Design of Near-Field Synthesis Arrays Through Global Optimization

Clauzier, Sébastien; Mikki, Said; Antar, Yahia M. M.

doi:10.1109/tap.2014.2367536

Cited by 54 publications

(32 citation statements)

References 15 publications

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“…In [43], an unconventional approach combining NF-FF transformation and a GA is proposed. A desired NF distribution is assigned and its corresponding FF distribution is calculated.…”

Section: Further Techniquesmentioning

confidence: 99%

“…Their performance is usually excellent provided that a proper fitness function is defined (a function playing a role equivalent to the cost function in direct optimization), although the computation time is typically larger than using other techniques. In [43], the proposed method takes advantage of the maturity of FF synthesis methods based on GA, which have been proven to be successful, although a direct application to the NF distribution might have been explored.…”

Section: Further Techniquesmentioning

confidence: 99%

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An Overview on Synthesis Techniques for Near-Field Focused Antennas

Pino¹,

Ayestaran²,

Nepa³

et al. 2020

Recent Wireless Power Transfer Technologies

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Microwave and millimeter-wave antennas focused in their radiative near-field (NF) region, which are usually named as near-field focused (NFF) antennas, are becoming increasingly popular. Indeed, when compared to conventional far-field focused antennas, they can guarantee performance improvement at a relatively limited implementation cost, in short-range communication systems, wireless power transfer arrangements, remote nondestructive sensing setups, and radiofrequency identification apparatus, among many others. In this chapter, application fields and metrics for NFF antennas will be briefly summarized. Most of the chapter is then devoted to the description, classification, and critical review of the many synthesis techniques that go beyond the simple, yet effective and with a clear physical insight, conjugate-phase approach.

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“…In [43], an unconventional approach combining NF-FF transformation and a GA is proposed. A desired NF distribution is assigned and its corresponding FF distribution is calculated.…”

Section: Further Techniquesmentioning

confidence: 99%

Section: Further Techniquesmentioning

confidence: 99%

An Overview on Synthesis Techniques for Near-Field Focused Antennas

Pino¹,

Ayestaran²,

Nepa³

et al. 2020

Recent Wireless Power Transfer Technologies

View full text Add to dashboard Cite

show abstract

“…Once the slot has been replaced by a magnetic current, the current itself can be discretized by replacing it by an array of magnetic infinitesimal dipole (MIDs). The infinitesimal dipole model method has been used successfully in many applications, ranging from mutual coupling and antenna modeling [8] to near-field focusing [9] and MIMO antenna design [10]. In the present paper we propose applying the method to develop a slot array design method.…”

Section: Validationmentioning

confidence: 99%

A new method for the design of slot antenna arrays: Theory and experiment

Clauzier

Mikki

Shamim

et al. 2016

2016 10th European Conference on Antennas and Propagation (EuCAP)

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Abstract-The present paper proposes and validates a new general design methodology that can be used to automatically find proper positions and orientations of waveguide-based radiating slots capable of realizing any given radiation beam profile. The new technique combines basic radiation theory and waveguide propagation theory in a novel analytical model that allows the prediction of the radiation characteristics of generic slots without the need to perform full-wave numerical solution. The analytical model is then used to implement a low-cost objective function within a global optimization scheme (here genetic algorithm.) The algorithm is then deployed to find optimum positions and orientations of clusters of radiating slots cut into the waveguide surface such that any desired beam pattern can be obtained. The method is verified using both fullwave numerical solution and experiment.

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“…Then bring some problems such as there is coupling between elements and feed lines, which will decrease the gain of the array antenna and make the axial ratio terrible . Then, we have to increase the distance between each antenna element to cut down the coupled effects, but it will significantly increase the size of the antenna array again, which does not benefit to miniaturization . This paper presented a 3 × 8 patch antenna array with independently feeding ports.…”

Section: Introductionmentioning

confidence: 99%

“…4,5 Then, we have to increase the distance between each antenna element to cut down the coupled effects, but it will significantly increase the size of the antenna array again, which does not benefit to miniaturization. [6][7][8][9] This paper presented a 3 × 8 patch antenna array with independently feeding ports. What is more, the distance between each antenna element was only half of free space wavelength, which could decrease the size of the array significantly.…”

Section: Introductionmentioning

confidence: 99%

Quad frequency stacked patch planar antenna array for radar and navigational applications

Kumar

Prasad

2019

Micro & Optical Tech Letters

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This paper presented a quad frequency passive array stacked patch antenna, which work on the L and S band frequencies of 1.1.76 GHz, 1.575 GHz, 1.60 GHz, and 2.492 GHz. The array contained 24 rectangular stacked patch antenna elements and this 3 × 8 array is fed by independent coaxial method. This design reduced the effects of the complex feeding network on antenna performance and the distance between each antenna element is only half of free space wavelength, so the size of whole array was reduced significantly. Proposed antenna is designed and fabricated using FR4 epoxy substrate and the performance of the antenna is analyzed using ANSYS HFSS software. This antenna can also be combined into a bigger array with more elements, then make the miniaturization of the array with multifunctional operation more obvious.

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Design of Near-Field Synthesis Arrays Through Global Optimization

Cited by 54 publications

References 15 publications

An Overview on Synthesis Techniques for Near-Field Focused Antennas

An Overview on Synthesis Techniques for Near-Field Focused Antennas

A new method for the design of slot antenna arrays: Theory and experiment

Quad frequency stacked patch planar antenna array for radar and navigational applications

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