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

A Miniaturized Low-Pass Filtering Balun for Cross-Band Isolation Enhancement in Triple-Band Shared-Aperture Antenna Arrays 一种用于三波段共享孔径天线阵列跨带隔离增强的小型化低通滤波平衡器

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-08 DOI: 10.1109/LAWP.2025.3587296

Yikai Chen;Xiaochi Lu;Haotian Li;Shiwen Yang

{"title":"A Miniaturized Low-Pass Filtering Balun for Cross-Band Isolation Enhancement in Triple-Band Shared-Aperture Antenna Arrays","authors":"Yikai Chen;Xiaochi Lu;Haotian Li;Shiwen Yang","doi":"10.1109/LAWP.2025.3587296","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3587296","url":null,"abstract":"Shared-aperture antenna arrays are promising for the integration of multiple antenna array apertures in a limited space, ensuring sufficient frequency bandwidth and angular coverage. However, these arrays often suffer from serious cross-band coupling, leading to deterioration in radiation performance. This letter proposes a novel balun integrated with miniaturized open-circuited stubs. By cascading multiple quarter-wavelength open stubs and strategically bending them to fit the maximum width, the proposed balun introduces transmission zeros that provide filtering capability for electromagnetic interference from other frequency bands. An equivalent circuit model is then developed to facilitate the integration of the balun with the antennas. With the novel miniaturized filtering balun and the equivalent circuit model, a triple-band antenna array for the fifth-generation base stations is developed. A prototype is fabricated and measured to validate the effectiveness of the proposed approach. Measured results illustrate that the isolation between the low-band (0.69 GHz to 0.96 GHz) and middle-band (1.90 GHz to 2.70 GHz) is improved from 18.0 dB to 32.0 dB in the middle-band, and the isolation between the low-band and high-band (3.30 GHz to 3.90 GHz) is improved from 25.0 dB to 36.0 dB in the high-band.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"3248-3252"},"PeriodicalIF":4.8,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998039","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

Shaped Beampattern Synthesis of Planar Arrays With Fully Convolutional Networks 基于全卷积网络的平面阵列形波束图合成

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-08 DOI: 10.1109/LAWP.2025.3587273

Can Cui;Paolo Rocca;Andrea Massa

引用次数: 0

A Wideband Reconfigurable 2-Bit Transmitarray Antenna With Cross-Polarization Suppression 一种抑制交叉极化的宽带可重构2位发射阵列天线

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-08 DOI: 10.1109/LAWP.2025.3587290

Bingjie Xiang;Kwai-Man Luk

引用次数: 0

Large Frequency-Ratio Dual-Band Leaky-Wave Antenna With Low-Frequency Polarization Reconfiguration 低频极化重构的大频率比双带漏波天线

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-08 DOI: 10.1109/LAWP.2025.3587051

Daosheng Huang;Feng Liang;Bing-Zhong Wang

{"title":"Large Frequency-Ratio Dual-Band Leaky-Wave Antenna With Low-Frequency Polarization Reconfiguration","authors":"Daosheng Huang;Feng Liang;Bing-Zhong Wang","doi":"10.1109/LAWP.2025.3587051","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3587051","url":null,"abstract":"A dual-band leaky-wave antenna based on dual-mode microstrip transmission lines (MTLs) with a large frequency ratio of 3.4 is presented. By loading the periodic open microstrip branches, the MTL can operate on the quasi-TEM mode in microwave band and quasi-TE0.5,0 mode in millimeter-wave band, respectively. Rectangular parasitic patches with periodic arrangement are used to generate radiation in the microwave band. Comb slots are loaded on the parasitic patch to reduce the effect of the microwave radiation on millimeter-wave band, and it also excites the TM01 and TM10 modes of the rectangular parasitic patch at 10.3 GHz and 12.2 GHz, respectively, to achieve frequency-controlled polarization reconfigurability. Transverse slots are loaded on the dual-mode MTL to generate radiation in the millimeter-wave band. The fabricated antenna shows polarization reconfigurability in the frequency range of 9 GHz to 13 GHz. And the antenna can achieve a beam steering range of 58° (−40° to 18°) in the 9 GHz to 13 GHz and 38° (–42° to −6°) in the 32.6 GHz to 40 GHz.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"3228-3232"},"PeriodicalIF":4.8,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998311","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

Tri-Band Dual-Polarized Shared-Aperture Antenna Array for Base Station Applications 用于基站的三波段双极化共孔径天线阵列

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-07 DOI: 10.1109/LAWP.2025.3586763

Rui Wu;Chun-Rong Li;Fu-Chang Chen

引用次数: 0

Accelerated FDFD Method Based on GRHSS for Electromagnetic Analysis of Dispersive Media 基于GRHSS的色散介质电磁分析加速FDFD方法

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-04 DOI: 10.1109/LAWP.2025.3585856

Bin Zou;Zihao Ma;Lamei Zhang

引用次数: 0

A Slot-Coupling Stacked Patches Antenna in Package for a 64-Elements W-Band Phased Array 用于64元w波段相控阵的槽耦合堆叠贴片封装天线

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-04 DOI: 10.1109/LAWP.2025.3585955

