Sparse array antenna design based on dolph-chebyshev and genetic algorithms

Enache, Florin; Deparateanu, Daniel; Enache, Andrei; Popescu, Florin

doi:10.1109/ecai.2016.7861091

Cited by 14 publications

(3 citation statements)

References 6 publications

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“…In this work, for overcoming the above problems, we resort to the Chebyshev polynomials in the design of planar differential microphone array, which has been widely used in traditional array design area [ 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 ]. The main contributions of this manuscript are as follows.…”

Section: Introductionmentioning

confidence: 99%

Design of Planar Differential Microphone Array Beampatterns with Controllable Mainlobe Beamwidth and Sidelobe Level

Wang

Zhao

et al. 2023

Sensors

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The differential microphone array, or differential beamformer, has attracted much attention for its frequency-invariant beampattern, high directivity factor and compact size. In this work, the design of differential beamformers with small inter-element spacing planar microphone arrays is concerned. In order to exactly control the main lobe beamwidth and sidelobe level and obtain minimum main lobe beamwidth with a given sidelobe level, we design the desired beampattern by applying the Chebyshev polynomials at first, via exploiting the structure of the frequency-independent beampattern of a theoretical Nth-order differential beamformer. Next, the so-called null constrained and least square beamformers, which can obtain approximately frequency-invariant beampattern at relatively low frequencies and can be steered to any direction without beampattern distortion, are proposed based on planar microphone arrays to approximate the designed desired beampatterns. Then, for dealing with the white noise amplification at low-frequency bands and beampattern divergence problems at high-frequency bands of the null constrained and least square beamformers, the so-called minimum norm and combined solutions are deduced, which can compromise among the white noise gain, directivity factor and beampattern distortion flexibly. Preliminary simulation results illustrate the properties and advantages of the proposed differential beamformers.

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Section: Introductionmentioning

confidence: 99%

Design of Planar Differential Microphone Array Beampatterns with Controllable Mainlobe Beamwidth and Sidelobe Level

Wang

Zhao

et al. 2023

Sensors

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“…For instance, we can use optimization algorithms to design a shaped radiation pattern of the antenna array according to a specific application scenario [5][6][7], which quickly can save time and effort. Different array synthesis methods can also be used to achieve the goal [1,[8][9][10]. For example, antenna arrays with a sector beam pattern are designed on the premise of maintaining controllable excitation amplitude and phase according to the Woodward-Lawson array synthesis method [8].…”

Section: Introductionmentioning

confidence: 99%

“…For example, antenna arrays with a sector beam pattern are designed on the premise of maintaining controllable excitation amplitude and phase according to the Woodward-Lawson array synthesis method [8]. The Taylor synthesis method [9] and the Chebyshev synthesis method [1,10] are used to design antenna arrays with low sidelobes and high gain patterns. C. Wang, Y. Chen and S. Yang propose a planar antenna array with flat-top and sharp cut-off radiation patterns and the half-power beamwidth (HPBW) of the array in both the H-plane and E-plane exceeds 45 • , but its gain is low [11].…”

Section: Introductionmentioning

confidence: 99%

Design of Millimeter Wave Radar Antenna Array with Flat-top Pattern

Wang¹,

Zhang

Gao

et al. 2023

ACES Journal

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In this paper, a planar millimeter wave radar array antenna with flat-top pattern is proposed for wide detection angle. Firstly, the Chebyshev synthesis method is used to design the linear array with high gain and low sidelobe pattern which works in the 24 GHz frequency band. The maximum gain of the linear array is roughly 15 dBi, and the main-sidelobe ratio is close to 20 dB. By setting the excitations and phases distribution of the planar array feeding network, a 5××4 antenna array with a flat-top pattern is obtained. The simulated and measured results show that the radar antenna array has a wide half-power beamwidth of 88 degrees, which can ensure that the automotive radar has a longer detection range and a larger monitoring angle.

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Compact Miniature MIMO Array Antenna Towards Millimeter Wave

Liu

Han

et al. 2021

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

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Sparse array antenna design based on dolph-chebyshev and genetic algorithms

Cited by 14 publications

References 6 publications

Design of Planar Differential Microphone Array Beampatterns with Controllable Mainlobe Beamwidth and Sidelobe Level

Design of Planar Differential Microphone Array Beampatterns with Controllable Mainlobe Beamwidth and Sidelobe Level

Design of Millimeter Wave Radar Antenna Array with Flat-top Pattern

Compact Miniature MIMO Array Antenna Towards Millimeter Wave

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