IEEE Transactions on Antennas and Propagation最新文献_第7页

Time-Varying Parametric Scattering Model Guided Network for Multidimensional Parameters Estimation of Dynamic Group Cone-Shaped Targets 时变参数散射模型引导网络用于动态群锥形目标的多维参数估计

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-28 DOI: 10.1109/TAP.2025.3562925

Shaoran Wang;Mengmeng Li;Yue Hu;Dazhi Ding

{"title":"Time-Varying Parametric Scattering Model Guided Network for Multidimensional Parameters Estimation of Dynamic Group Cone-Shaped Targets","authors":"Shaoran Wang;Mengmeng Li;Yue Hu;Dazhi Ding","doi":"10.1109/TAP.2025.3562925","DOIUrl":"https://doi.org/10.1109/TAP.2025.3562925","url":null,"abstract":"This article proposes a time-varying parametric scattering model guided network that estimates the multidimensional parameters of group cone-shaped targets. First, the time-varying parametric scattering model is extracted by an inverse parametric modeling method, which eliminates the false scattering centers (SCs), supplements the occluded SCs, and separates the overlapped scattering models of the dynamic group cone-shaped targets. The multiple scattering features of isolated targets are then reconstructed by the time-varying parametric scattering model. Second, a scattering model guided network that extracts the deep learning and physical features from the scattering features is proposed. The network is trained under physics-guided loss functions based on the time-varying ranges and micro-Doppler shifts of the time-varying parametric scattering model. Third, a cross-feature fusion block that adaptively fuses deep learning and physical features is designed. The target parameters are estimated from the fusion features through a fully connected (FC) layer. Finally, the effectiveness of the proposed method is evaluated through a simulation analysis.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 8","pages":"5839-5852"},"PeriodicalIF":5.8,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782117","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

Amplitude-Only Measurement Method of Complex Transmission Matrix for Multibeam Pattern Testing of Phased Array Antennas 相控阵天线多波束方向图测试中复杂传输矩阵的仅幅测量方法

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-28 DOI: 10.1109/TAP.2025.3562904

Huaqiang Gao;Xiaoming Chen;Fengchun Zhang;Wei Fan

{"title":"Amplitude-Only Measurement Method of Complex Transmission Matrix for Multibeam Pattern Testing of Phased Array Antennas","authors":"Huaqiang Gao;Xiaoming Chen;Fengchun Zhang;Wei Fan","doi":"10.1109/TAP.2025.3562904","DOIUrl":"https://doi.org/10.1109/TAP.2025.3562904","url":null,"abstract":"Multibeam pattern testing of phased array antenna under test (AUT) plays a crucial role in its beam-steering capability evaluation. Instead of measuring multiple steered beams sequentially in a time-consuming way, some fast multibeam test methods were presented in the literature by the synthesis of complex element patterns measured. However, the complex measurement of array element patterns is challenged by the integrated design of phased arrays and the susceptible phase measurement at millimeter-wave and terahertz frequencies. To address this issue, this article proposes an amplitude-only measurement method of a complex transmission matrix in a near-field setup. The rotating-element electric-field vector (REV) measurement is first conducted on the probe array side to obtain the relative transmission coefficients from AUT array to multiple probe branches. With one probe branch enabled each time, REV measurement is then conducted on AUT array side to obtain the relative transmission coefficients from multiple AUT element branches to a single probe branch. By combining the relative relationships above, the complex transmission matrix between AUT elements and probes is obtained, which is required to reconstruct the complex element patterns for multibeam pattern test of phased arrays. Besides, this article addresses the ambiguity issue of REV solutions by the postprocessing calculation on the original REV measurement data, without extra dedicated measurements for the solution distinction. In experimental validation, the complex transmission matrix measured by the proposed amplitude-only method is matched well with the reference complex measurement results, with a phase error within ±4°.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 8","pages":"5981-5992"},"PeriodicalIF":5.8,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144781954","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

