Results 1 to 10 of about 860,463 (165)

An Improved Pattern Synthesis Iterative Method in Planar Arrays for Obtaining Efficient Footprints with Arbitrary Boundaries [PDF]

open access: yesSensors, 2021
In the present paper, an iterative technique devoted to reproducing efficient footprints with arbitrary boundaries for planar arrays is addressed. The methodology here depicted is based on exploiting the nature of the continuous aperture distribution by ...
Aarón Ángel Salas-Sánchez   +4 more
doaj   +2 more sources

Pattern Synthesis of Linear Antenna Array Using Improved Differential Evolution Algorithm with SPS Framework [PDF]

open access: yesSensors, 2020
In this paper, an improved differential evolution (DE) algorithm with the successful-parent-selecting (SPS) framework, named SPS-JADE, is applied to the pattern synthesis of linear antenna arrays.
Ruimeng Zhang   +3 more
doaj   +2 more sources

On Difference Pattern Synthesis for Spherical Sensor Arrays. [PDF]

open access: yesSensors (Basel)
An innovative method for synthesizing optimum difference patterns of the spherical sensor array is introduced, along with a sidelobe tapering technique. Firstly, we suggest employing the spherical harmonics of degree ±1 to synthesize the spherical array difference pattern; secondly, we study the mapping relationship between the difference pattern of ...
Huang Z   +5 more
europepmc   +4 more sources

Pattern Synthesis of Uniform and Sparse Linear Antenna Array Using Mayfly Algorithm

open access: yesIEEE Access, 2021
Pattern synthesis is a significant research focus in smart antennas due to its extensive use in several radar and communication systems. To improve the optimization performance of pattern synthesis of uniform and sparse linear antenna array, this paper ...
Eunice Oluwabunmi Owoola   +4 more
doaj   +1 more source

A Low-Profile Transmissive Metasurface for Transformation of Plane Wave to Contour Beam Pattern Using 4-Arm Spiral Element

open access: yesIEEE Access, 2021
A low-profile transmissive metasurface is proposed to synthesize contour beam pattern for a European region. A slot array feed is used to illuminate same size metasurface aperture with a plane wave at a near field distance of 24 mm.
Abdul Aziz   +3 more
doaj   +1 more source

Two-Dimensional Multi-Ring Dielectric Lens Antenna to Radiate Fan-Shaped Multi-Beams With Optimum Adjacent-Beam Overlapping Crossover by Genetic Algorithm

open access: yesIEEE Access, 2020
A two-dimensional (2-D) discrete dielectric lens antenna is designed to radiate fan-shaped multi-beam patterns for gain stability in beam switching. The target is to minimize adjacent-beam overlapping transition regions and provide sufficient and similar
Hsi-Tseng Chou   +5 more
doaj   +1 more source

Stroke Pattern Analysis and Synthesis [PDF]

open access: yesComputer Graphics Forum, 2006
Abstract We present a synthesis technique that can automatically generate stroke patterns based on a user‐specified reference pattern. Our method is an extension of texture synthesis techniques to vector‐based patterns. Such an extension requires (a) an analysis of the pattern properties to extract meaningful pattern elements (defined as clusters of ...
Barla, Pascal   +4 more
openaire   +2 more sources

A Deep Learning-Based Approach to Design Metasurfaces From Desired Far-Field Specifications

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
A deep learning neural network model in conjunction with a method to incorporate auxiliary surface waves is developed for the macroscopic design of transmitting metasurfaces.
Chen Niu   +3 more
doaj   +1 more source

The Method of Maximum Power Transmission Efficiency for the Design of Antenna Arrays

open access: yesIEEE Open Journal of Antennas and Propagation, 2021
Various methods have been proposed to control the electromagnetic fields in the near-or far-field region, one of which is to use antenna arrays. This paper reviews a technique, called the method of maximum power transmission efficiency (MMPTE), for the ...
Wen Geyi
doaj   +1 more source

Synthesis of Dual-Beam Patterns by Exploiting Time-Modulation in Unequally Spaced Linear Arrays [PDF]

open access: yesRadioengineering, 2021
In this paper, a novel approach for synthesizing multiple radiation patterns with reduced hardware complexity in the feed network by exploiting the additional degree of freedom ‘time’ in time modulated unequally spaced linear array (TMUSLA) is presented.
S. Patra   +3 more
doaj  

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