IEEE Transactions on Antennas and Propagation最新文献_第9页

Midrange Radiative Wireless Power Transfer Based on the Improved Half-Fisheye Lens 基于改进半鱼眼镜头的中程辐射无线传输

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-02-11 DOI: 10.1109/TAP.2025.3538219

Yuzhen Lou;Yulong Xia;Hengyi Zhou;Shuhang Chen;Qi Zhu

{"title":"Midrange Radiative Wireless Power Transfer Based on the Improved Half-Fisheye Lens","authors":"Yuzhen Lou;Yulong Xia;Hengyi Zhou;Shuhang Chen;Qi Zhu","doi":"10.1109/TAP.2025.3538219","DOIUrl":"https://doi.org/10.1109/TAP.2025.3538219","url":null,"abstract":"An improved half-fisheye lens (HFL) is proposed to achieve efficient midrange radiative wireless power transfer (RWPT). First, the study analyzes the factors that impede the attainment of optimal power transfer efficiency (PTE) in a mirror-symmetric RWPT system composed of a pair of conventional HFLs under practical feeding conditions. Subsequently, the field distribution conditions requisite for achieving optimal PTE in the HFL-based RWPT system are derived. Guided by these conditions, a mirror-symmetric RWPT system comprising a pair of improved HFLs is designed to achieve optimal PTE under practical feeding conditions. The improved HFL consists of a redesigned HFL and a transition layer. The transition layer not only mitigates the impedance mismatch at the interface but also achieves a time-reversal symmetric field distribution required for optimal PTE. The redesigned HFL undergoes axial compression and refractive index distribution modification, thereby reducing the lens’s refractive index while maintaining its profile height. Finally, to validate the effectiveness of the proposed design, a midrange RWPT prototype based on the improved HFL is designed and fabricated. The experimental results show that the RWPT system based on the improved HFL can achieve a PTE of 41% at a transfer distance of <inline-formula> <tex-math>$d=8lambda $ </tex-math></inline-formula> when fed by a horn antenna, demonstrating a 70% PTE improvement compared to the RWPT system based on the conventional HFL.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 6","pages":"4075-4085"},"PeriodicalIF":4.6,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144219794","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

An Optimized Phase-Controlled Metasurface-Based Low-Profile Folded Transmitarray (FTA) Antenna 一种优化的相位控制超表面低轮廓折叠发射阵列（FTA）天线

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-02-10 DOI: 10.1109/TAP.2025.3538284

Sougata Chatterjee;Yashwant Gupta;Avirup Maulik;Somak Bhattacharyya

{"title":"An Optimized Phase-Controlled Metasurface-Based Low-Profile Folded Transmitarray (FTA) Antenna","authors":"Sougata Chatterjee;Yashwant Gupta;Avirup Maulik;Somak Bhattacharyya","doi":"10.1109/TAP.2025.3538284","DOIUrl":"https://doi.org/10.1109/TAP.2025.3538284","url":null,"abstract":"In this work, a low-profile wideband folded transmitarray (FTA) antenna has been reported in Ku-band. The proposed FTA has been designed by using phase-controlled 3-bit unit-cells (UCs) based subwavelength metasurface (MS) structure. To achieve the wideband response of the UCs, the generalized scattering matrix (GSM) method is used. Also, a low-profile differential V-shaped microstrip patch antenna (DVMPA) is designed as the FTA feed to achieve low cross-polar levels, and symmetrical pattern throughout the frequency range. Furthermore, the metaheuristic optimization algorithm incorporating particle swarm optimization (PSO) technique is used for the phase distribution of the transmitarray (TA) aperture for realizing wideband flat response with low sidelobe level (SLL) and constant aperture efficiency (AE) throughout the frequency band. The peak gain of the FTA antenna is 22.7 dBi with an AE of 42.5% by maintaining a reduced profile height-to-diameter ratio (<italic>H</i>/<italic>D</i>) of 0.13. Further, the 1 and 3-dB gain bandwidths (GBWs) are found to be 4.23 and 8.17 GHz, respectively, viz., 28.2% and 54.5% along with suppression of SLLs by over 18 dB throughout the band of operation; thereby offering significant performance improvement compared to its closest competitors. The proposed FTA antenna can be used in Ku-band radio astronomy, space communication, synthetic aperture radar (SAR), and other allied fields requiring high-directive antennas.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 5","pages":"3316-3321"},"PeriodicalIF":4.6,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918738","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

Analysis of High-Order Mutual Coupling Effect of Antenna Arrays Based on Infinitesimal Dipole Model 基于极小偶极子模型的天线阵列高阶互耦合效应分析

