

Good electromagnetic wave absorption performance.

Operating temperature -40° ~120° C.

Power tolerance is 1 kW/m2.

Fire resistance conforms to (ISO 11925-2, UL 94 HBF, NRL8093 Test 1, 2, 3).

RF Absorber Foam Pyramidal description

The RF Absorber Foam Pyramidal is a solid foam absorber with good broadband absorbing performance under the conditions of vertical incidence and oblique incidence of electromagnetic waves and is widely used in various microwave anechoic chambers.

The computer profiling cutting machine is used to cut the polyurethane foam pyramid, with beautiful appearance and structure, accurate size, no dust shedding, no moisture absorption, and discoloration.

The product specifications are complete to meet the requirements of different types of darkrooms and dark boxes, and there are special materials suitable for corners, vents, lighting, and other special parts to meet special use needs.

The flame retardant performance meets the national B2 material standard requirements, the oxygen index is ≥28%, and it meets the requirements of the NRL 8093 test standard.

Specially designed and manufactured production equipment and strict production process control are used to ensure the consistency, stability, and reliability of product performance, and to ensure the performance requirements of the microwave anechoic chamber.

RF Absorber Foam Pyramidal specifications

500x500x30mm

500x500x50mm

RF absorber material properties

The operating frequency is 80MHz ~100GHz, and it has good vertical incidence, oblique incidence, scattering, and transmission attenuation performance.

When the thickness of the material and the working wavelength d/in are 0.3, 0.7, 2, 6, and 16, the reflectivity Rw of vertical incidence reaches -15~-20dB, -25~-30dB, -35~-40dB, -50dB, -60dB. Within 30° of oblique incidence, Rw does not change much.

As the angle of incidence increases, Rw begins to get worse. At 60°, Rw increases by 10-15dB compared to normal incidence. Horizontal polarization is more obvious than vertical polarization.

Application of absorbing materials

Main applications: communication and radar system clutter suppression, anti-electromagnetic interference, microwave anechoic chamber, etc.

Military stealth and anti-stealth confrontation and opposition resistance

Promote human body safety protection, microwave anechoic chambers, eliminate electromagnetic interference in equipment communication and navigation systems, the confidentiality of safety information, improve overall machine performance, increase the signal-to-noise ratio, electromagnetic compatibility, and waveguide or coaxial absorption components, etc.

The solid cone-angle absorbing material RF Absorber Foam Pyramidal is the model with the earliest application time and the widest application range among the absorbing materials.

It is widely used in the construction of electric wave anechoic chambers, microwave anechoic chambers, dark boxes, wave absorbing screens and wave absorbing walls, etc.

Used to cover the reflectors of the test environment, reduce background noise, eliminate clutter interference, and improve test accuracy.

Radio anechoic chamber (non-echo chamber, microwave anechoic chamber, EMC electromagnetic compatibility anechoic chamber, etc.); absorbing screens and absorbing walls, etc.;

Cover the reflectors of the test environment, reduce background noise, eliminate clutter interference, and improve test accuracy. Use indoors, not outdoors;