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Showing 1 to 10 of 10 for “"Wire Antennas"”.
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Input Impedances of Some Curved Wire Antennas
Made available in DSpace on 2014-12-04T21:03:33Z (GMT). No. of bitstreams: 1 6206241.pdf: 3241363 bytes, checksum: 455eb1c514d15c48e047f764abb8f084 (MD5) Previous issue date: 1962
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Automated design and optimization of wire antennas using genetic algorithms
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
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Analysis of Arbitrarily Shaped Wire Antennas Radiating Over a Lossy Half-Space
Made available in DSpace on 2014-12-12T20:55:01Z (GMT). No. of bitstreams: 1 8004249.pdf: 3789104 bytes, checksum: a8c10912bf3a3648386c30bd8c950756 (MD5) Previous issue date: 1979
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A Multilevel Fast Multipole Algorithm for Analyzing Radiation and Scattering From Wire Antennas in a Complex Environment
… for scattering and radiation solutions from wire antennas, IBC surfaces, and inhomogeneous dielectric objects. Unlike the traditional method of moments, the VSIE-MLFMA formulation has a computational complexity of O( N log N) for both CPU time and memory requirement, where N is the number of …
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ΒΕΛΤΙΣΤΟΠΟΙΗΣΗ ΣΥΡΜΑΤΙΝΩΝ ΚΕΡΑΙΩΝ ΜΕΣΑ ΣΤΟ ΦΥΣΙΚΟ ΤΟΥΣ ΠΕΡΙΒΑΛΛΟΝ
THE OPTIMIZATION OF TOTALLY ARBITRARY WIRE ANTENNAS IS EXAMINED WITH NON PREDETERMINED POLARIZATION, AT DIAL FREQUENCY OPERATION AND WITH DIFFRACTION EFFECTS INCLUDED. IN THIS WAY THE RESULT IS AN INCREASED ENVIRONMENTAL APPROXIMATIONOF ANTENNAS.
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Compact Wire Antenna Array for Dedicated Short-Range Communications: Vehicle to Vehicle and Vehicle to Infrastructure Communications
… previously presented. Secondly, several common wire antennas are modeled and simulated in order to assess their potential in DSRC communications. Using an industry standardelectromagnetic full-wave simulator, Ansys-HFSS, all of the antenna designs examined are determined to be lacking to some …
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Investigation, design and implementation of circular-polarised antennas for satellite mobile handset and wireless communications. Simulation and measurement of microstrip patch and wire antennas for handheld satellite mobile handsets and investigations of polarization polarity, specific absorption rate, and antenna design optimization using genetic algorithms.
… design and implement circularly-polarized antennas to be used for handheld satellite mobile communication and wireless sensor networks. Several antennas such as Quadrifilar Spiral Antennas (QSAs), two arm Square Spiral and stripline or coaxially-fed microstrip patch antennas are developed …
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An Empirical Study of Computational Optimisation Techniques for Microstrip Antennas
… been applied to real world problems, such as wire antennas, building structures and turbine blade profiles. Some of these techniques are relatively well known within the scientific and engineering communities, such as genetic algorithms. Microstrip antennas (MSAs) are widely used, especially …
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Design and comparative performance evaluation of novel mobile handset antennas and their radiative effects on users.
… this reason a good efficiency and low profile antennas with low absorption losses by the user are desirable. The Planar Inverted-F Antenna (PIFA) is shown to result into low SAR values and high efficiency when operating in the proximity of the user. Despite these advantages, PIFA is also …
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Helical Antennas with Truncated Spherical Geometry
… of the spherical helical antenna made of a wire wound over a hemispherical surface and backed by a conducting ground plane is introduced. A constant spacing is maintained between the turns of winding. The geometry of this antenna is fully described by the number of turns and the radius of …