IEEE Transactions on Antennas and Propagation最新文献_第10页

Effective Broadband RCS Reduction in Metasurfaces Through Composite Vortex Phase Modulation 复合涡旋相位调制对超表面宽带RCS的有效抑制

IF 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-10-01 Epub Date: 2026-06-26 DOI: 10.1109/TAP.2026.3705754

Mei-Qin Lv;Peng-Fei Gu;Zi He;Zhao-Long Li;Kwok Wa Leung;Meng-Meng Li;Da-Zhi Ding

{"title":"Effective Broadband RCS Reduction in Metasurfaces Through Composite Vortex Phase Modulation","authors":"Mei-Qin Lv;Peng-Fei Gu;Zi He;Zhao-Long Li;Kwok Wa Leung;Meng-Meng Li;Da-Zhi Ding","doi":"10.1109/TAP.2026.3705754","DOIUrl":"https://doi.org/10.1109/TAP.2026.3705754","url":null,"abstract":"Inspired by the concept of orbital angular momentum (OAM), this article introduces an innovative and effective technique for achieving broadband reduction of radar cross section (RCS) in metasurfaces. By introducing the controllable phase transition along the radial direction within the vortex phase distribution and combining this with the annular segmentation regions of the metasurface, the local manipulation of the beam intensity and topological mode distribution is realized, thereby generating composite vortex beams. These beams not only retain the phase singularity property, which contributes to a significant reduction in the RCS of the metasurface along the propagation axis, but also effectively redirect scattered energy into nonthreatening angular domains, thereby further reducing the bistatic RCS of the metasurface. Furthermore, the Pancharatnam–Berry (PB) phase is utilized to encode the phase profile of the metasurface, and this phase is only related to the rotation angle of the unit cells, thereby enabling the composite vortex metasurface to exhibit broadband response characteristics. Simulation and experimental results demonstrate that, within the frequency range of operation from 12.3 to 23.8 GHz, the designed metasurface achieves monostatic and bistatic RCS reduction values exceeding 10 dB under normal incidence of plane waves with either circular polarization or linear polarization. Additionally, when the plane wave is incident at an oblique angle less than 45°, the metasurface retains a good performance of RCS reduction.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 10","pages":"9858-9870"},"PeriodicalIF":5.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149133611","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

Institutional Listings 机构清单

IF 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-10-01 Epub Date: 2026-10-09 DOI: 10.1109/TAP.2026.3737351

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 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-10-01 Epub Date: 2026-10-09 DOI: 10.1109/TAP.2026.3737325

引用次数: 0

Wideband Dual-Polarized Metasurface Antenna With Fan Beams for Outdoor Wi-Fi Applications 用于室外Wi-Fi应用的带风扇波束的宽带双极化超表面天线

IF 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-09-01 Epub Date: 2026-06-26 DOI: 10.1109/TAP.2026.3705762

Hanchen Gan;Yubo Wen;Kun Wu;Y. Jay Guo;Pei-Yuan Qin

{"title":"Wideband Dual-Polarized Metasurface Antenna With Fan Beams for Outdoor Wi-Fi Applications","authors":"Hanchen Gan;Yubo Wen;Kun Wu;Y. Jay Guo;Pei-Yuan Qin","doi":"10.1109/TAP.2026.3705762","DOIUrl":"https://doi.org/10.1109/TAP.2026.3705762","url":null,"abstract":"This article presents a miniaturized, high-gain antenna array that generates ±45° polarized fan beams across the 5.15–6.21 GHz band for outdoor Wi-Fi applications. The antenna structure consists of a patch antenna followed by two cascaded metasurfaces (MTSs), specifically arranged from the feed port upward as a patch antenna, MTS-A, and MTS-B. The patch antenna produces ±45° polarized fields; MTS-A simultaneously enhances the bandwidth and the gain, while MTS-B broadens the horizontal beamwidth. Spectrum analysis of the aperture fields reveals that, in this design, beam broadening arises from energy redistribution. A prototype was designed, fabricated, and measured. Both simulation and measurement results confirm the generation of a fan beam in the horizontal direction—the array’s narrow dimension—and a narrow beam in the vertical direction. The horizontal half-power beamwidth (HPBW) reaches <inline-formula> <tex-math>$102^{circ } ~pm ~7^{circ } $ </tex-math></inline-formula>, with an average gain of 15.3 dBi. Compared to conventional fan beam antennas, the proposed design achieves a broadband operation, high gains, and stable wide beamwidths within a very compact aperture, making it a promising solution for dual-polarized outdoor Wi-Fi applications.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 9","pages":"8563-8575"},"PeriodicalIF":5.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148961838","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-Profile K/Ka-Band Shared-Aperture Phased Array With High Isolation for LEO Satellite Communication 低轨道卫星通信高隔离低轮廓K/ ka波段共享孔径相控阵