3-D-Printed Wideband Dual-Polarized Hollow-Waveguide Antenna Array With Dual-Mode Back Cavity 三维打印双模后腔宽带双极化空心波导天线阵列

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-28 DOI: 10.1109/TAP.2025.3562915

Qingchun You;Lu Qian;Yi Wang

引用次数: 0

A Broadband Dual-Polarized Antenna With Pattern Reconfigurability for Multi-Tag Detection in Chipless RFID 无芯片RFID中多标签检测的可重构宽带双极化天线

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-25 DOI: 10.1109/TAP.2025.3562772

Fei-Peng Lai;Yen-Sheng Chen

{"title":"A Broadband Dual-Polarized Antenna With Pattern Reconfigurability for Multi-Tag Detection in Chipless RFID","authors":"Fei-Peng Lai;Yen-Sheng Chen","doi":"10.1109/TAP.2025.3562772","DOIUrl":"https://doi.org/10.1109/TAP.2025.3562772","url":null,"abstract":"Blind source separation (BSS) technology is employed to address anti-collision detection of frequency-coded chipless radio frequency identification (RFID) tags, where multiple mixed backscattering signals are required to be separated. To enable multi-tag detection in chipless RFID, the antenna is required to feature a broad impedance bandwidth, dual polarizations, wide half-power beamwidths (HPBWs), and, most importantly, pattern reconfigurability controlled electrically. To achieve these design goals simultaneously, a pattern reconfigurable antenna with 20 diverse patterns and 100 detection states is proposed over 2.06–6.37 GHz (120%). The proposed antenna is constructed as an antipodal Vivaldi topology, where various patterns are controlled by the switching of diodes. To validate its capability, the proposed antenna is applied to multi-tag detections for 5-bit chipless RFID over 2.0–5.0 GHz. When four chipless tags separated by only 6 mm are present, the proposed antenna can generate various beams to accommodate the number of tags, collecting mixed backscattering signals for the processing using independent component analysis (ICAs). Due to various samples collected with diversity, the mixed signals can be separated and identified into individual IDs, demonstrating the potential of the proposed antenna for multi-tag detection in chipless RFID applications.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 8","pages":"6008-6013"},"PeriodicalIF":5.8,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782002","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 Vector Helmholtz Electromagnetic Wave Propagator for Inhomogeneous Media 非均匀介质中的矢量亥姆霍兹电磁波传播器

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-25 DOI: 10.1109/TAP.2025.3562744

Laurence Keefe;Austin McDaniel;Max Cubillos;Ilya Zilberter;Timothy Madden

{"title":"A Vector Helmholtz Electromagnetic Wave Propagator for Inhomogeneous Media","authors":"Laurence Keefe;Austin McDaniel;Max Cubillos;Ilya Zilberter;Timothy Madden","doi":"10.1109/TAP.2025.3562744","DOIUrl":"https://doi.org/10.1109/TAP.2025.3562744","url":null,"abstract":"The vector electric field Helmholtz equation, containing cross-polarization terms, is factored to produce both pseudo-differential and exponential operator forms of a 3-D, one-way, vector, wave equation for propagation through inhomogeneous media. From this operator factorization, we develop a high-order approximate, vector Helmholtz propagator that correctly handles forward arc, high-angle scattering, and diffraction from inhomogeneities at all resolved length scales and seamlessly includes evanescent waves. Our implementation of the exponential operator form of the one-way propagator is discussed extensively. A rational approximation/partial fraction decomposition of the exponential operator converts the propagator into a moderate number of large, sparse, linear solves whose results are summed together at each step to advance the electric field in space. We use a new AAA-Lawson rational interpolant for this approximation, rather than the more common Padé expansions that have appeared in the seismic and ocean acoustics literature previously. GMRES is used to solve these large systems. A direct-solve, free-space propagation method proves to be an effective preconditioner for GMRES, but can also serve as a standalone propagator in homogeneous media. Scalar computational examples shown include plane-wave diffraction by a circular aperture and Gaussian beam propagation through sine-product and homogeneous refractive index fields. The sine-product example compares its results to that of paraxial propagation through the same media and demonstrates the substantial differences between these propagator paradigms when the scale of the inhomogeneities is of the order of the fundamental wavelength in the Helmholtz equation. We also examine the convergence of the homogeneous media beam results to fields generated by Clenshaw-Curtis (C-C) evaluation of the first Rayleigh-Sommerfeld integral for the same initial conditions.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 8","pages":"5823-5838"},"PeriodicalIF":5.8,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782156","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

