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

M-Shaped Under-Bridge Feeding Method for a Low-Profile Dual-Band Dual-Polarized Antenna-on-Package in the 6G Upper Midband 6G中上频段低轮廓双频双极化封装天线的m型桥下馈电方法

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.2025.3585144

Jeongtaek Oh;Hyunjin Kim;Sucheoul Kim;Jaehyun Choi;Jihun Ha;Jungsuek Oh

{"title":"M-Shaped Under-Bridge Feeding Method for a Low-Profile Dual-Band Dual-Polarized Antenna-on-Package in the 6G Upper Midband","authors":"Jeongtaek Oh;Hyunjin Kim;Sucheoul Kim;Jaehyun Choi;Jihun Ha;Jungsuek Oh","doi":"10.1109/LAWP.2025.3585144","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3585144","url":null,"abstract":"A 2 <inline-formula><tex-math>$,times ,$</tex-math></inline-formula> 4 dual-feed antenna-on-package (AoP) for 6G upper midband supports high power and dual-polarization, with a compact structure enabling potential use in smartphones and dense multiple-input–multiple-output (MIMO) base stations. The dual-feed antenna element is designed considering dual-linear polarization and dual-band operation. Consequently, the proposed antenna can provide dual-band, achieving a –6 dB impedance bandwidth of 32.3% (9.77 GHz to 13.45 GHz), port-to-port isolation higher than –15 dB, and the envelope correlation coefficient lesser than 0.02. The 2<inline-formula><tex-math>$,times ,$</tex-math></inline-formula> 4 antenna array for a MIMO antenna is fabricated for the evaluation of radiation characteristics. The proposed antennas are measured and verified by vertical probing system. Each element was measured with –6 dB impedance bandwidth of over 6.83% in low band and 4.9% in high band. The measured gain of boresight is achieved to 6.45 dBi at 10.25 GHz, and 6.7 dBi at 12.7 GHz, and the measured envelope correlation coefficients are all less than 0.04 in the dual-bandwidth.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"3164-3168"},"PeriodicalIF":4.8,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998295","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 New Self-Decoupling Structure on Coupling Compensating Technique for MIMO Patch Antennas 一种新的MIMO贴片天线耦合补偿自耦结构

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-30 DOI: 10.1109/LAWP.2025.3584462

Tianqi Pei;Jianpeng Wang;Lei Zhu;Shangjun Jiang;Wen Wu

{"title":"A New Self-Decoupling Structure on Coupling Compensating Technique for MIMO Patch Antennas","authors":"Tianqi Pei;Jianpeng Wang;Lei Zhu;Shangjun Jiang;Wen Wu","doi":"10.1109/LAWP.2025.3584462","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3584462","url":null,"abstract":"In this letter, an effective self-decoupling solution for multiple-input–multiple-output (MIMO) patch antennas is proposed based on the capacitive and inductive coupling compensating technique. Initially, the coupling principles for the original coupled antenna array are studied, and the decoupling condition for two closely spaced patch antennas in the H-plane is obtained. Subsequently, a concise decoupling element composed of six pairs of shorting pins is developed. Herein, four pairs of shorting pins deployed at the corners of the patches aim to introduce additional inductive coupling to effectively suppress mutual coupling between adjacent antennas, whereas the remaining two pairs of shorting pins, together with the etched slots, are designated to introduce additional capacitive coupling and reduce the cross polarization. To verify the feasibility of the proposed self-decoupling scheme, prototypes of two-element patch antennas are respectively constructed and tested before and after applying the self-decoupling design. Results reveal that, in comparison with the coupled array, the isolation between two self-decoupled elements is improved from 10.5 dB to 17.5 dB at the center frequency of 4.85 GHz with an extremely close edge-to-edge separation of 0.007λ0. Furthermore, owing to the single-layer layout, the overall antenna profile is maintained at a relatively low height of 0.04λ0. Ultimately, the proposed decoupling scheme is also theoretically validated in three-element and E-plane arrays, demonstrating effective isolation enhancement for large-scale compact patch configurations.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"3129-3133"},"PeriodicalIF":4.8,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998210","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

An Aperture Efficiency Enhancement Method for Transmitarray Antenna by Exploiting Dual Metasurfaces Modulation 利用双超表面调制提高发射阵列天线孔径效率的方法

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-30 DOI: 10.1109/LAWP.2025.3584416

