The aim of this work is to study different gel materials that can be swallowed in different solutions in order to try to imitate human tissues from an electromagnetic point of view. In this GFF, it is proposed to develop and validate materials, both natural and synthetic, in which the degree of swelling of these materials can be controlled in order to do so at convenience. These materials will be designed to test biomedical telecommunications, i.e. devices designed to work in the body environment. The intention is to be able to model the different tissues in the future; it is for this reason that the mechanical properties of the products will be studied in such a way as to ensure their consistency after forming. The electromagnetic properties shall be analysed using the open-ended coaxial probe method using a vector network analyser. Mechanical properties shall consist of tensile and compression tests against material deformation. The degree of swelling shall also be analysed with respect to the reagents used and the solutions into which the gels are immersed. The optimal parameters for forming appropriate gels shall be determined depending on the tissue to be imitated in each case. Alloza Pascual, M. (2018). Development of hydrogles imitating the electromagnetic properties of human tissues for testing implantable telecommunication devices. http://hdl.handle.net/10251/107973