IEEE Antennas and Wireless Propagation Letters最新文献_第2页

A Frequency-Agile and Wide-Scanning CRLH Leaky-Wave Antenna for Advanced Wireless Systems 一种用于先进无线系统的频率敏捷宽扫描CRLH漏波天线

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-02-14 DOI: 10.1109/LAWP.2025.3542297

Sajeev K F;Sujith Raman;Gopikrishna M

引用次数: 0

A Fast Exponential Analysis and Variable Projection-Based Method for Linear Array Synthesis 基于快速指数分析和变投影的线阵综合方法

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-02-13 DOI: 10.1109/LAWP.2025.3542191

Ramonika Sengupta;Ferre Knaepkens;Annie Cuyt;David S. Prinsloo;Thomas Schäfer;A. Bart Smolders

引用次数: 0

A 1-Bit Reconfigurable Transmitarray With Enhanced Cross-Polarization Discrimination 一种具有增强交叉极化分辨能力的1位可重构发射阵列

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-02-13 DOI: 10.1109/LAWP.2025.3541548

Chenyang Meng;Chang Fang;Yin Li;Guangyin Feng;Baiyang Liu;Sai-Wai Wong;Hao Chen

{"title":"A 1-Bit Reconfigurable Transmitarray With Enhanced Cross-Polarization Discrimination","authors":"Chenyang Meng;Chang Fang;Yin Li;Guangyin Feng;Baiyang Liu;Sai-Wai Wong;Hao Chen","doi":"10.1109/LAWP.2025.3541548","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3541548","url":null,"abstract":"A wideband 1-bit reconfigurable transmitarray (RTA) with low cross-polarization and 2-D beam-scanning capacity is proposed for X-band applications. Based on the patch antenna, an RTA element was designed with symmetrical on the top and bottom layers, each capable of 1-bit phase control. Slots placed on the patch structure impede cross-polarization currents, improving cross-polarization discrimination (XPD) by over 10 dB compared to unslotted designs. To further suppress the cross-polarization radiation level, a dual-layer phase coding scheme is proposed. It improves XPD by carefully selecting RTA element states and configuring the phase distribution for cross-polarization symmetric cancellation, achieving an average improvement of more than 5 dB across different beam scanning angles. Owing to the symmetry of the RTA element, the proposed RTA can be fed from either the top or bottom, improving XPD in both directions. An RTA consisting of a 15 × 15-element configuration and fed by a patch antenna is designed and fabricated to demonstrate the proposed scheme. The RTA exhibits a peak gain of 18.5 dBi at 9.5 GHz and demonstrates effective ±60° scanning coverage in both principal planes, achieving an XPD of 40 dB at the scanning angle of 0°.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 6","pages":"1517-1521"},"PeriodicalIF":3.7,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Exploring Algebraic Preconditioning of EFIE Matrices Arising From Higher Order Additive Singular Bases 探讨由高阶可加奇异基引起的EFIE矩阵的代数预处理

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-02-13 DOI: 10.1109/LAWP.2025.3541449

Bruno Carpentieri;Roberto D. Graglia;Paolo Petrini;Maurizio Tavelli

{"title":"Exploring Algebraic Preconditioning of EFIE Matrices Arising From Higher Order Additive Singular Bases","authors":"Bruno Carpentieri;Roberto D. Graglia;Paolo Petrini;Maurizio Tavelli","doi":"10.1109/LAWP.2025.3541449","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3541449","url":null,"abstract":"Currently there are no operator-dependent preconditioners (for example of the Calderón type) to handle matrices obtained using high-order singular vector bases. So this letter has a dual purpose. The first is to show that the electric field integral equation discretized by high-order singular bases can be quickly solved iteratively using special general-purpose algebraic preconditioners. The second is to demonstrate that the results obtained with the fast solver have the same accuracy as those obtained using classical direct solution methods. The algebraic preconditioner specifically considered here has been used elsewhere to efficiently solve problems with several million unknowns. Thus, in light of the dual purpose and without loss of generality, we use as benchmarks medium-sized test problems involving singular induced currents because, for these problems, the preconditioned solutions can be compared with those obtained by direct methods, which are notoriously unsuitable for solving very large, ill-conditioned problems. In particular, to demonstrate that our approach correctly models the singular behavior of fields in the near-field region, we report several numerical results for current components induced by plane waves on infinitely thin flat plates. On the edges of these plates, the current component parallel to the edges can be unlimited (i.e., going to infinity), while the component normal to the edges must vanish. This behavior is correctly modeled by our singular bases when necessary and is not corrupted by the fast solver, which demonstrates the effectiveness and robustness of the singular bases and the preconditioner used.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 6","pages":"1507-1511"},"PeriodicalIF":3.7,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 Low-Profile Wideband Patch Antenna With Consistent Radiation Patterns Based on Dual Antiphase Modes 基于双反相模式的低轮廓宽带一致辐射方向图贴片天线

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-02-13 DOI: 10.1109/LAWP.2025.3537215