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-02-10 DOI: 10.1109/TAP.2025.3538283

Shunxi Lou;Sihao Qian;Shaofan Lian;Wei Wang;Hong Bao;Guojun Leng

引用次数: 0

TDOA Prior-Based Contrast Source Inversion for Microwave Ablation Zone Quantitative Imaging 基于TDOA先验对比源反演的微波消融区定量成像

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-02-10 DOI: 10.1109/TAP.2025.3538218

Hideaki Muramatsu;Shouhei Kidera

引用次数: 0

Whale Optimization Algorithm-Based Channel Parameter Estimation for Ranging Applications in Closely Spaced Multipath Environment 基于鲸鱼优化算法的信道参数估计，用于近间隔多径环境中的测距应用

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-02-07 DOI: 10.1109/TAP.2025.3537680

Zhiwei Liang;Yue Lyu;Wei Wang;Yisheng An

引用次数: 0

Radar Target HRRP Imitation Based on Nonperiodic Time-Coding Digital Metasurface 基于非周期时编码数字元表面的雷达目标HRRP仿真

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-02-07 DOI: 10.1109/TAP.2025.3537689

Jinxing Guo;Dongfang Guan;Zhen Liu;Shijian Yu;Hantao Xu;Panhe Hu;Peng You

引用次数: 0

All-Metallic-Metasurface-Based Wideband Dual Fabry–Perot Resonance Antenna Array With High Directivity and Polarization Purity 高指向性和极化纯度的全金属超表面宽带双法布里-珀罗谐振天线阵列

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-02-07 DOI: 10.1109/TAP.2025.3537688

Bruno Ferreira Gomes;Ashraf Uz Zaman;Jorge Ricardo Mejía-Salazar

{"title":"All-Metallic-Metasurface-Based Wideband Dual Fabry–Perot Resonance Antenna Array With High Directivity and Polarization Purity","authors":"Bruno Ferreira Gomes;Ashraf Uz Zaman;Jorge Ricardo Mejía-Salazar","doi":"10.1109/TAP.2025.3537688","DOIUrl":"https://doi.org/10.1109/TAP.2025.3537688","url":null,"abstract":"In recent years, the integration of metasurface concepts into antenna design has sparked a revolutionary breakthrough, yielding unprecedented advancements in directivity, bandwidth, radiation pattern, polarization, and beam shaping capabilities once thought unachievable. However, further enhancements are still necessary, particularly in terms of integrability and loss reduction, while simultaneously broadening the operational bandwidth and enhancing gain and directivity. In this work, we demonstrate that incorporating the gap-waveguide (GW) technology into the radiator section can be leveraged to improve bandwidth and directivity of antenna arrays, mimicking a dual perfect electric conductor–perfect magnetic conductor (PMC) Fabry–Perot (FP) resonant cavity. Importantly, our concept comprises an entirely metallic <inline-formula> <tex-math>$4 times 4$ </tex-math></inline-formula> metasurface-based antenna array, diverging from prior research that employed dielectric components in metasurface design. As a result, the measured bandwidth was around 21% (12–14.8 GHz) with a measured gain of up to 22.9 dBi. Furthermore, we implement GW technology in the feeding layer, directly coupling it to the radiating layer through slots, thereby optimizing the footprint.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 6","pages":"3692-3703"},"PeriodicalIF":4.6,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10878416","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144232119","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

Plasma-Assisted Checkerboard Metasurface With 55.4 dB Monostatic Radar Cross-Section (RCS) Reduction 具有55.4 dB单站雷达截面（RCS）降低的等离子体辅助棋盘超表面

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-02-07 DOI: 10.1109/TAP.2025.3537676

Jinwoo Jung;Changseok Cho;Jungje Ha;Shinjae You;Hyunsoo Lee;Cheonyoung Kim;Ilyoung Oh;Yongshik Lee

{"title":"Plasma-Assisted Checkerboard Metasurface With 55.4 dB Monostatic Radar Cross-Section (RCS) Reduction","authors":"Jinwoo Jung;Changseok Cho;Jungje Ha;Shinjae You;Hyunsoo Lee;Cheonyoung Kim;Ilyoung Oh;Yongshik Lee","doi":"10.1109/TAP.2025.3537676","DOIUrl":"https://doi.org/10.1109/TAP.2025.3537676","url":null,"abstract":"This work presents a pioneering approach that utilizes plasma as a high-loss substrate. By designing a checkerboard metasurface on the dielectric-barrier discharge (DBD) plasma substrate, the magnitude of waves reflected from the metasurface’s alternating tiles is effectively reduced. This improvement enhances tolerance to magnitude imbalance and enables more efficient destructive interference. The plasma-assisted checkerboard metasurface achieves an outstanding radar cross-section (RCS) reduction performance of up to 55.4 dB in the X-band for a plate with a <inline-formula> <tex-math>$200 times 200$ </tex-math></inline-formula> mm2 size experimentally, surpassing all previously reported methods. Theoretical analysis, simulations, and experimental findings align well, confirming the effectiveness of the proposed mechanism. This innovative use of plasma as a substrate, rather than a standalone medium, marks a significant departure from conventional plasma-based RCS reduction methods. This suggests the potential of plasma to push boundaries and create countless opportunities across a wide range of applications that can benefit from highly lossy substrates.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 4","pages":"2605-2614"},"PeriodicalIF":4.6,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800984","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

