IEEE Transactions on Antennas and Propagation最新文献_第8页

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

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-01-20 DOI: 10.1109/TAP.2024.3519844

引用次数: 0

IEEE Transactions on Antennas and Propagation Publication Information IEEE天线与传播学报出版信息

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-01-20 DOI: 10.1109/TAP.2024.3519841

引用次数: 0

On the Improvement of the Performance of Inexpensive Electromagnetic Skins by Means of an Inverse Source Design Approach 用反源设计方法提高廉价电磁蒙皮性能的研究

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-01-20 DOI: 10.1109/TAP.2025.3529203

Giacomo Oliveri;Francesco Zardi;Andrea Massa

{"title":"On the Improvement of the Performance of Inexpensive Electromagnetic Skins by Means of an Inverse Source Design Approach","authors":"Giacomo Oliveri;Francesco Zardi;Andrea Massa","doi":"10.1109/TAP.2025.3529203","DOIUrl":"https://doi.org/10.1109/TAP.2025.3529203","url":null,"abstract":"A new methodology for the improvement of the performance of inexpensive static passive electromagnetic skins (SP-EMSs) is presented. The proposed approach leverages on the nonuniqueness of the inverse source (IS) problem associated with the SP-EMS design by decomposing the induced surface current into preimage (PI) and null-space (NS) components. Successively, the unknown EMS layout and NS expansion coefficients are determined by means of an alternate minimization of a suitable cost function. This latter quantifies the mismatch between the ideal surface current, which radiates the user-defined target field, and that actually induced on the EMS layout. Results from a representative set of numerical experiments, concerned with the design of EMSs reflecting pencil-beam as well as contoured target patterns, are reported to assess the feasibility and the effectiveness of the proposed method in improving the performance of inexpensive EMS realizations. The measurements on an EMS prototype, featuring a conductive ink pattern printed on a standard paper substrate, are also shown to prove the reliability of the synthesis process.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 5","pages":"3284-3295"},"PeriodicalIF":4.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918741","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

Microwave, mm and THz Imaging and Sensing Systems and Technologies for Medical Applications 微波，毫米和太赫兹成像和传感系统和技术的医疗应用

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-01-20 DOI: 10.1109/TAP.2024.3519848

引用次数: 0

Institutional Listings 机构清单

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-01-20 DOI: 10.1109/TAP.2024.3519846

引用次数: 0

Systematic and Accurate Method to Model Dielectric Stratifications in Artificial Dielectric Layers 系统而准确地模拟人工介电层中介电分层的方法

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-01-20 DOI: 10.1109/TAP.2025.3529196

Roderick G. Tapia Barroso;Daniele Cavallo

引用次数: 0

Fast SCFBP Algorithm for GPR-SAR Imaging Integrated With Underground Medium Permittivity Inversion 结合地下介质介电常数反演的GPR-SAR成像快速SCFBP算法

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-01-20 DOI: 10.1109/TAP.2025.3529777

Song Zhou;Ming Shi;Min Bao;Zao Wang;Mengdao Xing;Pin Wen

{"title":"Fast SCFBP Algorithm for GPR-SAR Imaging Integrated With Underground Medium Permittivity Inversion","authors":"Song Zhou;Ming Shi;Min Bao;Zao Wang;Mengdao Xing;Pin Wen","doi":"10.1109/TAP.2025.3529777","DOIUrl":"https://doi.org/10.1109/TAP.2025.3529777","url":null,"abstract":"Due to the complex detection environment of ground-penetrating radar (GPR), time-domain algorithm (TDA) can accurately accommodate the wave path variations in layered medium, which presents significant potentials to achieve high focusing quality for GPR-synthetic aperture radar (GPR-SAR) imaging. However, the current TDAs will involve huge interpolation operations and bring redundant computational burden in the processing, which will inevitably degrade the algorithm performance. In this article, a fast subsurface Cartesian factorized back-projection (SCFBP) algorithm is proposed for GPR-SAR imaging, where the sub-image spectrum properties of the layered medium are investigated particularly and a two-step spectrum compression is developed according to the permittivity. As the sub-image spectrums are effectively aligned and compressed, only a very low Nyquist sampling rate (NSR) is required for the noninterpolated sub-image merging process, which will dramatically decrease the computational burden to achieve high performance both in efficiency and accuracy. Moreover, the inaccurate permittivity of the underground medium is particularly considered in GPR-SAR applications. By establishing the mapping relationship between the inaccurate permittivity of the underground medium and the introduced phase error in the imaging process, a fast echo-based compensation is developed with SCFBP, which can effectively eliminate the effects of the inaccurate permittivity on the imaging quality and accurately invert the permittivity of the underground medium for subsequent medium classification and identification. Promising results from both simulation and raw data experiments are presented and analyzed to validate the performance advantages of the proposed algorithm.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 5","pages":"3296-3309"},"PeriodicalIF":4.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918742","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-Scattering Broadband Phased Array With Polarization-Selective Metasurface Using Characteristic Mode Analysis 基于特征模分析的偏振选择性超表面低散射宽带相控阵

