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Magnetic absorbers make use of a filler with ferromagnetic properties. This provides the absorber a high permeability and high magnetic loss. Advantages include the ability to greatly compre ss the wavelength owing to the high permeability aiding quarter wavelength resonant absorbers at a thickness that are a fraction of the free space wavelength. Moreover, magnetic absorbers are best for cavity resonance damping since the magnetic field is a maximum on the conductive surface where the absorber is placed.
Disadvantages of magnetic absorber include its weight and high cost. Magnetic absorbers come in numerous elastomer forms comprising silicone, urethane, nitrile and neoprene. The matrix materia l is usuallyselected for its physical properties. Magnetic absorbers are also available in a rigid epoxy form. These absorbers are easy to machine and are mostly used in load applications.
Dielectric absorbers have no magnetic properties. The loss mechanism is purely dielectric. The loss can rise from a range of sources within the dielectric. Dielectric absorbers are typically made in a low cost foam form but can also be used with elastomers. Advantages are low cost and weight. Disadvantages are higher conductivity preventing usage in contact with electronic equipment and their dearth of performance in most cavity resonance applications owing to their lack of magnetic absorption.
Both magnetic and dielectric absorbers are available in moldable forms. This could be a two-part liquid which cures at room or higher temperatures or could be in the form of injection moldable pellets. On the basis of applications, the global Microwave Absorber market research report is classified as military & defence, automation, electronics & telecommunications, chemicals, textiles and healthcare.
On the basis of geography, the global Microwave Absorber market research report is classified as North America, Europe, Asia Pacific and Rest of the World. In case of geographical region, North America is projected to account a major share of the global Microwave Absorber market research report due to its defence sector which is a major consumer.
On the other hand, Asia Pacific is expected to witness significant growth rates in the upcomin g years owing to the electronic component manufacturing sector. Some of the key players that fuel the growth of the global Microwave Absorber market research report include Cuming Microwave Corporation, Laird, Western Rubber & Supply, Inc., ARC Technologies, DMAS, MAST Technologies, Murata, Parker Chomerics, COMTEST, and Kemtron.
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