Li Zuo;Zhixi Liang;Yunliang Long

引用次数: 0

A Triple-Mode Wideband Filtering Antenna With Planar Configuration by Combining One SIW Cavity and Two Half-Mode Patch Resonators 一个SIW腔和两个半模贴片谐振器组合的平面三模宽带滤波天线

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-02-13 DOI: 10.1109/LAWP.2025.3541540

Qianwen Liu;Chengyu Li;Lei Zhu;Yiming Tang;Wen-Jun Lu;Yun-Peng Lyu;Feng Huang

{"title":"A Triple-Mode Wideband Filtering Antenna With Planar Configuration by Combining One SIW Cavity and Two Half-Mode Patch Resonators","authors":"Qianwen Liu;Chengyu Li;Lei Zhu;Yiming Tang;Wen-Jun Lu;Yun-Peng Lyu;Feng Huang","doi":"10.1109/LAWP.2025.3541540","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3541540","url":null,"abstract":"In this letter, a triple-mode wideband filtering antenna with a planar configuration is presented. The designed antenna has a single substrate layer, which consists of one half-mode circular patch resonator, one half-mode rectangular patch resonator, and one rectangular substrate integrated waveguide (SIW) cavity, and it is fed through the conventional coaxial probe. On the basis of the field analysis, these three types of resonators are compactly integrated without disturbing the resonant properties of their dominant modes. Given this, three resonant modes of half-TM11, half-TM10, and TE11 are well generated, so as to form a widened operating band. Meanwhile, four radiation nulls are produced from far-field radiation cancellation with the increased radiation boundaries. For validation, a prototype antenna with a center frequency of 2.8 GHz is designed and fabricated. The measured results indicate that the proposed antenna achieves an improved fractional bandwidth of 15.7% under three in-band resonances. Besides, four radiation nulls created at 2.32 GHz, 3.22 GHz, 3.49 GHz, and 3.89 GHz in stopband effectively enhance the out-of-band suppression level. Moreover, low profile of 0.037<inline-formula><tex-math>$lambda _{0}$</tex-math></inline-formula> is also implemented.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 6","pages":"1512-1516"},"PeriodicalIF":3.7,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144205990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Design of Ka-Band Filter-Antenna Based on Characteristic Mode Theory Using Gap Waveguide Technology 基于间隙波导技术特征模理论的ka波段滤波天线设计

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-02-13 DOI: 10.1109/LAWP.2025.3541237

Xun Jiang;Shujun He;Tingting Zhang;Kexin Yang;Wenjie Feng;Yongrong Shi

引用次数: 0

Analysis of Coupling Coefficient Between Two UCA-OAM Antennas Based on Infinitesimal Dipole Modeling 基于无穷小偶极子模型的双UCA-OAM天线耦合系数分析

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-02-13 DOI: 10.1109/LAWP.2025.3541349

Jaehoon Jeong;Bang Chul Jung;Young Dam Kim

引用次数: 0

The Integrated Design of Broadband Frequency Selective Surface and Distributed Lightning Diversion Layer 宽带选频面与分布式避雷层的集成设计

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-02-13 DOI: 10.1109/LAWP.2025.3536778

Lingling Wang;Min Zhu;Xuedao Wang;Shaobin Liu;Yonggang Zhou;Zhengyu Huang;Xiangkun Kong;Shangchen Fu

引用次数: 0

Design of Angle-Selective Surface With Narrow-Angle Filtering for Variable Frequency 变频窄角滤波选角面设计

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-02-12 DOI: 10.1109/LAWP.2025.3540930

Yi Li;Yan Ma;Peng Ren;Baoyi Xu;Ruize Xu;Zheng Xiang

{"title":"Design of Angle-Selective Surface With Narrow-Angle Filtering for Variable Frequency","authors":"Yi Li;Yan Ma;Peng Ren;Baoyi Xu;Ruize Xu;Zheng Xiang","doi":"10.1109/LAWP.2025.3540930","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3540930","url":null,"abstract":"This letter proposes a design of angle-selective surface (ASS) with narrow-angle filtering for variable frequency. The proposed ASS structure is based on a dual-layer frequency-selective surface, where the unit cell comprises a single substrate and two metallic layers. This configuration enables resonant transmission at specific oblique angles while effectively blocking electromagnetic waves at other angles. Furthermore, an equivalent circuit model is employed to analyze the proposed structure, revealing the influence of oblique incidence on circuit parameters. The designed ASS demonstrates excellent transmission performance (<inline-formula><tex-math>${S_{21}} geq -1 text{ dB}$</tex-math></inline-formula>) within the angular ranges of 18<inline-formula><tex-math>$^{circ }$</tex-math></inline-formula> to 22<inline-formula><tex-math>$^{circ }$</tex-math></inline-formula> at 14.6 GHz and 28<inline-formula><tex-math>$^{circ }$</tex-math></inline-formula> to 31<inline-formula><tex-math>$^{circ }$</tex-math></inline-formula> at 14.05 GHz. To verify the effectiveness of the proposed design, a prototype was fabricated and measured, with the measured results exhibiting great consistency with the simulation results.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 6","pages":"1487-1491"},"PeriodicalIF":3.7,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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