IEEE Antennas and Wireless Propagation Letters最新文献_第8页

Low-Dispersion Hybrid Implicit-Explicit Leapfrog CDI-FDTD 低色散混合隐式-显式跨越式CDI-FDTD

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-09-01 Epub Date: 2026-07-31 DOI: 10.1109/LAWP.2026.3718969

Kanglong Zhang;Hanghang Xia;Peng Zhao;Kuiwen Xu;Shichang Chen;Gaofeng Wang

引用次数: 0

Analyzing Performance Limits on Polarization-Specific Gain for UAV Conformal Antennas Using Polarization Decomposition 基于极化分解的无人机共形天线极化增益性能限制分析

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-09-01 Epub Date: 2026-07-14 DOI: 10.1109/LAWP.2026.3713203

Yin-Qing Pan;Chuan-Sheng Chen;Junjie Shao;Ren Wang;Bing-Zhong Wang

{"title":"Analyzing Performance Limits on Polarization-Specific Gain for UAV Conformal Antennas Using Polarization Decomposition","authors":"Yin-Qing Pan;Chuan-Sheng Chen;Junjie Shao;Ren Wang;Bing-Zhong Wang","doi":"10.1109/LAWP.2026.3713203","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3713203","url":null,"abstract":"Conformal antennas have been integrated into uncrewed aerial vehicle (UAV) structures. However, the performance limits (PLs) of conformal antennas remain a challenge for designers. Recent advances in electromagnetics have enabled the analysis of PLs on antenna gain (i.e., the maximum gain). However, a key drawback is that UAV antenna gain must satisfy complex polarization requirements, and such polarization-specific gain (PSG) introduces nonconvex constraints that existing methods struggle to handle. To find the performance limits on polarization-specific gain (PLs on PSG, i.e., the maximum polarization-specific gains) for UAV conformal antennas, this letter proposes a polarization decomposition (PD) method. PD decomposes arbitrary polarizations into linear combinations of a best and a worst polarization and establishes a polarization optimization model that significantly simplifies the PL problem while overcoming nonconvex constraints. Then, by comparing PD with classical methods and applying it to a practical interdrone communication antenna example, we demonstrate its correctness, effectiveness, and engineering value.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 9","pages":"3581-3585"},"PeriodicalIF":4.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903025","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 Shared-Feed Dual-Polarized Multibeam Antenna Based on Dual-Mode SICL for Millimeter-Wave Applications 毫米波应用中基于双模SICL的紧凑型共享馈电双极化多波束天线

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-09-01 Epub Date: 2026-07-16 DOI: 10.1109/LAWP.2026.3714204

Qiang Sun;Yankai Ma;Qianyin Xiang;Quanyuan Feng

{"title":"A Compact Shared-Feed Dual-Polarized Multibeam Antenna Based on Dual-Mode SICL for Millimeter-Wave Applications","authors":"Qiang Sun;Yankai Ma;Qianyin Xiang;Quanyuan Feng","doi":"10.1109/LAWP.2026.3714204","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3714204","url":null,"abstract":"A compact dual-polarized millimeter-wave (mm-wave) multibeam antenna is proposed based on a dual-mode substrate integrated coaxial line (SICL). Using this dual-mode transmission line, a highly integrated shared 4 × 4 Butler matrix is developed, where the directional couplers, crossovers, and 45°/135° and 0°/0° phase shifters are reused by the two modes to realize two orthogonal beamforming channels without employing two independent beamforming networks. For radiation, a compatible dual-polarized slot antenna is designed. The quasi-transverse electromagnetic (TEM) mode excites a metasurface-loaded transverse slot to generate Y-polarized radiation, whereas the TE10 mode excites a longitudinal slot to generate X-polarized radiation. To validate the design, an eight-port dual-polarized multibeam antenna prototype is fabricated and measured. At 28 GHz, the main beams of the X-and Y-polarized channels are directed toward −46°, −12°, +12°, +46°, and −41°, −15°, +16°, +39°, respectively. Over 26 GHz to 30 GHz, the measured gains are 6.37 dBi to 12.21 dBi and 4.20 dBi to 10.41 dBi for the X- and Y-polarized channels, respectively, while the corresponding cross-polarization levels remain below −25 dB and −17 dB. These results demonstrate the feasibility of the proposed planar shared-feed architecture for mm-wave dual-polarized multibeam front ends.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 9","pages":"3631-3635"},"PeriodicalIF":4.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903123","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

DGTD Method for Lightning Pulse Propagation in Anisotropic Earth-Ionosphere Waveguide 各向异性地球-电离层波导中闪电脉冲传播的DGTD方法

