The possibility of using "Santista denim" textile as a dielectric material in radio frequency (RF) and microwaves devices has been demonstrated by means of the design, implementation and characterization of a classical antenna. A commercial conductive textile was used as metallic parts of the antenna and the cited textile as substrate one. The characterization of textile and some theoretical and measured antenna parameters are shown in this manuscript. © 2011 IEEE. 546550Hall, P.S., Hao, Y., (2006) Antennas and Propagation for Body-Centric Wireless Communications, , Boston/London: Artech HouseVolakis, J., Kiziltas, G., Novel Materials for RF Devices IEEE Antennas and Propagation Society International Conference, June 2007Santas, J.G., Alomainy, A., Hao, Y., Textile Antennas for On-Body Communications: Techniques and Properties (2007) IEEE Antenna and Propagation, pp. 1-4Rahmat-Samii, Y., Wearable and implantable antennas in body-centric communications (2007) Proc. 2nd European Conf. Antennas and Propag., EuCAP 2007, Edinburgh, U.K., pp. 1-5Bayram, Y., Zhou, Y., Volakis, J.L., Shim, B.-S., Kotov, N.A., Conductive Textiles and Polymer-Ceramic Composites for Novel Load Bearing Antennas (2008) IEEE Antennas and Propagation Society International Symposium, pp. 1-4Hertleer, C., Rogier, H., Vallozzi, L., Van Langenhove, L., A textile antenna for off-body communication integrated into protective clothing for fire-fighters (2009) IEEE Trans. Antennas Propag., 57, p. 919Declercq, F., Rogier, H., Active Integrated Wearable Textile Antenna with Optimized Noise Characteristics (2010) IEEE Transactions on Antennas and Propagation, 58 (9), pp. 3050-3054. , septemberHarmer, S.W., Rezgui, N., Bowring, N., Luklinska, Z., Ren, G., Determination of the complex permittivity of textiles and leather in the 14-40 GHz millimetre-wave band using a free-wave transmittance only method (2008) IET Microw. Antennas Propag., 2 (6), pp. 606-614Salonen, P., Rahmat-Samii, Y., Effects of Antenna Bending on Input Matching and Impedance Bandwidth (2006) The European Conference on Antennas and Propagation: EuCAP 2006, 6-10 November 2006, Nice, FranceHeping, Y., Virga, K.L., Prince, J.L., Dielectric constant and loss tangent measurement using a stripline fixture (1998) IEEE Electronic Components & Technology Conference, 48, pp. 1077-1082Moretti, A., Bravo-Roger, L.L., Malheiros-Silveira, G.N., Hernández- Figueroa, H.E., Yoshica, R., Bertuzo, J., Textile Susbtrate for RFID Devices Wireless Systems International Meeting, WSIN. Campina Grande, Brazil, 2010Bahl, I.J., Garg, R., A designer's guide to stripline circuits (1978) Microwaves, pp. 90-96. , JanuaryBalanis, C.A., (2005) Antenna Theory - Analysis & Design, , 3 rd, John Wiley, New York