Microwave absorbers are used in many different applications, such as communication-, radar- and industrial sensing. Absorbers are also used to reduce the radar cross section of for example aircrafts and ships. In recent years microwaves have also been applied to various medical solutions, such as imaging and sensing in the body. Exposure of focused high-power fields in cancer tumors has also been proven to improve cancer treatment. The purpose of the absorbing material is to dampen the microwaves for various reason. For example, to reduce coupling between antennas, shielding of measurement system to remove disturbances from internal or external error sources, provide a matching between the antenna and the body, etc. A solution for such material is described in the embodiments herein. The material is manufactured as a gel from polymers, water and mineral salt. By altering the ratios of the content different damping and mechanical properties can be obtained. The surface of the material is modified to densify the surface and to reduce the surface slipperiness, avoid evaporation from the gel and to enable disinfection of the surface. An advantage is that the material is flexible and can be shaped to conform to irregularities. The material can also be molded for perfect fit in particular antenna systems solutions.Des absorbeurs de micro-ondes sont utilisés dans de nombreuses applications différentes, telles qu'une détection de communication, une détection de radar et une détection industrielle. Des absorbeurs sont également utilisés pour réduire la section transversale radar, par exemple, d'aéronefs et de navires. Ces dernières années, des micro-ondes ont également été appliquées à diverses solutions médicales, telles que l'imagerie et la détection dans le corps. Il a également été prouvé que l'exposition à des champs de forte puissance focalisés dans des cas de tumeurs cancéreuses permet d'améliorer le traitement du cancer. Le but du matériau absorbant est d'amortir les