Yikun Wang;Lejiang Zhao;Jiazhi Ying;Kaiqiang Zhu;Houjun Sun

引用次数: 0

Optimization of Reconfigurable Intelligent Surface Codebooks Using a Mutual Coupling Aware CNN Model of Scattered Fields 基于互耦感知散射场CNN模型的可重构智能表面码本优化

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-03 DOI: 10.1109/LAWP.2025.3585743

Yuanzhi Liu;Costas D. Sarris

{"title":"Optimization of Reconfigurable Intelligent Surface Codebooks Using a Mutual Coupling Aware CNN Model of Scattered Fields","authors":"Yuanzhi Liu;Costas D. Sarris","doi":"10.1109/LAWP.2025.3585743","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3585743","url":null,"abstract":"Digital reconfigurable intelligent surfaces (RISs) consist of unit cells that can operate in a finite number of discrete states, typically controlled by switching circuits. The selection of the state of each RIS cell, commonly referred to as the “codebook,” can be made similar to array design, assuming that the far field of the RIS is a weighted combination of the far fields of individual cells. However, the full-wave analysis of even a 1-bit RIS geometry reveals that mutual coupling between cells strongly affects the scattered fields of the RIS, creating a wide range of realizable scattering patterns. We show that a computationally efficient, mutual coupling aware model of RIS scattered fields (empowered by a convolutional neural network) enables the exploration of these patterns by an optimizer, to meet design objectives beyond those achievable by standard codebook optimization approaches. Moreover, we demonstrate the design of 1-bit RIS codebooks that are free of spurious (“quantization”) lobes—a problem that was previously resolved only by modifying the RIS unit cells, increasing their complexity.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"3188-3192"},"PeriodicalIF":4.8,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144997982","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

Analysis of Electromagnetic Angular Momentum in Circular Waveguides 圆波导中的电磁角动量分析

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-03 DOI: 10.1109/LAWP.2025.3585915

Xiangdong Xie;Chao Zhang

{"title":"Analysis of Electromagnetic Angular Momentum in Circular Waveguides","authors":"Xiangdong Xie;Chao Zhang","doi":"10.1109/LAWP.2025.3585915","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3585915","url":null,"abstract":"Angular momentum (AM) plays multiple critical roles in wireless communications and detection, whereas waveguides serve as a pivotal propagation environment. The electromagnetic (EM) waves propagating in waveguides carry coupled spin angular momentum (SAM) and orbital angular momentum (OAM), yet the specific OAM mode composition and SAM-OAM coupling relationship have not been fully resolved. Although prior studies have derived average OAM values carried by waveguide eigenmodes, the ambiguity persists due to infinite possible OAM state combinations that yield identical averages. This work addresses two critical gaps: first, it obtains the deterministic decomposition of OAM mode components, and second, it shows the explicit SAM-OAM coupling relationship of EM waves in circular waveguides. By analytically decomposing hybrid eigenmodes into left-handed and right-handed polarized components, this study reveals that each polarization component carries OAM with distinct topological charges. Moreover, consistency is demonstrated among the theory of this study, HFSS simulations, and prior research. As a result, this study establishes a theoretical foundation for angular momentum transmission in circular waveguides, which enables applications in OAM multiplexing and quantum communications.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"3203-3207"},"PeriodicalIF":4.8,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144997146","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

EBG-Integrated Hexagonal Waveguides for Enhanced EMI Suppression in Extended C-Band Applications 扩展c波段应用中增强EMI抑制的ebg集成六角形波导

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-03 DOI: 10.1109/LAWP.2025.3585776

Tunç Murat İlgar;Birsen Saka

{"title":"EBG-Integrated Hexagonal Waveguides for Enhanced EMI Suppression in Extended C-Band Applications","authors":"Tunç Murat İlgar;Birsen Saka","doi":"10.1109/LAWP.2025.3585776","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3585776","url":null,"abstract":"This letter presents a novel application of hexagonal electromagnetic bandgap (EBG) structures—each occupying a unit cell area of 2.1 cm<inline-formula><tex-math>$^{2}$</tex-math></inline-formula>—to suppress electromagnetic interference while preserving airflow in enclosures used for C-band satellite communication at ground stations. Focusing on the extended C band around 4.7 GHz, the proposed design achieves 43 dB suppression at the targeted downlink frequency, effectively shielding sensitive electronics, such as high-performance c omputing systems, even with mandatory ventilation apertures. Unlike prior EBG studies that primarily address antenna or planar electronic designs, this work integrates EBG cells into hexagonal ventilation apertures, forming waveguide-like passages—a concept not previously explored. This approach simultaneously meets the critical requirements of electromagnetic interference (EMI) mitigation and adequate thermal management for satellite ground stations operating within the extended C-band spectrum. The design was validated through simulations in CST Microwave Studio and free-space measurements within an anechoic chamber, yielding strong agreement between theoretical and experimental results. Overall, the proposed EBG-based solution offers a practical and effective means of improving EMI control in extended C-band satellite communication enclosures without compromising ventilation requirements.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"3193-3197"},"PeriodicalIF":4.8,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998084","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