An Effective Modification of Conventional Beamforming Methods Suitable for Realistic Linear Antenna Arrays

Zaharias Zaharis; Ioannis P. Gravas; Pavlos Lazaridis; Traianos V. Yioultsis; Christos S. Antonopoulos; Thomas D. Xenos

doi:10.1109/TAP.2020.2977822

An Effective Modification of Conventional Beamforming Methods Suitable for Realistic Linear Antenna Arrays

Zaharias Zaharis, Ioannis P. Gravas, Pavlos Lazaridis, Traianos V. Yioultsis, Christos S. Antonopoulos, Thomas D. Xenos

Research output: Contribution to journal › Article

Abstract

Antenna array beamforming (BF) refers to a real-time procedure that aims at calculating proper feeding weights applied to the array elements in order to create a main lobe and a number of nulls towards respective preassigned directions. Most of the research performed on BF has been based on a simplified mathematical model, which ignores the non-isotropic radiation pattern of the array elements and the element mutual coupling. This paper introduces an innovative way to incorporate the actual radiation pattern of the array elements and the element coupling into two popular deterministic BF methods, thus making these methods applicable to realistic antenna arrays. The two modified methods are applied in several scenarios, where a desired signal and several interference signals with various directions of arrival are received by a realistic microstrip linear antenna array. The statistical analysis performed in every scenario demonstrates the validity and effectiveness of the proposed modification.

Original language	English
Article number	9036063
Number of pages	11
Journal	IEEE Transactions on Antennas and Propagation
Volume	68
Issue number	7
Early online date	13 Mar 2020
DOIs	https://doi.org/10.1109/TAP.2020.2977822
Publication status	Published - 1 Jul 2020

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Zaharis, Z., Gravas, I. P., Lazaridis, P., Yioultsis, T. V., Antonopoulos, C. S., & Xenos, T. D. (2020). An Effective Modification of Conventional Beamforming Methods Suitable for Realistic Linear Antenna Arrays. IEEE Transactions on Antennas and Propagation, 68(7), [9036063]. https://doi.org/10.1109/TAP.2020.2977822

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abstract = "Antenna array beamforming (BF) refers to a real-time procedure that aims at calculating proper feeding weights applied to the array elements in order to create a main lobe and a number of nulls towards respective preassigned directions. Most of the research performed on BF has been based on a simplified mathematical model, which ignores the non-isotropic radiation pattern of the array elements and the element mutual coupling. This paper introduces an innovative way to incorporate the actual radiation pattern of the array elements and the element coupling into two popular deterministic BF methods, thus making these methods applicable to realistic antenna arrays. The two modified methods are applied in several scenarios, where a desired signal and several interference signals with various directions of arrival are received by a realistic microstrip linear antenna array. The statistical analysis performed in every scenario demonstrates the validity and effectiveness of the proposed modification.",

keywords = "antenna array beamforming, direction of arrival (DoA), microstrip arrays, minimum variance distortionless response (MVDR), mutual coupling, null steering beamforming (NSB)",

author = "Zaharias Zaharis and Gravas, {Ioannis P.} and Pavlos Lazaridis and Yioultsis, {Traianos V.} and Antonopoulos, {Christos S.} and Xenos, {Thomas D.}",

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language = "English",

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journal = "IEEE Transactions on Antennas and Propagation",

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An Effective Modification of Conventional Beamforming Methods Suitable for Realistic Linear Antenna Arrays. / Zaharis, Zaharias; Gravas, Ioannis P.; Lazaridis, Pavlos; Yioultsis, Traianos V.; Antonopoulos, Christos S.; Xenos, Thomas D.

In: IEEE Transactions on Antennas and Propagation, Vol. 68, No. 7, 9036063, 01.07.2020.

Research output: Contribution to journal › Article

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AU - Gravas, Ioannis P.

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AU - Antonopoulos, Christos S.

AU - Xenos, Thomas D.

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KW - antenna array beamforming

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KW - microstrip arrays

KW - minimum variance distortionless response (MVDR)

KW - mutual coupling

KW - null steering beamforming (NSB)

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