Results 211 to 220 of about 8,504 (267)
A dual-band four-port MIMO antenna with a partial ground plane for n257/n260/n261 band applications. [PDF]
Sci RepGautam PK +5 more
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Visualizing radiation patterns of antennas
IEEE Computer Graphics and Applications, 1990An efficient computer graphics tool for investigating the radiation patterns of antennas as functions of their design parameters is presented. Radiation patterns (or the magnitudes of field distributions) of antennas are treated as three-dimensional surfaces, since the magnitudes of the far-field distributions are functions of polar and azimuthal ...
Swapan Chakrabarti +3 more
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Antenna Radiation Pattern Compressive Sensing
MILCOM 2018 - 2018 IEEE Military Communications Conference (MILCOM), 2018Modern wireless communications is placing ever greater demands on the system's antenna. But high-resolution, wide-band antenna pattern measurement remains a slow, expensive process that can hinder research, development, and production. This paper explores the use of compressive sensing to accelerate the measurement process.
Michael L. Don, Gonzalo R. Arce
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Radiation Pattern Antenna System Measurement
2021 13th International Conference on Measurement, 2021The article deals with measuring the radiation characteristics of the antenna system in conditions of very high electromagnetic fields and the presence of other interfering signals.
Michal Dzuris +3 more
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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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The improvement technology of radiation pattern for GPS antenna
2014 International Symposium on Antennas and Propagation Conference Proceedings, 2014This paper shows a radiation pattern improvement method for GPS antenna. By adding 2 wavetraps into a mobile device at a specific location, the upper hemisphere efficiency (UHE) with wavetraps is improved from 26% to 46%. This technology does not increase any antenna area and antenna clearance. It represents the technology is useful for mobile antenna,
Shih-Huang, Yeh +2 more
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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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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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