Versatile Beam Forming With Concentric Excitations Based On Multiple Weighted Sinc or Bessel Function Distribution

In this paper, we propose a beam forming approach capable of synthesizing versatile, pre-specified beam shapes using concentric excitations satisfying multiple weighted sinc or Bessel function distribution. We show by both theoretical calculation and full wave simulation that by tuning different wei...

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Bibliographic Details
Published inIEEE transactions on antennas and propagation Vol. 61; no. 8; pp. 4082 - 4090
Main Authors Xu, Kuiwen, Li, Huan, Zhu, Zhongbo, Huangfu, Jiangtao, Li, Changzhi, Ran, Lixin
Format Journal Article
LanguageEnglish
Published New York, NY IEEE 01.08.2013
Institute of Electrical and Electronics Engineers
Subjects
Antenna radiation patterns
Antennas
Aperture antenna
Apertures
Applied sciences
Arrays
beam forming
bessel function
Exact sciences and technology
Optimization
Polynomials
Radiocommunications
Shape
sinc function
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
Tuning
Performance evaluation
Bessel function
Lateral lobe
Coverage
Earth surface
sinc function
Beam forming
Optimization
Aperture antenna
Satellite antennas
Simulation
Signal processing
Antenna array
Annular antenna
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Summary:In this paper, we propose a beam forming approach capable of synthesizing versatile, pre-specified beam shapes using concentric excitations satisfying multiple weighted sinc or Bessel function distribution. We show by both theoretical calculation and full wave simulation that by tuning different weights of a sinc or Bessel function distribution, not only radiation beams with pencil, flat-topped and bimodal shapes can be synthesized, but also the beam-width and the side lobe level can be independently adjusted. An example is provided to demonstrate how an isoflux beam aiming at a better coverage of the earth surface is synthesized, and how an optimized continuous distribution is properly discretized for a physical realization of a satellite aperture array antenna. The approach proposed in this paper can be applied to a wide range of applications that require performance optimization of concentric ring array antennas.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2013.2260514