A new formulation for the design of Chebyshev arrays

Safaai‐Jazi, A.

doi:10.1109/8.280736

Cited by 92 publications

(51 citation statements)

References 1 publication

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“…The radius of an circular array for 8 phase modes is determined as 0.8208λ, and the possible requirement of elements to synthesize the radiation pattern based on the standard limit given in Equation (12) is 8 ≤ 11.3092 ≤ (12,13,14,15,16). The radiation plot for 8 phase modes with 12 elements is shown in Figure 7.…”

Section: Case 2: 8 Phase Modes (P = 8)mentioning

confidence: 99%

“…For a circular array with 9 phase modes, the suitable radius is determined as r = 0.8555λ, and the standard limit for minimum requirement of elements is 9 ≤ 11.74 ≤ (12,13,14,15,16,17,18). Here directly consider a circular array of 9 phase modes and 15 elements in order to evaluate the requirement of elements according to the proposed analysis, i.e., N = 2(P − 1).…”

Section: Case 3: 9 Phase Modes (P = 9)mentioning

confidence: 99%

“…In practice, by approximating the continuous excitation function for obtaining the desired pattern by a finite number of elements, if the aperture excitation function contains the total of phase modes P , then the antenna array must contain at least 2P elements in order to reproduce the same desired pattern [9]. So in this, the requirement is 7 ≤ 10.2428 ≤ (11,12,13,14). So for 7 phase modes and 11 elements, the radiation pattern is computed according to the proposed method as shown in Figure 4.…”

Section: Case 1: 7 Phase Modes (P = 7)mentioning

confidence: 99%

“…DolphChebyshev arrays were first introduced by Dolph in 1946 [10]. The computation and synthesis of current distributions for Dolph-Chebyshev patterns for linear arrays were further developed by others [11][12][13]. The synthesis of a circular array with isotropic elements are documented in [14,15,[23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

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A Fourier Phase Mode Approach for Chebyshev Pattern Synthesis in Circular Antenna Array

Ganesh¹,

Subhashini²

2017

PIER M

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Abstract-In this article, a novel phase mode analysis for a circular antenna array is discussed. This proposition experiments on the synthesis of Dolph-Chebyshev pattern for circular geometry employing directional element 1 + cos(φ). Here, for pattern synthesis a modified uniform sampling method is proposed, and for investigation of continuous current excitation in a circular array, a Fourier phasemode approach is proposed. The synthesis process permits generation of complex weights for each element to produce the Chebyshev pattern with a desired beamwidth or Side Lobe Level (SLL). The radius is a key factor for a circular geometry and also decides the pattern synthesis, which is determined by using the phase mode concept. Also, this article contributes to the formulation of a mathematical relationship between the number of phase modes (P ) and the number of antenna elements in the array (N ) such as N = 2(P − 1).

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Section: Case 2: 8 Phase Modes (P = 8)mentioning

confidence: 99%

Section: Case 3: 9 Phase Modes (P = 9)mentioning

confidence: 99%

Section: Case 1: 7 Phase Modes (P = 7)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Fourier Phase Mode Approach for Chebyshev Pattern Synthesis in Circular Antenna Array

Ganesh¹,

Subhashini²

2017

PIER M

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“…However, either SLL or beam width can be used as a design parameter, not both. The synthesis and computational techniques of current distribution for DC patterns of linear arrays are developed by various authors [21,22] [24]. In this work, the power division to each element was managed with a Wilkinson power divider to achieve a high SLL of 30 dB.…”

Section: Introductionmentioning

confidence: 99%

Effect of uniform and Dolph--Chebyshev excitations on the performance of circular array antennas

Narsimman¹,

Choukiker²,

Zinka³

et al. 2017

Turk J Elec Eng & Comp Sci

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This paper presents the design and simulation of microstrip circular antenna arrays and studies the effect of excitation with uniform and Dolph-Chebyshev distribution. With side lobe level of 20 dB and 8 microstrip circular patches, the circular array has been demonstrated with minimum grating lobes. The effects of patch and antenna array length on directivity, radiation patterns, and side lobe are also studied in detail. It is found that these antenna arrays are suitable for radar application.

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Side-lobe reduction of a symmetric broadside array by spacing perturbation

1996

Microw. Opt. Technol. Lett.

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Side-lobe reduction of a .rynlinettic broadside array bv tuning-element spacings is presented. Through appropriate point matching and leastsquare error approximation of the radiation power distribution, Jirriher side-lobe reducrion may be achieiied without broadening the beamwidth. Three simulation results will be giL,en to show the applicability of the proposed spncing peHurbation technique in reducing side-lobe leciels. 0 1996 John Wley & Sons, Inc.

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A new formulation for the design of Chebyshev arrays

Cited by 92 publications

References 1 publication

A Fourier Phase Mode Approach for Chebyshev Pattern Synthesis in Circular Antenna Array

A Fourier Phase Mode Approach for Chebyshev Pattern Synthesis in Circular Antenna Array

Effect of uniform and Dolph--Chebyshev excitations on the performance of circular array antennas

Side-lobe reduction of a symmetric broadside array by spacing perturbation

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