K-/Ka-Band Shared-Aperture Integrated Phased Array for Satellite Ground Terminals 卫星地面终端的K / ka波段共享孔径集成相控阵

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-25 DOI: 10.1109/TAP.2025.3562755

Ke Li;Dixian Zhao;Zhihui Chen;Shan Jiang;Xinhui Wang;Xiaohu You

引用次数: 0

A 1-bit Broadband Reconfigurable Electromagnetic Surface With Switchable Modes of Reflection and Tunable Absorption 具有可切换反射模式和可调谐吸收模式的1位宽带可重构电磁表面

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-25 DOI: 10.1109/TAP.2025.3562770

Xuenan Ren;Jian Ren;Yuyang Lu;Kai-Da Xu;Zhong-Xun Liu;Yingzeng Yin;Ying Liu;Cheng-Xiang Wang

{"title":"A 1-bit Broadband Reconfigurable Electromagnetic Surface With Switchable Modes of Reflection and Tunable Absorption","authors":"Xuenan Ren;Jian Ren;Yuyang Lu;Kai-Da Xu;Zhong-Xun Liu;Yingzeng Yin;Ying Liu;Cheng-Xiang Wang","doi":"10.1109/TAP.2025.3562770","DOIUrl":"https://doi.org/10.1109/TAP.2025.3562770","url":null,"abstract":"In this communication, a broadband reconfigurable electromagnetic surface (REMS) with two switchable modes, reflective and tunable absorptive, is designed, simulated, and measured. The proposed structure is derived from a dipole antenna with a broadband characteristic. To further expand the bandwidth and maintain the element’s stability under oblique incidence, two pairs of slots are introduced. A p-i-n diode, located between the dipole’s two arms, facilitates 1-bit phase resolution, while the variable resistance of the p-i-n diode in its <sc>on</small>-state enables the tunable absorption mode of the REMS. Based on this design, a <inline-formula> <tex-math>$16times 16$ </tex-math></inline-formula> (256 elements) REMS was fabricated for validation. Measurement results revealed a 3-dB gain bandwidth of 56.4% featuring a beam-scanning capability covering ±60° for the reflective mode. Additionally, a tunable radar cross section reduction (RCSR) capacity ranging from 0 to −10 dB can be realized over 68.8% bandwidth for monostatic RCSR, and remains above 62% RCSR bandwidth under 15° and 30° oblique incidence. The proposed multifunctional REMS features additional adjustable absorbing capability over a wide bandwidth, demonstrating significant potential for applications in radar stealth and deception techniques.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 8","pages":"6032-6037"},"PeriodicalIF":5.8,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782005","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

Network-Based Design of Reactive Beamforming Metasurfaces 基于网络的被动波束成形超表面设计

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-25 DOI: 10.1109/TAP.2025.3562760

Malik Almunif;Faris Alsolamy;Anthony Grbic

引用次数: 0

Conformal Time-Modulated Metasurface With Customized Optical Transparency for Direction of Arrival Estimation 具有自定义光学透明度的共形时调制超表面，用于到达方向估计

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-24 DOI: 10.1109/TAP.2025.3560124