IF 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-09-01 Epub Date: 2026-06-22 DOI: 10.1109/TAP.2026.3703508

Wen Yu;Junhui Ou;Jixiang Wan;Kai Zhang;Xu Yang;Yan Xi;Xiu Yin Zhang

{"title":"Low-Profile K/Ka-Band Shared-Aperture Phased Array With High Isolation for LEO Satellite Communication","authors":"Wen Yu;Junhui Ou;Jixiang Wan;Kai Zhang;Xu Yang;Yan Xi;Xiu Yin Zhang","doi":"10.1109/TAP.2026.3703508","DOIUrl":"https://doi.org/10.1109/TAP.2026.3703508","url":null,"abstract":"This communication presents a low-profile dual-circularly-polarized shared-aperture phased array with high isolation for K/Ka-band LEO satellite communication. To mitigate mutual coupling between shared-aperture antennas while preventing efficiency degradation, a distributed decoupling method is proposed, where frequency-selective filtering components are introduced into the antenna radiators, coupling structures, and feeding networks. These components are jointly designed to achieve high cross-band isolation with low in-band insertion loss. For K-band decoupling, the high-band (HB) antenna is loaded with shielding vias that form a back cavity and HB filtering stubs to generate two decoupling nulls. For Ka-band decoupling, the low-band (LB) antenna is loaded with T-shaped branches, a ring resonator, and LB filtering stubs at different layers to introduce three decoupling nulls. High cross-band isolation is realized through the superposition of these decoupling nulls in the K and Ka bands. The proposed shared-aperture antenna achieves cross-band isolation exceeding 38 dB over 19.6–21.2 GHz and 29.4–31 GHz, with an element profile of 1.9 mm, and the phased array supports wide-angle beam scanning up to <inline-formula> <tex-math>$boldsymbol {pm 60^{circ } }$ </tex-math></inline-formula> in both bands.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 9","pages":"8988-8993"},"PeriodicalIF":5.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148961844","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

Efficient Pattern Synthesis of Separable Cylindrical Antenna Array Employing Alternating Fast Segmented Cyclic Convolution and FFT 基于交替快速分段循环卷积和FFT的可分离圆柱天线阵有效方向图合成

IF 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-09-01 Epub Date: 2026-06-26 DOI: 10.1109/TAP.2026.3705819

Jialu Sun;Sihao Liu;Deqiang Yang;Junping Geng;Yanhui Liu

{"title":"Efficient Pattern Synthesis of Separable Cylindrical Antenna Array Employing Alternating Fast Segmented Cyclic Convolution and FFT","authors":"Jialu Sun;Sihao Liu;Deqiang Yang;Junping Geng;Yanhui Liu","doi":"10.1109/TAP.2026.3705819","DOIUrl":"https://doi.org/10.1109/TAP.2026.3705819","url":null,"abstract":"The synthesis of separable uniform cylindrical arrays (SUCAs) remains challenging because decomposing a target pattern into independent uniform linear array (ULA) and uniform circular array (UCA) components is ambiguous and undermines accurate control of the overall pattern. To overcome this, an alternating fast segmented cyclic convolution and fast Fourier transform (AFSCC-FFT) method is proposed. The method models an SUCA as an equivalent UCA with an iterative update element pattern incorporating the ULA factor and the basic element pattern. Thus, the transformations between array pattern and excitations are accelerated by performing inverse FFT (IFFT) and FFT for the ULA part, as well as performing fast segmented cyclic convolution (FSCC) and inverse FSCC for the equivalent UCA, achieving low computational complexity. Pattern constraints are achieved by developing an alternating pattern update strategy that iteratively updates the ULA and equivalent UCA patterns, jointly accounting for both subarray contributions to the total pattern, which effectively avoids amplitude and phase ambiguities used in conventional forced pattern decomposition. Numerical examples and full-wave simulations are conducted to validate the efficiency and accuracy of the proposed method, as well as its superiority over existing approaches.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 9","pages":"8550-8562"},"PeriodicalIF":5.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148961856","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 Unified Approach to Human-Scale Blockage and Scattering Analysis in Sub-THz Propagation With Application to RF Sensing 亚太赫兹传播中人类尺度阻塞和散射分析的统一方法及其在射频传感中的应用

