IEEE Transactions on Antennas and Propagation最新文献

An Efficient Local-Time-Stepping Scheme for Discontinuous Galerkin Time Domain for Solving Multiscale Electromagnetic Problems 求解多尺度电磁问题的不连续伽辽金时域局部-时间步进算法

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-04-01 Epub Date: 2026-01-14 DOI: 10.1109/TAP.2026.3652321

Jia-Wei Qian;Wei-Dong Li;Zhi Hao Jiang;Guang-Yu Zhu;Wei Hong

引用次数: 0

A High Accuracy Modified FDTD (2, 4) Scheme With More Relaxed Stability Condition 具有更宽松稳定条件的高精度修正FDTD（2,4）格式

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-04-01 Epub Date: 2026-01-02 DOI: 10.1109/TAP.2025.3648153

Pengcheng Ren;Lei Kuang;Jianjun Gao;Qing Huo Liu

{"title":"A High Accuracy Modified FDTD (2, 4) Scheme With More Relaxed Stability Condition","authors":"Pengcheng Ren;Lei Kuang;Jianjun Gao;Qing Huo Liu","doi":"10.1109/TAP.2025.3648153","DOIUrl":"https://doi.org/10.1109/TAP.2025.3648153","url":null,"abstract":"A relaxed modified finite-difference time-domain (FDTD) (2, 4) scheme (RM24) is proposed to alleviate the Courant condition. Extending the Modified FDTD (2, 4) (M24) scheme, we incorporate third-degree spatial difference terms with fourth-order accuracy into the time-stepping formulas to relax the constraints of the Courant condition. Through the optimization of both the coefficients of the third-degree terms and the original coefficients in the M24 scheme, the global numerical dispersion error of the RM24 scheme is reduced to a minimum. For wideband applications, by selecting the above coefficients corresponding to an appropriate grid resolution while maintaining the spatial step size constant, the numerical dispersion error of the RM24 scheme can be further reduced within the operational frequency band. Numerical results demonstrate that the proposed RM24 scheme with large Courant numbers effectively ensures the numerical stability and low numerical dispersion characteristics, thereby enhancing its capability to efficiently achieve accurate results in long-time simulations and electrically large-scale scenarios.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 4","pages":"3758-3763"},"PeriodicalIF":5.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147696603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A DeepONet Framework for Enhanced Surrogate Modeling of Reconfigurable Intelligent Surfaces With Limited Data 有限数据下可重构智能曲面增强代理建模的DeepONet框架

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-04-01 Epub Date: 2026-01-01 DOI: 10.1109/TAP.2025.3648300

Kaiyuan Jin;Zhun Wei;Jingwei Zhang;Yunlin Zou;Hao Xie;Wen-Yan Yin

{"title":"A DeepONet Framework for Enhanced Surrogate Modeling of Reconfigurable Intelligent Surfaces With Limited Data","authors":"Kaiyuan Jin;Zhun Wei;Jingwei Zhang;Yunlin Zou;Hao Xie;Wen-Yan Yin","doi":"10.1109/TAP.2025.3648300","DOIUrl":"https://doi.org/10.1109/TAP.2025.3648300","url":null,"abstract":"Reconfigurable intelligent surfaces (RISs) have attracted significant attention due to their abilities to dynamically manipulate electromagnetic wave propagation. In this work, an efficient surrogate modeling framework based on an improved deep operator network (DeepONet) is proposed to predict the far-field radiation patterns of RIS, significantly reducing the reliance on computationally expensive full-wave simulations by online inferences. Specifically, the proposed architecture integrates a convolutional branch network to extract spatial features from RIS configurations and a multilayer perceptron (MLP)-based trunk network to encode angular information. Outputs of both networks are fused and passed through a decoder to generate accurate radiation pattern predictions. We verify the proposed framework on the RIS that employs a <inline-formula> <tex-math>$20,times, 20$ </tex-math></inline-formula> array of 1-bit controllable units, with binary states representing the <sc>on/off</small> conditions. It is shown that, compared to several state-of-the-art learning frameworks, the proposed model suggests superior prediction accuracy and training efficiency under limited data scenarios, offering a promising solution for fast and reliable RIS radiation pattern evaluation.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 4","pages":"3734-3739"},"PeriodicalIF":5.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147696645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low-Complexity Codebook Design for Near-Field Wideband Precoding and Its Experimental Validation 近场宽带预编码的低复杂度码本设计及其实验验证

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-04-01 Epub Date: 2026-01-12 DOI: 10.1109/TAP.2025.3650580