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-01-20 DOI: 10.1109/TAP.2025.3529178

Yi Qi;Feng Yang;Kejin Chen;Yikai Chen;Jun Hu;Shiwen Yang

{"title":"Low-Scattering Broadband Phased Array With Polarization-Selective Metasurface Using Characteristic Mode Analysis","authors":"Yi Qi;Feng Yang;Kejin Chen;Yikai Chen;Jun Hu;Shiwen Yang","doi":"10.1109/TAP.2025.3529178","DOIUrl":"https://doi.org/10.1109/TAP.2025.3529178","url":null,"abstract":"Based on periodic characteristic mode analysis (PCMA), a low-scattering broadband phased array with polarization-selective metasurface (PSM) is proposed. By adjusting the characteristic modes that dominate the reflection phase under cross-polarized normal incident waves, two types of array elements with comparable radiation characteristics but a 180° reflection phase difference are developed. The PSM structure is systematically designed based on the analysis of modal currents and modal significances, involving elongated rectangular patches and dielectric layers. Two broadband phased arrays, namely, the proposed array and the reference array, are developed. Both antenna arrays are designed to operate within the 6–18-GHz frequency range and achieve scanning capabilities of up to 60° in the E-/H-planes. Prototypes of the proposed and reference arrays are fabricated and measured. The results obtained from both the measurements and simulations confirm the effectiveness of the low-scattering antenna array design, thereby verifying the practicality of PCMA. Compared to the reference array, the proposed array achieves more than 10 dB monostatic radar cross section (RCS) reduction in both in-band (6–18 GHz) and out-of-band (18–24 GHz) frequency ranges without any loss in gain.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 5","pages":"2979-2989"},"PeriodicalIF":4.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143925092","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-Spacing Periodic Beam Scanning Arrays With Dynamic Coupling Elements for Grating Lobe Suppression 具有动态耦合元件的大间距周期性波束扫描阵列用于光栅瓣抑制

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-01-20 DOI: 10.1109/TAP.2025.3529187

Yu Zeng;Xiao Ding;Filippo Costa;Giuliano Manara;Simone Genovesi

引用次数: 0

A Broadband Circularly Polarized Patch Antenna Array With Oblique Beam for Satellite Wide Scanning Coverage Applications 用于卫星宽扫描覆盖的斜波束宽带圆极化贴片天线阵列

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-01-20 DOI: 10.1109/TAP.2025.3529192

Feng Fang;Lei Xing;Xiang Zhang;Yongjiu Zhao;Wenjun Xia;Wenjun Qi;Qian Xu

{"title":"A Broadband Circularly Polarized Patch Antenna Array With Oblique Beam for Satellite Wide Scanning Coverage Applications","authors":"Feng Fang;Lei Xing;Xiang Zhang;Yongjiu Zhao;Wenjun Xia;Wenjun Qi;Qian Xu","doi":"10.1109/TAP.2025.3529192","DOIUrl":"https://doi.org/10.1109/TAP.2025.3529192","url":null,"abstract":"A circularly polarized (CP) patch antenna array with an oblique beam is proposed, which can effectively broaden the satellite-ground communication link area as the satellite rotates mechanically. The array consists of six subarrays with 12 antenna elements, covering the typical L1 frequency band of Global Navigation Satellite Systems (GNSSs) from 1.544 to 1.615 GHz. Three main issues are mainly addressed, including the array axis-ratio (AR) bandwidth enhancement, the array tilted beam design, and the environment suitability in aerospace. The sequential feeding with a 90° phase shift is preferred in the subarray to improve the 3-dB AR bandwidth (ARBW). To realize a 30° oblique radiated beam with specified gains, the trust region framework-aided beamforming technique is applied to optimize the phase differences between adjacent subarrays. The high-temperature alumina ceramic and WL-CT300 dielectric substrates are integrated to extend the array working temperature from <inline-formula> <tex-math>$-50~^{circ }$ </tex-math></inline-formula>C to <inline-formula> <tex-math>$260~^{circ }$ </tex-math></inline-formula>C. Both simulations and measurements are conducted. It is demonstrated that the maximum realized gain is 10.56 dBi at 1.575 GHz, and the 3-dB ARBW is 110 MHz or 7% in fraction. The proposed CP patch antenna array shows excellent performance in terms of high gain, wide ARBW, lightweight, and environment suitability, making it a promising candidate for satellite wide scanning coverage applications.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 5","pages":"3388-3393"},"PeriodicalIF":4.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918737","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