Gu-Ying Deng;Yun-Hua Zhang;Huo-Tao Gao;Xiu-Yin Zhang;Si-Yuan He

{"title":"An Aperture Efficiency Enhancement Method for Transmitarray Antenna by Exploiting Dual Metasurfaces Modulation","authors":"Gu-Ying Deng;Yun-Hua Zhang;Huo-Tao Gao;Xiu-Yin Zhang;Si-Yuan He","doi":"10.1109/LAWP.2025.3584416","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3584416","url":null,"abstract":"This letter presents a systematic method for improving the aperture efficiency (AE) of transmitarray antenna (TA) without increasing the profile through modulation of dual metasurface transmitarrays. The first metasurface transmitarray intercepts more energy from the feed source and redistributes the intercepted energy over the second transmitarray through phase modulation, thereby improving spillover and taper efficiencies simultaneously. The phase efficiency is improved through the modulation of second metasurface transmitarray. The method overcomes mutual constraint between spillover efficiency and taper efficiency in traditional TA with single metasurface TA (TA-SM). To demonstrate the effectiveness of the method, two TAs [termed as TA-SM and dual metasurface TA (TA-DM)] with identical focal-length-to-diameter (F/D) of 0.625 are designed, fabricated, measured, and compared. The TA-SM with single transmitarray is a traditional TA with optimal AE, and the TA-DM with dual transmitarrays is designed based on the proposed method. Finally, at 14 GHz, the TA-DM realizes peak AE of 67.8<inline-formula><tex-math>$%$</tex-math></inline-formula> with low profile (F/D=0.625) and achieves maximum AE improvement of 20.6<inline-formula><tex-math>$%$</tex-math></inline-formula> compared to TA-SM (realized AE of 47.2<inline-formula><tex-math>$%$</tex-math></inline-formula>). Besides, the TA-DM has 1 dB gain bandwidth of 22.9<inline-formula><tex-math>$%$</tex-math></inline-formula>. The proposed method is a good candidate for the design of high gain and low profile antenna in long-distance communication.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"3124-3128"},"PeriodicalIF":4.8,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144997997","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 Luneburg Lens-Inspired Flat Lens Antenna With High Gain via Reduced Reflection Loss 通过减少反射损耗实现高增益的Luneburg透镜启发平面透镜天线

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-30 DOI: 10.1109/LAWP.2025.3584045

Yang Gao;Zhong-Xun Liu;Haoyu Lei;Yue-Nian Chen;Yongtao Jia;Qiao Sun;Ying Liu

{"title":"A Luneburg Lens-Inspired Flat Lens Antenna With High Gain via Reduced Reflection Loss","authors":"Yang Gao;Zhong-Xun Liu;Haoyu Lei;Yue-Nian Chen;Yongtao Jia;Qiao Sun;Ying Liu","doi":"10.1109/LAWP.2025.3584045","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3584045","url":null,"abstract":"A discretized Luneburg lens-inspired (LL-inspired) flat lens antenna is proposed for high-gain applications. Traditional LL-inspired flat lens antennas usually suffer from the reflection loss that occurs during the transformation of spherical LLs (sLLs) into flat lenses via transformation optics. Based on cascaded transmission-line models, a concise discretizing formula is applied to adjust the dielectric distribution of the lens, enabling it to achieve wave impedance quasi-matching for reduced reflection loss. Utilizing this method, the proposed LL-inspired flat lens antenna realizes a gain enhancement of 0.8 dB at 5 GHz compared to reference cases, comparable to the ideal sLL antenna. Finally, a prototype of the proposed antenna was fabricated by 10-layered drilled substrates. The overall dimension of the prototype antenna is 2.67<italic>λ0 × 2.67<italic>λ0 × 1.67<italic>λ0 (<italic>λ0 at 5 GHz). Experimental results indicate that the prototype achieves a gain range of 17.68 dBi to 18.54 dBi over a frequency band of 4.7 GHz to 5.2 GHz, which shows good coincidence with simulated ones.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"3119-3123"},"PeriodicalIF":4.8,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998211","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

Unsupervised SVD-Based Correction of Antenna Measurements in Nonanechoic Environments 非消声环境下基于无监督奇异值分解的天线测量校正

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-30 DOI: 10.1109/LAWP.2025.3584521

Vorya Waladi;Adrian Bekasiewicz;Yingsong Li;Leifur Leifsson

引用次数: 0

Spin Decoupling–Tensor Holographic Impedance Hybrid Metasurface for Full-Space Circular Airy Beams 全空间圆形艾里光束的自旋去耦-张量全息阻抗混合超表面

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-26 DOI: 10.1109/LAWP.2025.3583719

