eprintid: 340 rev_number: 6 eprint_status: archive userid: 5 dir: disk0/00/00/03/40 datestamp: 2006-12-05 lastmod: 2013-07-03 08:15:13 status_changed: 2013-07-03 08:15:13 type: techreport metadata_visibility: show item_issues_count: 0 creators_name: Azaro, Renzo creators_name: Zeni, Edoardo creators_name: Gazzini, Tommaso creators_name: Dallapiccola, Ramona creators_name: Massa, Andrea title: Synthesis of a Three-Dimensional Triband (L1-L2 GPS and Wi-Fi) Prefractal Tree Antenna ispublished: inpress subjects: TU full_text_status: public abstract: In this letter, the synthesis of a 3D wire antenna with a tree-like shape and operating at three different frequency bands (L1-L2 GPS bands and Wi-Fi) is presented. The Geometrical parameters of the antenna are determined by means of a particle swarm-based optimization procedure exploiting the degrees of freedom of the reference tree geometry for fitting the electrical project costraints. The results of the numerical simulation are shown and compared with those for experimental measurements for assessing the effectiveness of the synthesis procedure. date: 2006-11 date_type: published institution: University of Trento department: informaticat refereed: TRUE referencetext: [1] D. H. Werner and R. Mittra, Frontiers in electromagnetics. Piscataway: IEEE Press,2000. [2] J. Gianvittorio and Y. Rahmat-Samii, "Fractals antennas: a novel antenna minia-turization technique, and applications," IEEE Antennas Propagat. Mag., vol. 44, pp.20-36, Feb. 2002. [3] D. H. Werner, R. L. Haupt, and P. L. Werner, "Fractal antenna engineering: thetheory and design of fractal antenna arrays," IEEE Antennas Propagat. Mag., vol.41, pp. 37-59, Oct. 1999. [4] M. Sindou, G. Ablart, and C. Sourdois, "Multiband and wideband properties ofprinted fractal branched antennas," Electron. Lett., vol. 35, no. 3, pp. 181-182, Feb.1999. [5] C. Puente, J. Claret, F. Sangues, J. Romeu; M.Q. Lopez-Salvans, and R. Pous,"Multiband properties of a fractal tree antenna generated by electrochemical deposi-tion," Electron. Lett., vol. 32, no. 25, pp. 2298-2299, Dec. 1996. [6] D. H. Werner, A. R. Bretones, and B. R. Long, "Radiation Characteristics of thin-wireternary fractal trees," Electron. Lett., vol. 35, no. 8, pp. 609-610, Dec. 1999. [7] J. S. Petko and D. H. Werner, "Miniature reconfigurable three-dimensional fractaltree antennas," IEEE Trans. Antennas Propagat., vol. 52, no. 8, pp. 1945-1956, Aug.2004. [8] C. Puente, J. Romeu, R. Pous, X. Garcia, and F. Benitez, "Fractal multiband antennabased on the Sierpinski gasket," Electron. Lett., vol. 32, pp. 1-2, Jan. 1996. [9] M. Fernandez Pantoja, F. Garcia Ruiz, A. Rubio Bretones, R. Gomez Martin, J. M.Gonzales-Arbesù, J. Romeu, and J. M. Rius, "GA design of wire pre-fractal antennasand Comparison with other euclidean geometries," IEEE Antennas Wireless Propagat.Lett., vol. 2, pp. 238-241, 2003. [10] M. Fernandez Pantoja, F. Garcia Ruiz, A. Rubio Bretones, S. Gonzales Garcia, R.Gomez Martin, J. M. Gonzales-Arbesù, J. Romeu, J. M. Rius, P. L. Werner, and D.H. Werner, "GA design of small thin-wire antennas: Comparison with Sierpinski typeprefractal antennas," IEEE Trans. Antennas Propagat., vol. 54, pp. 1879-1882, Jun.2006. [11] R. Azaro, F. De Natale, M. Donelli, E. Zeni, and A. Massa, "Synthesis of a prefrac-tal dual-band monopolar antenna for GPS applications," IEEE Antennas WirelessPropagat. Lett., vol. 5, pp. 361-364, 2006. [12] J. Kennedy, R. C. Eberhart, and Y. Shi, Swarm Intelligence. San Francisco: MorganKaufmann Publishers, 2001. [13] J. Robinson and Y. Rahmat-Samii, "Particle swarm optimization in electromagnet-ics," IEEE Trans. Antennas Propagat., vol. 52, pp. 397-407, Feb. 2004. [14] M. Donelli and A. Massa, "A Computational approach based on a particle swarm op-timizer for microwave imaging of two-dimensional dielectric scatterers," IEEE Trans.Microwave Theory Techn., vol. 53, pp. 1761-1776, May 2005. [15] D. H. Werner, P. L. Werner, and D. H. Church, "Genetically engineered multibandfractal antennas," Electron. Lett., vol. 37, pp. 1150-1151, Sep. 2001. [16] R. Azaro, F. De Natale, M. Donelli, A. Massa, and E. Zeni, "Optimized design ofa multi-function/multi-band antenna for automotive rescue systems," IEEE Trans.Antennas Propagat., vol. 54, no. 2, pp. 392-400, Feb. 2006. [17] R. F. Harrington, Field Computation by Moment Methods. Malabar, Florida: RobertE. Krieger Publishing Co., 1987. citation: Azaro, Renzo and Zeni, Edoardo and Gazzini, Tommaso and Dallapiccola, Ramona and Massa, Andrea (2006) Synthesis of a Three-Dimensional Triband (L1-L2 GPS and Wi-Fi) Prefractal Tree Antenna. [Technical Report] (In Press) document_url: http://www.eledia.org/students-reports/340/1/DIT-06-068.pdf