Study of Broadside Linear Array Antenna with Different Spacing and Number of Elements

Dutta, Kailash Pati

doi:10.22161/ijaers.4.5.30

IJAERS

2017

DOI: 10.22161/ijaers.4.5.30

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Study of Broadside Linear Array Antenna with Different Spacing and Number of Elements

Kailash Pati Dutta¹

Abstract: Abstract-

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Cited by 3 publications

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Performance Investigations of the Uniformly and Non-Uniformly Excited Linear Arrays

Younis

Mohammed

2021

IOP Conf. Ser.: Mater. Sci. Eng.

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Uniform linear arrays include the arrangement of all array elements in one dimension with equal amplitude excitations. Such types of arrays usually have good directivity, narrow beam-width, and they suffer from high sidelobe levels that may cause interference and degrade the overall system performance. The problem of high side lobe levels may overcome by using non-uniformly excited arrays instead of its uniform counterpart. In this paper, the Dolph and Taylor excited arrays are adopted as a non-uniformly excited array. The performance in terms of half power beam width (HPBW), Peak sidelobe level (SLL), directivity (D), and first null-to-null beam width of the uniformly and the two non-uniformly excited arrays are investigated and compared. Simulation results show that the non-uniformly excited arrays can significantly reduce the peak SLL at the cost of lower directivity and wider HPBW. Thus, it is advised to use the non-uniformly excited arrays in the environments that borne high interference pollution.

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Performance Investigations of the Uniformly and Non-Uniformly Excited Linear Arrays

Younis

Mohammed

2021

IOP Conf. Ser.: Mater. Sci. Eng.

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Side Lobe Reduction Using Non-Uniform Linear Phased Arrays

Mohammed

2021

IOP Conf. Ser.: Mater. Sci. Eng.

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Non-uniform amplitude excitation arrays are nowadays very desirable in the modern wireless communication systems. They have ability to provide required radiation characteristics such as low side lobes and good directivity. The uniform amplitude excitation arrays are good in providing good directivity and narrow beam width. However, these desired radiation features are come at the cost of relatively high side lobes. Thus, these types of arrays are not widely used in the wireless communication systems especially when these arrays are operated in a noisy and crowded environment that contains many interfering signals. Non-uniform amplitude excitations such as Dolph and Taylor are considered in this paper and their performances are investigated under various array parameters. Simulation results show that as the amplitude excitations of the array elements decaying at the edge elements more reduction in the sidelobe patterns can be obtained.

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Design Analysis of Array of Dipole Transmitters for Wireless Power Transfer

Miantezila

Adewuyi

Owoola

2022

EMITTER Int'l J. of Engin. Technol.

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Considered in this work are the radiation aspects of a radio-frequency wireless power transfer system. Using the halfwave dipole as a candidate of choice, the current distribution on the antenna is first evaluated and presented using the versatile electromagnetic numerical Method of Moment technique (MoM). Using the current distribution obtained from the kernel of integration, the radiation fields for the single dipole element was obtained. Also, the analysis is extended to uniformly space linear antenna arrays using broadside and ordinary endfire arrays as candidates of interest. The simulation results for the broadside and endfire arrays were presented for 5, 6, 7, 10, 20 and 30 array elements at 0.3, 0.4 and 0.5 inter-element spacing. The peak directivity of broadside array occurs at 30 elements, 0.5λ spacing, and exceeds endfire array peak directivity by 11.27%. In addition to the advantage of an improved directivity achieved by the 7-element broadside array, an improved peak sidelobe level (PSLL) with the lowest PSLL for 7, 20, and 30 elements broadside array occurring at -12.0534 dB, -12.4298 dB, -12.6642 dB, -13.2246 dB, and -13.2747 dB respectively.

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Study of Broadside Linear Array Antenna with Different Spacing and Number of Elements

Abstract: Abstract-

Cited by 3 publications

References 2 publications

Performance Investigations of the Uniformly and Non-Uniformly Excited Linear Arrays

Performance Investigations of the Uniformly and Non-Uniformly Excited Linear Arrays

Side Lobe Reduction Using Non-Uniform Linear Phased Arrays

Design Analysis of Array of Dipole Transmitters for Wireless Power Transfer

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