Design of Steerable Linear and Planar Array Geometry with Non-uniform Spacing for Side-Lobe Reduction

Ji-Hoon BAE; Kyung-Tae KIM; Cheol-Sig PYO

doi:10.1093/ietcom/e88-b.1.345

Design of Steerable Linear and Planar Array Geometry with Non-uniform Spacing for Side-Lobe Reduction

Ji-Hoon BAE, Kyung-Tae KIM, Cheol-Sig PYO

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In this paper, we present a noble pattern synthesis method of linear and planar array antennas, with non-uniform spacing, for simultaneous reduction of their side-lobe level and pattern distortion during beam steering. In the case of linear array, the Gauss-Newton method is applied to adjust the positions of elements, providing an optimal linear array in the sense of side-lobe level and pattern distortion. In the case of planar array, the concept of thinned array combined with non-uniformly spaced array is applied to obtain an optimal two dimensional (2-D) planar array structure under some constraints. The optimized non-uniformly spaced linear array is extended to the 2-D planar array structure, and it is used as an initial planar array geometry. Next, we further modify the initial 2-D planar array geometry with the aid of thinned array theory in order to reduce the maximum side-lobe level. This is implemented by a genetic algorithm under some constraints, minimizing the maximum side-lobe level of the 2-D planar array. It is shown that the proposed method can significantly reduce the pattern distortion as well as the side-lobe level, although the beam direction is scanned.

Publication: IEICE TRANSACTIONS on Communications Vol.E88-B No.1 pp.345-357

Publication Date: 2005/01/01

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DOI: 10.1093/ietcom/e88-b.1.345

Type of Manuscript: PAPER

Category: Antennas and Propagation

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Ji-Hoon BAE, Kyung-Tae KIM, Cheol-Sig PYO, "Design of Steerable Linear and Planar Array Geometry with Non-uniform Spacing for Side-Lobe Reduction" in IEICE TRANSACTIONS on Communications, vol. E88-B, no. 1, pp. 345-357, January 2005, doi: 10.1093/ietcom/e88-b.1.345.
Abstract: In this paper, we present a noble pattern synthesis method of linear and planar array antennas, with non-uniform spacing, for simultaneous reduction of their side-lobe level and pattern distortion during beam steering. In the case of linear array, the Gauss-Newton method is applied to adjust the positions of elements, providing an optimal linear array in the sense of side-lobe level and pattern distortion. In the case of planar array, the concept of thinned array combined with non-uniformly spaced array is applied to obtain an optimal two dimensional (2-D) planar array structure under some constraints. The optimized non-uniformly spaced linear array is extended to the 2-D planar array structure, and it is used as an initial planar array geometry. Next, we further modify the initial 2-D planar array geometry with the aid of thinned array theory in order to reduce the maximum side-lobe level. This is implemented by a genetic algorithm under some constraints, minimizing the maximum side-lobe level of the 2-D planar array. It is shown that the proposed method can significantly reduce the pattern distortion as well as the side-lobe level, although the beam direction is scanned.
URL: https://globals.ieice.org/en_transactions/communications/10.1093/ietcom/e88-b.1.345/_p

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@ARTICLE{e88-b_1_345,
author={Ji-Hoon BAE, Kyung-Tae KIM, Cheol-Sig PYO, },
journal={IEICE TRANSACTIONS on Communications},
title={Design of Steerable Linear and Planar Array Geometry with Non-uniform Spacing for Side-Lobe Reduction},
year={2005},
volume={E88-B},
number={1},
pages={345-357},
abstract={In this paper, we present a noble pattern synthesis method of linear and planar array antennas, with non-uniform spacing, for simultaneous reduction of their side-lobe level and pattern distortion during beam steering. In the case of linear array, the Gauss-Newton method is applied to adjust the positions of elements, providing an optimal linear array in the sense of side-lobe level and pattern distortion. In the case of planar array, the concept of thinned array combined with non-uniformly spaced array is applied to obtain an optimal two dimensional (2-D) planar array structure under some constraints. The optimized non-uniformly spaced linear array is extended to the 2-D planar array structure, and it is used as an initial planar array geometry. Next, we further modify the initial 2-D planar array geometry with the aid of thinned array theory in order to reduce the maximum side-lobe level. This is implemented by a genetic algorithm under some constraints, minimizing the maximum side-lobe level of the 2-D planar array. It is shown that the proposed method can significantly reduce the pattern distortion as well as the side-lobe level, although the beam direction is scanned.},
keywords={},
doi={10.1093/ietcom/e88-b.1.345},
ISSN={},
month={January},}

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TY - JOUR
TI - Design of Steerable Linear and Planar Array Geometry with Non-uniform Spacing for Side-Lobe Reduction
T2 - IEICE TRANSACTIONS on Communications
SP - 345
EP - 357
AU - Ji-Hoon BAE
AU - Kyung-Tae KIM
AU - Cheol-Sig PYO
PY - 2005
DO - 10.1093/ietcom/e88-b.1.345
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E88-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 2005
AB - In this paper, we present a noble pattern synthesis method of linear and planar array antennas, with non-uniform spacing, for simultaneous reduction of their side-lobe level and pattern distortion during beam steering. In the case of linear array, the Gauss-Newton method is applied to adjust the positions of elements, providing an optimal linear array in the sense of side-lobe level and pattern distortion. In the case of planar array, the concept of thinned array combined with non-uniformly spaced array is applied to obtain an optimal two dimensional (2-D) planar array structure under some constraints. The optimized non-uniformly spaced linear array is extended to the 2-D planar array structure, and it is used as an initial planar array geometry. Next, we further modify the initial 2-D planar array geometry with the aid of thinned array theory in order to reduce the maximum side-lobe level. This is implemented by a genetic algorithm under some constraints, minimizing the maximum side-lobe level of the 2-D planar array. It is shown that the proposed method can significantly reduce the pattern distortion as well as the side-lobe level, although the beam direction is scanned.
ER -