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-09-01 Epub Date: 2026-07-07 DOI: 10.1109/LAWP.2026.3711184

Jiarong Dong;Qian Yang;Linqian Li;Bing Wei;Zhaomin Li

{"title":"DGTD Method for Lightning Pulse Propagation in Anisotropic Earth-Ionosphere Waveguide","authors":"Jiarong Dong;Qian Yang;Linqian Li;Bing Wei;Zhaomin Li","doi":"10.1109/LAWP.2026.3711184","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3711184","url":null,"abstract":"When a lightning electromagnetic pulse (LEMP) propagates in the Earth-ionosphere waveguide, the ionosphere exhibits anisotropy under the influence of the geomagnetic field, which directly affects the propagation velocity and attenuation characteristics of the LEMP. Therefore, taking the geomagnetic field into account in numerical simulations is of great significance for improving model accuracy. To address the limited applicability of existing analytical methods and the poor grid adaptability of conventional finite difference time-domain (FDTD) methods, this letter employs the more advantageous discontinuous Galerkin time-domain (DGTD) method. However, existing DGTD-based propagation simulations typically simplify the ionosphere as an isotropic medium, making it difficult to accurately characterize the actual propagation behavior. To overcome this limitation, an auxiliary differential equation (ADE) is introduced to describe the anisotropic properties of the ionosphere in this letter. The DGTD iterative formulation suitable for the magnetized ionosphere is derived, and the correctness of the proposed algorithm is verified. On this basis, a waveguide model incorporating the geomagnetic field is constructed, and the effects of the geomagnetic field on LEMP propagation characteristics under different ionospheric conditions are comparatively analyzed. This study refines the DGTD method for LEMP propagation in complex ionospheric environments and provides a new numerical tool for the accurate simulation of LEMP in anisotropic ionospheres.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 9","pages":"3531-3535"},"PeriodicalIF":4.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903167","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

Optically Transparent and Broadband Aperiodic Absorber Based on Hilbert Curve 基于希尔伯特曲线的光透明宽带非周期吸收体

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-09-01 Epub Date: 2026-07-27 DOI: 10.1109/LAWP.2026.3717406

Weixi Xu;Bian Wu;Shanmeng Wang;Jiao Yin;Yutong Zhao;Ying Liu

{"title":"Optically Transparent and Broadband Aperiodic Absorber Based on Hilbert Curve","authors":"Weixi Xu;Bian Wu;Shanmeng Wang;Jiao Yin;Yutong Zhao;Ying Liu","doi":"10.1109/LAWP.2026.3717406","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3717406","url":null,"abstract":"In this letter, an optically transparent and broadband aperiodic metamaterial absorber based on the Hilbert curve is proposed. The absorber consists of a top Hilbert lossy layer and a bottom metal mesh ground. The lossy layer employs a single continuous Hilbert curve with a width of 3 μm, yielding an extremely low metal filling ratio of 0.2%. Benefiting from the intrinsic multi-resonance nature of the Hilbert curve, the absorber achieves a polarization-insensitive wideband absorption from 6 GHz to 15.7 GHz with a fractional bandwidth (FBW) of 89% under normal incidence. Furthermore, by cascading two lossy layers with different fractal orders, the absorption band is broadened to 3 GHz to 18 GHz. Single- and dual-lossy-layer prototypes were fabricated and measured, exhibiting good agreement with the simulations. The measured optical transmittances of the single- and dual-layer absorbers are 90% and 88%, respectively, while the isolated lossy layer reaches a transmittance of 98% with excellent flexibility. Finally, experimental results validate that the cropped small-size samples can maintain robust absorption performance, demonstrating the advantage of the aperiodic structure against physical truncation.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 9","pages":"3746-3750"},"PeriodicalIF":4.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903209","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

Physics-Guided Cascaded Neural Network for Input Impedance in Microstrip Antennas 微带天线输入阻抗的物理导向级联神经网络

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-09-01 Epub Date: 2026-07-27 DOI: 10.1109/LAWP.2026.3717469