IF 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-09-01 Epub Date: 2026-03-14 DOI: 10.1109/TAP.2026.3690188

Stefano Savazzi;Fabio Paonessa;Sanaz Kianoush;Alessandro Nordio;Giuseppe Virone

{"title":"A Unified Approach to Human-Scale Blockage and Scattering Analysis in Sub-THz Propagation With Application to RF Sensing","authors":"Stefano Savazzi;Fabio Paonessa;Sanaz Kianoush;Alessandro Nordio;Giuseppe Virone","doi":"10.1109/TAP.2026.3690188","DOIUrl":"https://doi.org/10.1109/TAP.2026.3690188","url":null,"abstract":"RF sensing exploits phase-sensitive measurements of stray electromagnetic (EM) fields from wireless devices across various frequency bands to detect EM blockage and to reconstruct and map the surrounding environment in 2-D/3-D. Although blockage effects caused by objects or human motion are well-studied in ISM bands and frequencies up to 60 GHz, there is a significant lack of research for frequencies above 100 GHz. The article proposes a unified signal-processing framework for RF sensing in the sub-THz D-band (105–175 GHz), explicitly integrating EM blockage and scattering as a single process through the birth-death dynamics of multipath components (MPCs). The framework extracts, associates, and classifies MPCs from angle-delay measurements using statistically grounded detection and classification, enabling human-scale sensing from a single radio link. The modeling and classification of MPCs, along with large-scale EM parameters, are demonstrated through an indoor measurement campaign using multiple test targets. Experimental results show that newly formed, attenuated, and suppressed MPCs can be reliably identified with millimeter-scale delay resolution. Static object localization achieves average positioning errors of 8–20 cm depending on range and material, while passive human localization yields errors of 12–17 cm at 0.5 m and 26–30 cm at 2 m, respectively. The proposed framework demonstrates that accurate sensing and localization are feasible at sub-THz frequencies using a single link.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 9","pages":"8760-8772"},"PeriodicalIF":5.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11520463","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148961859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Stochastic FCC-FDTD Method for Uncertainty Quantification of Electromagnetic Field in Biological Tissues 生物组织电磁场不确定度定量的随机FCC-FDTD方法

IF 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-09-01 Epub Date: 2026-04-24 DOI: 10.1109/TAP.2026.3685324

Boyan Cui;Guangzhi Chen;Xinsong Wang;Hanhong Liu;Yaru Zhang;Shunchuan Yang;Qiang Ren

{"title":"A Stochastic FCC-FDTD Method for Uncertainty Quantification of Electromagnetic Field in Biological Tissues","authors":"Boyan Cui;Guangzhi Chen;Xinsong Wang;Hanhong Liu;Yaru Zhang;Shunchuan Yang;Qiang Ren","doi":"10.1109/TAP.2026.3685324","DOIUrl":"https://doi.org/10.1109/TAP.2026.3685324","url":null,"abstract":"A stochastic face-centered cubic finite-difference time-domain (S-FCC-FDTD) method is proposed to calculate the mean and standard deviation of the electromagnetic fields in biological tissues, which takes into account the uncertainty and variability of the electrical properties of the media. To improve accuracy, the updating formulas for the mean and standard deviation fields are derived from the deterministic FCC-FDTD method by using the delta method. Due to the frequency-dependent properties of biological tissues, the dispersive S-FCC-FDTD method for the Debye model is also developed to solve problems involving dispersive media. To truncate the computational domain constructed by the S-FCC-FDTD method, the complex-frequency-shifted perfectly matched layer (CFS-PML) is designed for absorbing the standard deviation waves, which is derived from the existing CFS-PML for mean electromagnetic waves, and exhibits excellent absorption performance. Then, the stability of the S-FCC-FDTD method is analytically and numerically analyzed in detail. Three numerical examples, the pulse propagation in a fat medium and a multilayer human tissue, specific absorption rate (SAR) of an extremely complex head model are carried out to validate its performance. The numerical results demonstrate that the S-FCC-FDTD method has good accuracy and stability in the analysis of statistical variation, with broad applications in bioelectromagnetic effects.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 9","pages":"8617-8631"},"PeriodicalIF":5.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148961864","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

