IEICE TRANSACTIONS on Communications
Improved Optimal Configuration for Reducing Mutual Coupling in a Two-Level Nested Array with an Even Number of Sensors
Summary :
To reduce mutual coupling of a two-level nested array (TLNA) with an even number of sensors, we propose an improved array configuration that exhibits all the good properties of the prototype optimal configuration under the constraint of a fixed number of sensors N and achieves reduction of mutual coupling. Compared with the prototype optimal TLNA (POTLNA), which inner level and outer level both have N/2 sensors, those of the improved optimal TLNA (IOTLNA) are N/2-1 and N/2+1. It is proved that the physical aperture and uniform degrees of freedom (uDOFs) of IOTLNA are the same as those of POTLNA, and the number of sensor pairs with small separations of IOTLNA is reduced. We also construct an improved optimal second-order super nested array (SNA) by using the IOTLNA as the parent nested array, termed IOTLNA-SNA, which has the same physical aperture and the same uDOFs, as well as the IOTLNA. Numerical simulations demonstrate the better performance of the improved array configurations.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E105-B No.7 pp.856-865
- Publication Date
- 2022/07/01
- Publicized
- 2021/12/29
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.2021EBP3131
- Type of Manuscript
- PAPER
- Category
- Antennas and Propagation
Authors
Weichuang YU
Sichuan University
Peiyu HE
Sichuan University
Fan PAN
Sichuan University
Ao CUI
Sichuan University
Zili XU
The Second Research Institute of CAAC
Keyword
Latest Issue
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Weichuang YU, Peiyu HE, Fan PAN, Ao CUI, Zili XU, "Improved Optimal Configuration for Reducing Mutual Coupling in a Two-Level Nested Array with an Even Number of Sensors" in IEICE TRANSACTIONS on Communications,
vol. E105-B, no. 7, pp. 856-865, July 2022, doi: 10.1587/transcom.2021EBP3131.
Abstract: To reduce mutual coupling of a two-level nested array (TLNA) with an even number of sensors, we propose an improved array configuration that exhibits all the good properties of the prototype optimal configuration under the constraint of a fixed number of sensors N and achieves reduction of mutual coupling. Compared with the prototype optimal TLNA (POTLNA), which inner level and outer level both have N/2 sensors, those of the improved optimal TLNA (IOTLNA) are N/2-1 and N/2+1. It is proved that the physical aperture and uniform degrees of freedom (uDOFs) of IOTLNA are the same as those of POTLNA, and the number of sensor pairs with small separations of IOTLNA is reduced. We also construct an improved optimal second-order super nested array (SNA) by using the IOTLNA as the parent nested array, termed IOTLNA-SNA, which has the same physical aperture and the same uDOFs, as well as the IOTLNA. Numerical simulations demonstrate the better performance of the improved array configurations.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2021EBP3131/_p
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@ARTICLE{e105-b_7_856,
author={Weichuang YU, Peiyu HE, Fan PAN, Ao CUI, Zili XU, },
journal={IEICE TRANSACTIONS on Communications},
title={Improved Optimal Configuration for Reducing Mutual Coupling in a Two-Level Nested Array with an Even Number of Sensors},
year={2022},
volume={E105-B},
number={7},
pages={856-865},
abstract={To reduce mutual coupling of a two-level nested array (TLNA) with an even number of sensors, we propose an improved array configuration that exhibits all the good properties of the prototype optimal configuration under the constraint of a fixed number of sensors N and achieves reduction of mutual coupling. Compared with the prototype optimal TLNA (POTLNA), which inner level and outer level both have N/2 sensors, those of the improved optimal TLNA (IOTLNA) are N/2-1 and N/2+1. It is proved that the physical aperture and uniform degrees of freedom (uDOFs) of IOTLNA are the same as those of POTLNA, and the number of sensor pairs with small separations of IOTLNA is reduced. We also construct an improved optimal second-order super nested array (SNA) by using the IOTLNA as the parent nested array, termed IOTLNA-SNA, which has the same physical aperture and the same uDOFs, as well as the IOTLNA. Numerical simulations demonstrate the better performance of the improved array configurations.},
keywords={},
doi={10.1587/transcom.2021EBP3131},
ISSN={1745-1345},
month={July},}
Copy
TY - JOUR
TI - Improved Optimal Configuration for Reducing Mutual Coupling in a Two-Level Nested Array with an Even Number of Sensors
T2 - IEICE TRANSACTIONS on Communications
SP - 856
EP - 865
AU - Weichuang YU
AU - Peiyu HE
AU - Fan PAN
AU - Ao CUI
AU - Zili XU
PY - 2022
DO - 10.1587/transcom.2021EBP3131
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E105-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2022
AB - To reduce mutual coupling of a two-level nested array (TLNA) with an even number of sensors, we propose an improved array configuration that exhibits all the good properties of the prototype optimal configuration under the constraint of a fixed number of sensors N and achieves reduction of mutual coupling. Compared with the prototype optimal TLNA (POTLNA), which inner level and outer level both have N/2 sensors, those of the improved optimal TLNA (IOTLNA) are N/2-1 and N/2+1. It is proved that the physical aperture and uniform degrees of freedom (uDOFs) of IOTLNA are the same as those of POTLNA, and the number of sensor pairs with small separations of IOTLNA is reduced. We also construct an improved optimal second-order super nested array (SNA) by using the IOTLNA as the parent nested array, termed IOTLNA-SNA, which has the same physical aperture and the same uDOFs, as well as the IOTLNA. Numerical simulations demonstrate the better performance of the improved array configurations.
ER -
English