Hui-Fen Huang;Xiao-Mei Lei

{"title":"Spin Decoupling–Tensor Holographic Impedance Hybrid Metasurface for Full-Space Circular Airy Beams","authors":"Hui-Fen Huang;Xiao-Mei Lei","doi":"10.1109/LAWP.2025.3583719","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3583719","url":null,"abstract":"In this letter, a spin decoupling phase gradient (SDPG)–tensor holographic impedance (THI) single-layer full-space hybrid metasurface (MTS) is developed, and the integrated THI and SDPG MTSs can be controlled independently. For example, full-space four circular Airy beams with high orbital angular momentum (OAM) mode purity (above 85%) are designed: (LHCP, <italic>l1 = 1, <italic>θ1 = 150°, <italic>ϕ1 = 0°, 36 GHz), (RHCP, <italic>l2 = −1, <italic>θ2 = 150°, <italic>ϕ2 = 180°, 36 GHz), (LP, <italic>l3 = 1, <italic>θ3 = 30°, <italic>ϕ3 = 0°, 12 GHz), (RHCP, <italic>l4 = −1, <italic>θ4 = 30°, <italic>ϕ4 = 180°, 12 GHz). The unique contributions of the letter are as follows: To the knowledge of the authors, for the first time, space wave modulation–surface wave modulation integrated full-space hybrid MTS is developed. THI-SDPG integrated MTS combines the advantages of SDPG (controlling any pair of orthogonal polarizations) and THI (realizing arbitrary polarizations), and greatly expands the freedom of multifunctional design. The following advantages are achieved simultaneously: full space, single layer, arbitrary polarization, and switchability. The developed MTS has promising applications in bidirectional nearfield high-capacity communication.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"3109-3113"},"PeriodicalIF":4.8,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144997983","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

Unified Dispersion Relation of Groove Gap Waveguide and Substrate Integrated Waveguide Based on Transverse Resonance Method 基于横向共振方法的槽隙波导和衬底集成波导的统一色散关系

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-25 DOI: 10.1109/LAWP.2025.3583056

Xin Cheng;Xiaobo Liu;Xiaoming Chen;Le Chang;Luyu Zhao;Zhixiang Huang

引用次数: 0

Novel Frequency-Reconfigurable and Self-Decoupling Technique for MIMO Antenna Systems Leveraging Flexible Air Cavities 基于柔性空腔的MIMO天线系统频率可重构自解耦新技术

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-25 DOI: 10.1109/LAWP.2025.3583183

Wenjing Zhu;Lei Wang;Zhenxiang Yi

{"title":"Novel Frequency-Reconfigurable and Self-Decoupling Technique for MIMO Antenna Systems Leveraging Flexible Air Cavities","authors":"Wenjing Zhu;Lei Wang;Zhenxiang Yi","doi":"10.1109/LAWP.2025.3583183","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3583183","url":null,"abstract":"A novel and effective method for frequency reconfiguration and self-decoupling is proposed for multiple-input–multiple-output (MIMO) antenna systems in this letter. As a demonstration, a two-patch antenna system is designed and achieves six reconfigurable states by adjusting the heights of the flexible cavities, corresponding to different resonant frequencies and coupling efficiencies. The electromagnetic energy can be confined within each cavity by elevating the cavities, leading to superior port isolation. The design is validated through prototype fabrication and testing, with the measured results closely aligning with the simulations. The highest port isolation, exceeding 17.6 dB, is achieved when both dielectric patch antennas (DPAs) are in the up state. This corresponds to a maximum coupling reduction of 6.49 dB compared to the scenario where both DPAs are in the down state. The proposed approach achieves high port isolation without the need for additional decoupling structures and enables frequency reconfiguration, offering a simple and efficient solution for emerging MIMO systems.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"3104-3108"},"PeriodicalIF":4.8,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998273","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 a Dual-Fed Triple-Band Circularly Polarized Microstrip Patch Antenna Using Substructure Characteristic Mode 基于子结构特性模式的双馈三波段圆极化微带贴片天线设计

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-24 DOI: 10.1109/LAWP.2025.3582960

Hongwei Ren;Buyun Wang;Yuanxi Cao;Jianxing Li;Sen Yan

引用次数: 0

Sparse Wire-Grid Horn Antenna for the UHF Band 超高频频段稀疏线栅喇叭天线

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-24 DOI: 10.1109/LAWP.2025.3582298

Manh Tuan Nguyen;Adnan Faiezovich Alhaj Hasan;Talgat Rashitovich Gazizov

引用次数: 0