Fan Wu;Chang Ding;Zuntian Chu;Xinqi Cai;Ruichao Zhu;Jiafu Wang

{"title":"Conformal Time-Modulated Metasurface With Customized Optical Transparency for Direction of Arrival Estimation","authors":"Fan Wu;Chang Ding;Zuntian Chu;Xinqi Cai;Ruichao Zhu;Jiafu Wang","doi":"10.1109/TAP.2025.3560124","DOIUrl":"https://doi.org/10.1109/TAP.2025.3560124","url":null,"abstract":"Direction of arrival (DoA) estimation is critical for applications such as radar tracking and wireless communication; however, traditional methods are often constrained by high hardware costs and substantial computational demands. This study introduces a novel flexible and optically transparent time-varying phase-modulated metasurface that not only enables cost-effective DoA estimation but also offers conformability and optical-transparency, making it suitable for complex surfaces. Through simulations and experimental validation, the proposed metasurface demonstrates real-time and flexible control of the reflection phase of electromagnetic (EM) waves under both normal and oblique incidences. This capability generates discrete harmonic frequency components with varying frequency shifts and amplitudes. Furthermore, we propose an innovative method that leverages the unique amplitude characteristics of harmonic components as “EM fingerprint.” By constructing a predefined fingerprint library and utilizing correlation analysis, this method enables efficient and precise DoA estimation. Experimental results reveal that this method achieves subdegree accuracy, strong robustness to noise, and significantly reduced computational complexity compared to traditional multiple signal classification (MUSIC) algorithm. This approach addresses key challenges in scalability and adaptability, with potential applications in wearable devices, unmanned aerial vehicles (UAVs), and optical camouflage systems.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 8","pages":"5903-5913"},"PeriodicalIF":5.8,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782063","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

Bidirectional Dual-Port Quad-Mode Wideband In-Band Full-Duplex Transmit-Reflect-Array Antenna With High Aperture Efficiency for High-Throughput Communication Systems 用于高吞吐量通信系统的双向双端口四模宽带带内全双工高孔径效率发射-反射阵列天线

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-24 DOI: 10.1109/TAP.2025.3562062

Qiming Wang;Cheng Pang;Pengcheng Wang;Ari Sihvola;Jiaran Qi

{"title":"Bidirectional Dual-Port Quad-Mode Wideband In-Band Full-Duplex Transmit-Reflect-Array Antenna With High Aperture Efficiency for High-Throughput Communication Systems","authors":"Qiming Wang;Cheng Pang;Pengcheng Wang;Ari Sihvola;Jiaran Qi","doi":"10.1109/TAP.2025.3562062","DOIUrl":"https://doi.org/10.1109/TAP.2025.3562062","url":null,"abstract":"The operation mechanism and physical verification of the bidirectional dual-port quad-mode I-band full-duplex (IBFD) transmit-reflect-array (TRA) antenna are proposed in this article. This is the first IBFD array with bidirectional radiation capability and also the first TRA with IBFD functionality which actualizes the advantages of both the IBFD and TRA by a single radiation array. The proposed bidirectional IBFD TRA can theoretically double the throughput and quadruple the spectral reuse efficiency of the IBFD communication system equipped with it. The IBFD TRA is built by a bidirectional full-duplex array and two feeding horns positioned on both sides of the array. One horn connects the Tx chain and the other connects the Rx chain. The unit of the array is constructed by a bidirectional full-duplex quad-mode topology structure which has two orthogonal modes in both forward and backward directions. The orthogonal modes are used to build Tx and Rx channels in both directions which can greatly reduce the self-interference. Therefore, the simultaneous transmit and receive and Tx/Rx self-interference cancellation in both directions can be completed at the element level, avoiding interleave of the Tx and Rx, and a high aperture efficiency can be eventually achieved by arranging the proposed bidirectional unit into an array. To obtain the bidirectional scattering properties of the proposed unit, a semianalytical method is proposed based on equivalent-network-assisted Jones matric derivations. Furthermore, a bidirectional phase calculation procedure is proposed for quickly ascertaining the distributions of three phase-modulating variables. Finally, the proposed IBFD TRA is experimentally verified at Ku-band, realizing high figures of metrics, for example, bidirectional coverage, simultaneous transmit and receive, wide operating bandwidth, and high aperture efficiency.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 8","pages":"5523-5535"},"PeriodicalIF":5.8,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782000","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