IEEE Antennas and Wireless Propagation Letters最新文献_第4页

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

High-Gain and Small-Aperture Traveling-Wave Endfire Antenna Based on DSPSL Using Phase-Reversal Technique 基于相位反转技术的DSPSL高增益小孔径行波端射天线

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-02 DOI: 10.1109/LAWP.2025.3585262

Fuhong Pang;Leilei Liu;Lei Zhu;Guo Qing Luo

引用次数: 0

MIMO Antenna Array With a Randomized Arrangement of Elements Providing Specified Directional Properties 具有提供指定方向特性的随机单元排列的MIMO天线阵列

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-02 DOI: 10.1109/LAWP.2025.3585276

Maksim A. Stepanov;Vadim V. Artyushenko;Vadim S. Sokolov;Artemy A. Podkopaev

引用次数: 0

3-D-Metal-Printing Multibeam OAM-Generating Transmitarray With Dual-Layer I-Slot Grating Metasurface 基于双层i -槽光栅超表面的三维金属打印多波束oam生成发射阵列

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-02 DOI: 10.1109/LAWP.2025.3585608

Jiayu Rao;Guanghui Xu;Xingang Ren;Zhixiang Huang

引用次数: 0

Substrate Integrated Monopulse Leaky Horn Antenna 衬底集成单脉冲漏角天线

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-02 DOI: 10.1109/LAWP.2025.3585624

Cleofás Segura-Gómez;Lei Wang;Andrés Biedma-Pérez;Ángel Palomares-Caballero;Pablo Padilla

{"title":"Substrate Integrated Monopulse Leaky Horn Antenna","authors":"Cleofás Segura-Gómez;Lei Wang;Andrés Biedma-Pérez;Ángel Palomares-Caballero;Pablo Padilla","doi":"10.1109/LAWP.2025.3585624","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3585624","url":null,"abstract":"This letter presents a leaky horn antenna based on a substrate integrated waveguide (SIW) with monopulse performance. The proposed leaky horn antenna consists of two SIW leaky-wave antennas (LWAs) angularly separated to form the horn’s flaring. By properly designing this angular separation taking into account the main radiation direction of both LWAs, a flat wavefront is achieved in the leaky horn aperture. To provide the monopulse behavior to the SIW leaky horn, a hybrid coupler, and phase shifters are included in the feeding. Depending on the input port chosen on the hybrid coupler, the LWAs forming the leaky horn are fed in phase or counter-phase and generate the sum and difference radiation patterns. A prototype has been fabricated to validate the design. In the operating band, an impedance matching below −13.9 dB is achieved at both input ports with an isolation between ports better than 16.6 dB. The measured radiation patterns show a monopulse behavior with a proper agreement with the simulated results. The proposed leaky horn presents a depth of −25.8 dB (difference between the sum diagram and the difference in the boresight axis), a peak realized gain of 12.9 dBi, and a half-power beamwidth of 6.4° at 27.5 GHz.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"3183-3187"},"PeriodicalIF":4.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11066271","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144997979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Beamwidth Enhanced Broadband Dual-Polarized Magnetoelectric Dipole Antenna for 5G N78 Band 5G N78波段波束宽度增强宽带双极化磁电偶极子天线

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-02 DOI: 10.1109/LAWP.2025.3584835

Ruiqi Xing;Tao Wang;Wenbo Liu;Shuangyu Deng;Nan Zhang

{"title":"Beamwidth Enhanced Broadband Dual-Polarized Magnetoelectric Dipole Antenna for 5G N78 Band","authors":"Ruiqi Xing;Tao Wang;Wenbo Liu;Shuangyu Deng;Nan Zhang","doi":"10.1109/LAWP.2025.3584835","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3584835","url":null,"abstract":"A beamwidth-enhanced broadband dual-polarized magnetoelectric dipole antenna for 5G N78 band is proposed in this letter. The structure of the proposed antenna is novel compared with conventional magnetoelectric dipole antennas. It is composed of folded and slotted magnetoelectric dipoles at the bottom, folded and slotted electric dipoles in the middle, several metal columns, four parasitic patches on the top, two Γ-shaped feeding structures and a ground. Meanwhile, the impedance bandwidth of the antenna is improved by folding the electric dipoles and loading the metal columns, while the beamwidth and port isolation are enhanced by loading additional electric dipoles and slotting the magnetic dipoles, respectively. Four parasitic patches are placed at the top to improve impedance matching of the antenna. By measurement, the overlapped relative bandwidth of two ports is 36.5% (2.87 GHz to 4.15 GHz). When port 1 is excited, the maximum beamwidths in E-plane and H-plane are 211° and 126°, respectively. When port 2 is excited, the maximum beamwidths in E-plane and H-plane are 208° and 127°, respectively. Therefore, the antenna has a wide application prospect in the 5G base station.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"3149-3153"},"PeriodicalIF":4.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998022","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 Compact Dual-Band Dual-Polarized Antenna Using Nonuniform Metasurface and Mushroom Structures for Wi-Fi 7 Applications 用于Wi-Fi 7应用的非均匀超表面和蘑菇结构的紧凑型双频双极化天线

