Several results obtained by simulations and measurements using low cost metamaterial dielectric grids, constructed using commercial CPVC pipes are presented in detail. The potential offered by this approach can find low cost applications in radiated field control, EMC and microwave devices. In particular this work presents a way of applying very simple metamaterials grids actuating like a RF filter, where, by the variation of the angle and distance between the grids taking as reference the incident field propagation direction, it is possible to obtain frequency bandgaps, passband frequency ranges and move the start and stop frequency of these two kinds of frequency band effects.200711961 Cheype, C., An electromagnetic bandgap resonator antenna (2002) IEEE Transactions on Antennas and Propagation, 50 (9)Davidov, D., Golosovsky, M., Neve-Oz, Y., Magneticfield tunable photonic stop band in metallodielectric photonic crystals (2003) Synthetic Metals, 139, pp. 705-709Hickmann, J.M., Microwave measurements of the photonic band gap in a two-dimensional photonic crystal slab (2002) Journal of Applied Physics, 92 (11)Hill, M.J., Ziolkowsk, R.W., A high-Q reconfigurable planar ebg cavity resonator (2001) IEEE Microwave and Wireless Components Letters, 11 (6)Joannopoulos, J.D., Meade, R.D., (1995) Photonic Crystals: Molding the Flow of Light, , Princeton, (September)Kock, E., Metallic Delay Lens (1948) Bell System Tech. J., 27, pp. 58-82. , JanuaryOliveira, L.C.M., (2001) Aplicação de Estruturas PBG em Dispositivos Planares de Microondas - Linhas e Antenas - Em Substratos Dielétricos e Semicondutores: Desenvolvimento de Tecnologia e Caracterização, , Masters Thesis, State University of Campinas - UNICAMP - BRAZIL, (September)Ozbay, E., Microwave Applications of Photonic Crystals (2003) Progress in Electromagnetics Research, PIER, 41, pp. 185-209Samii, Y.R., Electromagnetic band-gap structures: Classification, characterization and applications (2001) 11th International Conference on Antennas and Propagation, N°, 480. , AprilSartori, E.J., Hernández-Figueroa, H.E., Montagem de Baixo Custo Para o Estudo Experimental de Metamateriais (2006) MOMAG, Belo Horizonte, , BRAZILSun, J.S., Efficiency of Various Photonic Bandgap (PBG) Structures (2002) 3° IEEE International Conference on Microwave and Milimeter Wave TechnologyVaradanb, V.V., Shenga, Z., Tuning the effective properties of metamaterials by changing the substrate properties (2007) JOURNAL of APPLIED PHYSICS, 101, pp. 101-108Veselago, V.G., Electrodynamics of Substances with Simultaneously Negative Values of Sigma and Mu (1968) Sov. Phys. USPEKHI, (10), p. 509Yablonovitch, E., Inhibited spontaneous emission in solid-state physics and electronics (1987) Physical Review Letters, (58), pp. 2059-2063Yang, F., Applications of electromagnetic band-gap (EBG) structures in microwave antenna designs (2002) Proceedings - 3° IEEE International Conference on Microwave and Milimeter Wave TechnologyYeo, Y.K., Fabrication of Photonic Band Gap Structures (2002) Department of ECE, Georgia Tech - USA, , December