Zhiqiang Yuan;Zhuoran Zhou;Fengchun Zhang;Wei Fan

{"title":"Low-Complexity Codebook Design for Near-Field Wideband Precoding and Its Experimental Validation","authors":"Zhiqiang Yuan;Zhuoran Zhou;Fengchun Zhang;Wei Fan","doi":"10.1109/TAP.2025.3650580","DOIUrl":"https://doi.org/10.1109/TAP.2025.3650580","url":null,"abstract":"Massive multiple-input–multiple-output (MIMO) and millimeter-wave (mmWave) technologies leverage abundant spectrum and large antenna arrays with beamforming capabilities to overcome high propagation loss in sparse channels and enable high data rate wireless communications. However, the increased antenna aperture shifts electromagnetic propagation from the conventional far-field region into the near-field region, leading to performance degradation of traditional codebooks based on the far-field plane wave assumption. Meanwhile, wideband transmission in mmWave systems introduces a spatial-wideband effect that degrades the performance of traditional narrowband-based codebooks. In this communication, we propose a novel distance–frequency-invariant codebook, using mode excitation techniques to compensate for both near-field and wideband effects. For experimental validation, we conducted a measurement campaign in a hall with 20 users using an mmWave massive MIMO system. The results show that near-optimal rates can be achieved through beam training with low training overhead and no additional hardware cost. The proposed beam training framework can be directly implemented in mmWave massive MIMO systems to enhance beam management performance.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 4","pages":"3764-3769"},"PeriodicalIF":5.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147696605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IEEE Transactions on Antennas and Propagation Information for Authors IEEE天线与传播信息学报

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-04-01 Epub Date: 2026-04-08 DOI: 10.1109/TAP.2026.3674384

引用次数: 0

Emerging Materials and Enabling Technologies for Advancing Antenna Systems: From Design to Manufacturing 推进天线系统的新兴材料和使能技术：从设计到制造

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-04-01 Epub Date: 2026-04-08 DOI: 10.1109/TAP.2026.3674709

引用次数: 0

Institutional Listings 机构清单

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-04-01 Epub Date: 2026-04-08 DOI: 10.1109/TAP.2026.3674386

引用次数: 0

Distributed Antennas and Near-Field Applications for Future Wireless Systems 分布式天线和未来无线系统的近场应用

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-04-01 Epub Date: 2026-04-08 DOI: 10.1109/TAP.2026.3674707

引用次数: 0

Antenna Pattern Reconstruction in the Single-Cut Near-Field Multiprobe Setup Based on Power-Only Measurements 基于纯功率测量的单切口近场多探头天线方向图重建

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-04-01 Epub Date: 2026-01-28 DOI: 10.1109/TAP.2026.3655457

Siqi Duan;Weimin Wang;Le Yu;Yongle Wu;Wei Fan

{"title":"Antenna Pattern Reconstruction in the Single-Cut Near-Field Multiprobe Setup Based on Power-Only Measurements","authors":"Siqi Duan;Weimin Wang;Le Yu;Yongle Wu;Wei Fan","doi":"10.1109/TAP.2026.3655457","DOIUrl":"https://doi.org/10.1109/TAP.2026.3655457","url":null,"abstract":"Field transformation is an established near-field (NF) antenna measurement solution to reconstruct far-field (FF) antenna patterns with high accuracy and hence has been widely adopted. However, it suffers from long measurement time due to the requirement of collecting massive amounts of complex NF data over a closed sphere. The single-cut concept, which can reconstruct the key information of the device under test (DUT) based on the NF data measured on a specific cut, has been introduced to improve the efficiency. This communication proposes a power-only single-cut algorithm based on the spherical wave expansion (SWE), eliminating the requirement of phase measurement. The focus of our work is to determine the key parameters of the single-cut NF multiprobe setup based on power-only measurements, that is, the measurement distances, the probe angular spacing, and the probe angular range. The proposed algorithm along with the cost-effective multiprobe setup is validated through numerical simulations and experimental measurements, providing a highly efficient antenna testing solution for 5G and future antenna systems.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 4","pages":"3770-3775"},"PeriodicalIF":5.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147696556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Large-Scale Planar Array Near-Field Calibration Based on Plane Wave Spectrum Maclaurin Expansion 基于平面波谱麦克劳林展开的大规模平面阵列近场标定

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-04-01 Epub Date: 2026-01-26 DOI: 10.1109/TAP.2026.3655463

Yuanhua Tang;Zhengpeng Wang;Wei Fan;Xiaoming Chen;Steven Gao

{"title":"Large-Scale Planar Array Near-Field Calibration Based on Plane Wave Spectrum Maclaurin Expansion","authors":"Yuanhua Tang;Zhengpeng Wang;Wei Fan;Xiaoming Chen;Steven Gao","doi":"10.1109/TAP.2026.3655463","DOIUrl":"https://doi.org/10.1109/TAP.2026.3655463","url":null,"abstract":"This communication introduces a novel near-field calibration method for large-scale planar arrays. A novel signal model is developed by representing the plane wave spectrum (PWS) corresponding to the measured signals as a Maclaurin series expansion. By performing the Fourier transform of each polynomial term in this expansion, the measured signals can be expressed as a linear combination of the derivatives of the free-space scalar Green’s function. The initial excitations and Maclaurin coefficients are jointly estimated through iterative minimization of an evaluation function, which is defined by measuring the difference between the measured signals and the virtual signals computed using the proposed signal model. An alternating optimization strategy is employed to ensure fast and efficient convergence of the minimization process. A 6×9 planar array composed of rectangular open-ended open waveguides was calibrated at a measurement distance of 0.5 m using the proposed method, achieving a calibration error range of ±0.58 dB and ±4.9°. The calibration was conducted using probe measurements over approximately one-quarter of the AUT aperture, with a <inline-formula> <tex-math>$3 times 3$ </tex-math></inline-formula> uniformly spaced rectangular sampling grid within this scanning region. The obtained results validate the effectiveness of the proposed calibration method.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 4","pages":"3746-3751"},"PeriodicalIF":5.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147696644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0