Reconfigurable Dual-Functional Reflective Polarization Converter Based on Liquid Crystal Terahertz Metasurfaces 基于液晶太赫兹超表面的可重构双功能反射偏振变换器

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-02-07 DOI: 10.1109/TAP.2025.3537176

Guangsheng Deng;Yongxiang Zhu;Qiang Zhang;Jun Yang;Ying Li;Zhiping Yin

{"title":"Reconfigurable Dual-Functional Reflective Polarization Converter Based on Liquid Crystal Terahertz Metasurfaces","authors":"Guangsheng Deng;Yongxiang Zhu;Qiang Zhang;Jun Yang;Ying Li;Zhiping Yin","doi":"10.1109/TAP.2025.3537176","DOIUrl":"https://doi.org/10.1109/TAP.2025.3537176","url":null,"abstract":"This communication presents a reconfigurable polarization converter based on the liquid crystal (LC) terahertz (THz) metasurface. The proposed structure shows unique ability in achieving the conversion from linearly polarized (LP) waves to selective cross-polarized waves or circularly polarized (CP) waves within a wide frequency range. Experimental results demonstrate that, within the frequency region of 318.0–375.6 GHz, the metasurface can achieve the conversion from LP waves to cross-polarized waves without external biasing. However, when a saturated biasing voltage of 8 V is applied, the y-LP waves can be converted to right-handed CP (RHCP) reflection waves. Similar phenomenon is observed for x-LP incidence, as the x-LP waves were converted to left-handed CP (LHCP) wave in reflection. Unlike previously reported single-function metasurface polarization converters, the proposed design offers a new approach for achieving wideband reconfigurable multifunctional polarization conversion with a cost-effective solution, opening up possibilities for its application in the field of THz sensing and communication.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 6","pages":"4164-4169"},"PeriodicalIF":4.6,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144219788","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

Maximizing Independent Channels and Efficiency in BTS Array Antennas via EM Degrees of Freedom 利用电磁自由度最大化BTS阵列天线的独立信道和效率

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-02-07 DOI: 10.1109/TAP.2025.3537682

Federico Puggelli;Bruno Biscontini;Enrica Martini;Stefano Maci

{"title":"Maximizing Independent Channels and Efficiency in BTS Array Antennas via EM Degrees of Freedom","authors":"Federico Puggelli;Bruno Biscontini;Enrica Martini;Stefano Maci","doi":"10.1109/TAP.2025.3537682","DOIUrl":"https://doi.org/10.1109/TAP.2025.3537682","url":null,"abstract":"Massive multiple-input multiple-output (M-MIMO) technology has significantly advanced base station antenna design by integrating many transceivers (TRs) within antenna arrays, thereby improving network capacity and enabling the effective handling of complex multiuser scenario; however, antenna theory and antenna parameters with relevant bounds have not been adapted to this new reality. To address this gap, we propose a theoretical framework aimed at emphasizing the maximum number of independent MIMO channels that an antenna can provide in a cell and compare it with the physical upper bounds, and the latter is provided by the degrees of freedom (DoFs) of the field in the same cell. This approach allows for the definition of novel figures of merit for the quantification of antenna array performance, and the individuation of design strategies targeting the maximization of the number of independent channels, the average efficiency, and the maximum average gain within a specific cell. By exploring the DoF of the electromagnetic (EM) field, we establish the physical upper bounds for system performance. To this end, this article details the embedded element patterns (EEPs), their related efficiency correlation matrix (ECM) and cell correlation matrix (CCM), and orthogonal field modes, discussing the practical implications of these concepts for MIMO systems. The findings underscore the significance of sophisticated antenna models in enhancing network capacity, efficiency, and reliability. This article contributes to the optimization of antenna arrays in the next-generation mobile networks.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 6","pages":"3444-3458"},"PeriodicalIF":4.6,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10878414","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144232118","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