Modeling OTH Radar Sea Clutter in Range-Dependent Atmospheric Ducts 距离相关大气管道中OTH雷达海杂波建模

IF 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-09-01 Epub Date: 2026-06-08 DOI: 10.1109/TAP.2026.3699523

Yihao Xu;Yuqiang Zhang;Chen Zhou;Xiaofeng Zhao;Hao Cha;Bin Tian

{"title":"Modeling OTH Radar Sea Clutter in Range-Dependent Atmospheric Ducts","authors":"Yihao Xu;Yuqiang Zhang;Chen Zhou;Xiaofeng Zhao;Hao Cha;Bin Tian","doi":"10.1109/TAP.2026.3699523","DOIUrl":"https://doi.org/10.1109/TAP.2026.3699523","url":null,"abstract":"The accurate modeling of sea clutter for over-the-horizon (OTH) radar constitutes a classical multiscale physical problem, necessitating the precise coupling of kilometer-scale propagation links with meter-scale sea surface roughness characteristics. In order to remediate the physical inconsistencies engendered by the decoupled calculation of radio wave propagation and sea surface scattering in prevailing methodologies, this article puts forth a proposed integrated propagation-scattering physical simulation framework. The framework’s foundation is predicated on the implementation of a bidirectional propagation-scattering coupling mechanism, which integrates the propagation loss correction induced by sea surface roughness with a high-fidelity scattering kernel incorporating two-stage foam evolution and multipath effects into a unified framework. At the implementation level, a heterogeneous parallel architecture based on C++/CUDA is constructed, which effectively resolves the challenge of electromagnetic scattering calculation for massive time-varying sea surface facets. Using measured data from the South China Sea, the model’s validity in describing the statistical distribution and spectral characteristics of sea clutter is substantiated. Moreover, a series of numerical experiments is conducted based on this model to investigate the impact of range-dependent atmospheric ducts on the characteristics of long-range sea clutter. The simulation framework under consideration provides critical data support and a theoretical basis for the performance analysis of OTH radar systems and the development of high-precision atmospheric duct inversion algorithms.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 9","pages":"8890-8902"},"PeriodicalIF":5.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148961875","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 Sandwich-Like Dual-Band Shared-Aperture Dielectric Lens Antenna With Large Frequency Ratio and Wide Scanning Range 大频率比宽扫描范围的三明治状双频共孔径介质透镜天线

IF 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-09-01 Epub Date: 2026-06-05 DOI: 10.1109/TAP.2026.3698438

Yuntao Ye;Zhixi Liang;Shaoyong Zheng;Kwok Wa Leung

{"title":"A Sandwich-Like Dual-Band Shared-Aperture Dielectric Lens Antenna With Large Frequency Ratio and Wide Scanning Range","authors":"Yuntao Ye;Zhixi Liang;Shaoyong Zheng;Kwok Wa Leung","doi":"10.1109/TAP.2026.3698438","DOIUrl":"https://doi.org/10.1109/TAP.2026.3698438","url":null,"abstract":"A sandwich-like, dual-band shared-aperture (DBSA) dielectric lens antenna (DLA) configuration is proposed to realize a wide scanning range in the microwave (MW) and millimeter-wave (MMW) bands with a large frequency ratio. The configuration comprises three vertically stacked lens layers separated by air gaps. This layered structure spatially decouples the propagation regions: electromagnetic (EM) waves of the MW band propagate throughout the entire lens, whereas those of the MMW band are confined to the middle layer by the air gaps and frequency-selective metamaterials (MTMs) in the top and bottom layers. This decoupling fundamentally avoids severe modal interference. Moreover, this configuration allows the adoption of a heterogeneous MTM design with distinct periods across layers, reducing structural complexity and enhancing fabrication tolerance. Two prototypes were designed, fabricated, and measured for verification. The cylindrical DLA covers the 5.8 GHz ISM band and the n258 band (24.25–27.5 GHz), achieving a frequency ratio of 4.48:1 and a wide azimuthal scanning angle of ±77° in both bands. The spherical DLA is used to illustrate the configuration’s scalability in expanding the frequency ratio and scanning dimensions. Covering the 2.4 GHz ISM and n258 bands with an ultra-large frequency ratio of 10.61:1, it achieves an azimuthal scanning angle of ±55° in both bands and an elevational scanning angle of ±55° in the MW band.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 9","pages":"8256-8265"},"PeriodicalIF":5.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148961885","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