Browsing by Author "Anacleto, Marco Filipe Coelho"
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- Design and Characterization of a New Absorber Material for Anechoic ChambersPublication . Anacleto, Marco Filipe Coelho; Pinho, Doutor Pedro Renato Tavares; Baghel, Amit KumarTelecommunication systems are one of the most significant pillars of industry and modern life. They are essential to provide fast and flawless communications and delivering high-quality services to users. In Radio Frequency (RF) telecommunication systems, the antenna is the interface between the radio system and the external environment, designed to radiate and receive electromagnetic waves. Antenna measurements are fundamental for studying the antenna performance, providing their radiation pattern, gain and others. An anechoic chamber design from 1 to 12 GHz with compact dimensions ( L x W x H ): 0.4 X 0.4 X 0.3 m3 is designed in this dissertation with a new type of absorber. The radiation pattern of a monopole antenna and a patch antenna was used to compare the performance of the traditional absorber material and the new type of absorber, based in Metamaterial (MM). The antenna radiation pattern and gain simulated in the compact chamber with the metamaterial have produced the same result as in free space. The results open the direction to use the metamaterial as the potential absorbing material for future chambers.