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Radiation pattern synthesis for a prolate spheroidal antenna
2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2017An antenna is designed consisting of axial surface currents on a prolate spheroidal metallic surface. The dual orthogonality of the prolate spheroidal wave functions is utilized to synthesize a far field radiation pattern which best approximates a desired far field pattern for a given arbitrary superdirective ratio.
Marco D Poort, Piergiorgio LE Uslenghi
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The Effect of Antenna Network Configurations on the Radiation Patterns
2019 International Conference on Internet of Things, Embedded Systems and Communications (IINTEC), 2019In this paper, we present different configurations of antenna networks for Worldwide Interoperability for Microwave Access (WiMAX) communication system. This phase consists in networking the elementary radiating elements in a particular geometric arrangement to guarantee the requirements imposed in terms of gain, maximum size and radiation patterns ...
Said Ghnimi +3 more
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A reconfigurable radiation pattern annular slot antenna
2016 Loughborough Antennas & Propagation Conference (LAPC), 2016This paper contemplate a theoretical analysis of a pattern reconfigurable antenna using annular slot antenna operating in low frequency. A shorting pin is inserted to allow the annular slot antenna to have an omni-directional radiation pattern like a monopole antenna.
Aziz, NA, Radhi, A, Nilavalan, R
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A reconfigurable radiation pattern metamaterial-inspired antenna
2014 Loughborough Antennas and Propagation Conference (LAPC), 2014In this work, a reconfigurable radiation pattern metamaterial-inspired antenna is proposed. The structure consists of simple split resonator (SRR) loaded with two open circuits and introduced into the near field region of a monopole antenna. Two configurations are studied by considering the state of the open circuits.
Dakhli, Saber +4 more
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Antenna Radiation Pattern Measurement at a Reduced Distance
2004 Conference on Precision Electromagnetic Measurements, 2004A method has been developed to obtain the far-field radiation pattern of an antenna at a reduced distance where the far-field distance condition is not satisfied. It uses an asymptotic antenna transmission formula and angular mode deconvolution technique to determine the far-field radiation ...
Jeong-Hwan Kim, Hong-Ki Choi
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Radiation pattern of cylindrical‐wraparound chirostrip antennas
Microwave and Optical Technology Letters, 1999In this paper, a cylindrical-wraparound microstrip antenna flush mounted to the upper surface of a chiral substrate is analyzed. The chiral substrate is wrap fabricated around a conducting core cylinder. Dyadic Green's functions for such a cylindrical structure are formulated in terms of cylindrical vector wave eigenfunctions.
Li, L.-W., Zhao, T.-X., Leong, M.-S.
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Simulation of antenna radiation pattern
Microwave and Optical Technology Letters, 1995AbstractAdequately modeling the radiation pattern of a high‐performance antenna system usually requires the expensive development of complicated electromagnetic software or the storage of an extremely large number of measured data. An alternative and efficient simulation technique is described in this article using a spherical wave expansion model ...
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On the radiation pattern of a multibeam antenna
IEEE Transactions on Antennas and Propagation, 1976The optimum radiation of a lens antenna with an array feed of M elements is desired, which will exhibit maximum gain in a number ( k ) of specified directions and nulls in other ( j ) specified directions. This optimum is not derived; however, a condition for the optimum is shown to be some superposition of just ( k + j ) individual radiation patterns ...
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Plasma Antenna Radiation Patterns
AIP Conference Proceedings, 2003Elevation angle pattern measurements of our Plasma Antenna are presented and compared with results from computer models. Good agreement is found for the measurements with patterns predicted by our linearly decreasing conductivity model for the plasma antenna, derived from computer models using readily available packages.
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Calculating antenna radiation patterns
Electrical Engineering, 1944CALCULATIONS of the horizontal relative field patterns of antennas are long and laborious and increase in complexity with the number of antenna elements employed. Present calculating machines are useful only for antenna-beam arrays consisting of not over three elements.
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