Hao Deng;Xingyue Guo;Yuan’ an Liu

{"title":"Physics-Guided Cascaded Neural Network for Input Impedance in Microstrip Antennas","authors":"Hao Deng;Xingyue Guo;Yuan’ an Liu","doi":"10.1109/LAWP.2026.3717469","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3717469","url":null,"abstract":"Microstrip antennas (MSAs) are widely utilized in wireless communication systems, and the precise determination of their feed locations heavily relies on analyzing the distribution of the position-dependent input impedance. However, traditional analytical models lack accuracy, while full-wave electromagnetic (EM) simulations suffer from high computational costs. In this letter, a physics-guided cascaded neural network (PGCNN) framework is proposed to robustly predict the input impedance and resonant frequency of MSAs. The proposed PGCNN conforms to the intrinsic physical generation process of input impedance, achieving a nonlinear mapping from geometric parameters and spatial coordinates to resonant frequency, and ultimately to input impedance. Meanwhile, a physics-constrained hybrid loss function is embedded to enforce physical consistency and penalize predictions that violate the EM principles of passivity and spatial monotonicity. In addition, a low-complexity S-to-Z parameter transformation workflow for extracting input impedance is proposed to construct large-scale datasets. Finally, through validation on extensive datasets in scenarios where both patch length (<inline-formula><tex-math>${{L}_{mathrm{p}}}$</tex-math></inline-formula>) and relative permittivity (<inline-formula><tex-math>${{varepsilon }_{mathrm{r}}}$</tex-math></inline-formula>) are out-of-distribution (OOD), the proposed PGCNN demonstrates robust predictive performance compared to baseline models. Specifically, for the <inline-formula><tex-math>${{L}_{mathrm{p}}}$</tex-math></inline-formula> and <inline-formula><tex-math>${{varepsilon }_{mathrm{r}}}$</tex-math></inline-formula> OOD test sets, the proposed PGCNN achieves coefficient of determination values of 0.9694 and 0.9892 for resonant frequency, 0.9340 and 0.9562 for input resistance, and 0.9742 and 0.9720 for input reactance, respectively, validating its strong physical consistency and generalization capabilities.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 9","pages":"3756-3760"},"PeriodicalIF":4.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903213","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 Millimeter-Wave CP Filtering Magnetoelectric Dipole Antenna With SIGW Technology 基于SIGW技术的毫米波CP滤波磁电偶极子天线

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-09-01 Epub Date: 2026-07-28 DOI: 10.1109/LAWP.2026.3717579

Chao Chen;Jianlin Han;Haoming Liu;Jun Wang;Ruofeng Xu;Lei Zhao;Jixin Chen;Ying Liu

引用次数: 0

Design of Broadband Multilinear Polarization Reconfigurable Antenna Loaded With AMC 加载AMC的宽带多线极化可重构天线设计

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-09-01 Epub Date: 2026-07-16 DOI: 10.1109/LAWP.2026.3714078

Jingtong Kou;Shixing Yu;Na Kou

{"title":"Design of Broadband Multilinear Polarization Reconfigurable Antenna Loaded With AMC","authors":"Jingtong Kou;Shixing Yu;Na Kou","doi":"10.1109/LAWP.2026.3714078","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3714078","url":null,"abstract":"In this letter, a multilinearly polarized reconfigurable antenna based on artificial magnetic conductor structure (AMC) is proposed. The broadband leaf-shaped dipole is used as the radiator, and the seven pairs of dipole arms are placed above and beneath supporting substrate to achieve a polarization interval of 25.7°. The p-i-n diode is loaded to realize the switching of different linear polarization states. In order to achieve low profile, an AMC reflector with star patch unit is used to reduce the antenna profile. The AMC reflector has a wide in-phase reflection bandwidth of 94% (from 1.9 GHz to 5.3 GHz), which effectively reduces the antenna profile height to 0.16λ<italic>L (λ<italic>L is the free space wavelength at lowest operating frequency). Both simulated and experimental results show that the impedance bandwidth of the antenna can reach 56% (from 1.9 GHz to 3.4 GHz) in all polarization states, and the radiation patterns are stable with wide beams, and the maximum gain can reach 7.3 dBi while the cross-polarization levels are small (< −20 dB). The proposed antenna can be used in airborne and shipborne radars or multifunctional communication systems.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 9","pages":"3626-3630"},"PeriodicalIF":4.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148902795","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

Single-Layer Reflectarray With Hybrid-Resonator Units for Two Transmit-Receive Beam Pairs 具有混合谐振器单元的单层反射阵列，用于两个发射-接收光束对

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-09-01 Epub Date: 2026-07-15 DOI: 10.1109/LAWP.2026.3713925

Xiao-Ming Mei;Peng-Fei Gu;Xiao Tao;Chao-Fu Wang;Kwok Wa Leung;Zhen-Hong Fan;Da-Zhi Ding

引用次数: 0

A Segmented Metasurface Retroreflector for Ultrawideband and Wide-Angle Monostatic RCS Enhancement 一种用于超宽带广角单站RCS增强的分段超表面后向反射器

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-09-01 Epub Date: 2026-07-16 DOI: 10.1109/LAWP.2026.3713547

Zhiming Li;Linxu Gong;Yi Li;Mei Bi;Xiaolong Weng;Haiyan Chen;Wei Luo

引用次数: 0