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-01 DOI: 10.1109/LAWP.2025.3583750

Hai Dang Le;Son Xuat Ta

{"title":"A Compact Dual-Band Dual-Polarized Antenna Using Nonuniform Metasurface and Mushroom Structures for Wi-Fi 7 Applications","authors":"Hai Dang Le;Son Xuat Ta","doi":"10.1109/LAWP.2025.3583750","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3583750","url":null,"abstract":"A dual-band dual-polarized antenna with compact size and high isolation is proposed for Wireless Fidelity (Wi-Fi) 7 applications. It employs a nonuniform metasurface and mushroom structures as the primary radiating elements for the dual-band operation. The metasurface is utilized for multiple resonances at the upper band, which are also loaded mushroom elements to generate the lower band. The radiators are coupled with two orthogonal microstrip lines through a crossed slot for the dual-polarized radiation. The slot is backed by a metallic cavity to reduce the back radiation. The final design with an overall size of <inline-formula><tex-math>$text{0.48} lambda _{L} times text{0.48} lambda _{L} times text{0.075} lambda _{L}$</tex-math></inline-formula> (<inline-formula><tex-math>$lambda _{L}$</tex-math></inline-formula> is the free-space wavelength at 2.37 GHz) yields a 10 dB return loss bandwidth of 2.37 GHz to 2.50 GHz and 5.02 GHz to 7.15 GHz and an isolation of <inline-formula><tex-math>$ge$</tex-math></inline-formula> 23 dB. Its operational bandwidth completely covers 2.4 GHz/5 GHz/6 GHz Wi-Fi bands. Moreover, the dual-band dual-polarized radiation is validated by far-field measurements, which result in a cross-polarization level of <inline-formula><tex-math>$leq -text{20}$</tex-math></inline-formula> dB and the peak gains of 5.2 dBi and 10.7 dBi at the lower and upper bands, respectively.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"3114-3118"},"PeriodicalIF":4.8,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998120","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 High Out-of-Band Suppression and Selective Filtering Patch Antenna 一种高带外抑制选择性滤波贴片天线

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-01 DOI: 10.1109/LAWP.2025.3584943

Jiaxing He;Aiting Wu;Zhihua Fang;Zhonghai Zhang;Pengquan Zhang;Wei Wang;Zhijian Wang

{"title":"A High Out-of-Band Suppression and Selective Filtering Patch Antenna","authors":"Jiaxing He;Aiting Wu;Zhihua Fang;Zhonghai Zhang;Pengquan Zhang;Wei Wang;Zhijian Wang","doi":"10.1109/LAWP.2025.3584943","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3584943","url":null,"abstract":"This letter presents a high-performance filtering antenna with enhanced out-of-band suppression, high selectivity, and a simple structure. The antenna is composed of a radiating patch on the top surface of the dielectric substrate and parasitic stubs on the underside of the substrate. By utilizing a triple-resonance mode, bandwidth is significantly enhanced. The low-frequency resonance mode is excited by etching a pair of symmetric L-shaped slots in the radiating patch. The mid-frequency resonance mode corresponds to the fundamental mode of the main radiating patch. The high-frequency resonance mode is generated by introducing a quarter-wavelength open-circuit rectangular stub beneath the dielectric substrate. Additionally, these two structures introduce radiation nulls at the edges of the low- and high-frequency bands, respectively. Additional T-shaped and U-shaped stubs improve band selectivity with radiation nulls at specific edges. The proposed filtering antenna has been constructed and tested. Testing reveals a −10 dB impedance bandwidth of 17.7% [(2.26 to 2.7) GHz], 8.14 dBi peak gain, the frequency selectivity exceeds 252 dB/GHz and an out-of-band gain below −10.5 dB.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"3159-3163"},"PeriodicalIF":4.8,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998143","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

Multiobjective Optimization of Antenna Inverse Design With Data Augmentation Based on K-Means-NN 基于K-Means-NN数据增强的天线逆设计多目标优化

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-01 DOI: 10.1109/LAWP.2025.3584825

Meng Wang;Shirui Yu;Jian Dong;Heng Luo;Chengwang Xiao

引用次数: 0