Enhancing Electromagnetic Backscattering Responses for Target Detection in the Near Zone of Near-Field-Focused Phased Array Antennas

被引：8
|
作者：
Chou, Hsi-Tseng [1 ]
Gao, Wen-Jin [2 ]
Zhou, Jianhua [2 ]
You, Baiqiang [2 ]
He, Xian-Hui [2 ]
机构：
[1] Natl Taiwan Univ, Grad Inst Commun Engn, Taipei 10617, Taiwan
[2] Xiamen Univ, Natl Model Microelect Coll, Sch Elect Sci & Engn, Xiamen 361005, Peoples R China
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2021年 / 69卷 / 03期
关键词：
Noise measurement; Scattering; Estimation; Object detection; Antenna arrays; Backscatter; array excitation; near-field (NF) focus radiation; radar cross section (RCS); scattering field maximization; steepest ascent method; target detection;
D O I：
10.1109/TAP.2020.3026878
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The analysis of electromagnetic (EM) scattering from a target located in the near zone of an electrically large near-field-focused (NFF) array of antennas is presented. The analysis first examined the EM scattering from a metal sphere, attempting to create a reference for comparison with other targets in a fashion analogous to conventional far-field analysis of radar cross section (RCS). Realistic targets were afterward examined and analyzed to exhibit their RCS characteristics. A numerical simulation-based maximization of EM scattering fields for effective target detection in the near zone of antenna was developed, which allows one to obtain a set of optimum element excitation weightings by applying the steepest ascent method (SAM). RCS phenomena were validated by full-wave simulations and experimental measurements to justify the feasibility of the proposed concept.
引用
收藏
页码：1658 / 1669
页数：12
相关论文
共 50 条
  • [1] Near-Field-Focused Microwave Antennas Near-field shaping and implementation
    Nepa, Paolo
    Buffi, Alice
    IEEE ANTENNAS AND PROPAGATION MAGAZINE, 2017, 59 (03) : 42 - 53
  • [2] Miniaturized near-field-focused antenna array
    Li, Yinuo
    Chen, Juan
    Li, Jianxing
    JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS, 2023, 37 (18) : 1509 - 1521
  • [3] Impact on focal parameters for near-field-focused aperture antennas
    Wang, Weimin
    Gao, Huaqiang
    Wu, Yongle
    Liu, Yuanan
    INTERNATIONAL JOURNAL OF NUMERICAL MODELLING-ELECTRONIC NETWORKS DEVICES AND FIELDS, 2020, 33 (04)
  • [4] Design of A Near-Field-Focused Substrate Integrated Planar Array Antenna
    Wang, Lei
    Cheng, Yu Jian
    Xue, Fei
    2014 9TH EUROPEAN MICROWAVE INTEGRATED CIRCUIT CONFERENCE (EUMIC), 2014, : 568 - 571
  • [5] Design of A Near-Field-Focused Substrate Integrated Planar Array Antenna
    Wang, Lei
    Cheng, Yu Jian
    Xue, Fei
    2014 44TH EUROPEAN MICROWAVE CONFERENCE (EUMC), 2014, : 1512 - 1515
  • [6] Performance Analysis and Design Considerations of the Near-Field-Focused Rotman Lens Antennas
    Otman, Salem M.
    Kuşaf, Mehmet
    Öztoprak, Abdullah Y.
    Applied Computational Electromagnetics Society Journal, 2024, 39 (06): : 470 - 477
  • [7] Measuring the characteristics of backscattering of sound on a rough surface in the near-field zone of a phased array
    M. B. Salin
    O. A. Potapov
    B. M. Salin
    A. S. Chashchin
    Acoustical Physics, 2016, 62 : 74 - 88
  • [8] Measuring the characteristics of backscattering of sound on a rough surface in the near-field zone of a phased array
    Salin, M. B.
    Potapov, O. A.
    Salin, B. M.
    Chashchin, A. S.
    ACOUSTICAL PHYSICS, 2016, 62 (01) : 74 - 88
  • [9] Beam Steering Technology of Near-field Focused Phased Array of Antennas for RFID Applications
    Chang, Chen-Yi
    Chou, Hsi-Tseng
    Tsai, Zong-Chen
    Lee, Ming-Yu
    Yu, Chien-Te
    2018 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP), 2018,
  • [10] Near-field alignment of phased-array antennas
    Patton, WT
    Yorinks, LH
    IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1999, 47 (03) : 584 - 591
12345