IEEE Antennas and Wireless Propagation Letters最新文献

A High-Efficiency Dual-Polarized Phase-Shifted Antenna Array With Stable Tilted-Beam Angle 具有稳定倾斜波束角的高效双极化相移天线阵列

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-04-01 Epub Date: 2026-02-17 DOI: 10.1109/LAWP.2026.3665541

Han-Jie Xu;Shi-Wei Qu;Deqiang Yang

{"title":"A High-Efficiency Dual-Polarized Phase-Shifted Antenna Array With Stable Tilted-Beam Angle","authors":"Han-Jie Xu;Shi-Wei Qu;Deqiang Yang","doi":"10.1109/LAWP.2026.3665541","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3665541","url":null,"abstract":"In this letter, a high-efficiency, dual-polarized, phase-shifted antenna array with a stable tilted-beam angle is proposed. To eliminate the requirement for phase-shifted feeding layers, novel array elements with phase-shifted capabilities are proposed, designed by cascading different baluns and dipoles. First, Marchand baluns and direct-fed baluns are proposed as phase shifters by analyzing their equivalent circuits and transmission coefficients. Additionally, changing the shapes of antennas is also effective to adjust the phase distributions. These methods enable antennas to exhibit phase-shifted capabilities, thereby achieving integration, low cost, and high efficiency. After careful optimization, 2-bit phase distributions of 0°, −90°, −180°, and −270° are attained. The simulated results indicate that the antenna array demonstrates reflection coefficients below −10 dB within 3.35 GHz to 3.9 GHz and a total efficiency of 94.3% at 3.6 GHz. A stable beam angle of 23° is achieved, and the variations of the beam angle are less than 1° within operating frequencies. Finally, a 4 × 6 array prototype is fabricated and a reasonable agreement is obtained between the simulated and measured results.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 4","pages":"1827-1831"},"PeriodicalIF":4.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147665301","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

Dual-Band Circularly Polarized Shared-Aperture Antenna With Simplified Feeding Configuration Based on Phase Difference Compensation Technique for Smartphone Applications 基于相位差补偿技术的智能手机简化馈电结构双频圆极化共孔径天线

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-04-01 Epub Date: 2026-02-23 DOI: 10.1109/LAWP.2026.3666805

Tongyu Ding;Huaibin Wang;Shaoqing Zhang;Liang Zhang;Chong-Zhi Han

{"title":"Dual-Band Circularly Polarized Shared-Aperture Antenna With Simplified Feeding Configuration Based on Phase Difference Compensation Technique for Smartphone Applications","authors":"Tongyu Ding;Huaibin Wang;Shaoqing Zhang;Liang Zhang;Chong-Zhi Han","doi":"10.1109/LAWP.2026.3666805","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3666805","url":null,"abstract":"This letter presents a simplified dual-band circularly polarized (CP) antenna for smartphones, operating at 1.575 GHz and 3.8 GHz. First, two folded dipoles are introduced and integrated into the upper and right bezels of the handset, achieving dual-band resonant performance. Second, lumped-element loading technique, e.g., series capacitors and inductors loading, is proposed to adjust the 1st- and 3rd-order mode resonances to the desired frequencies. Third, only one power divider as well as phase shifter is introduced as sequentially rotated feeding (SRF) configuration, achieving CP performance at 1.575 GHz. Fourthly, phase difference compensation technique (PDCT) is applied to adjust the phase difference at 3.8 GHz without destroying the CP performance at 1.575 GHz. Finally, dual-band CP performance can be obtained due to the proposed PDCT. A prototype was fabricated and tested, indicating gratifying dual-band CP performance of −6 dB impedance bandwidth of 115 MHz, 3 dB AR bandwidth of 450 MHz at 1.575 GHz, and impedance bandwidth of 300 MHz, 3 dB AR bandwidth of 160 MHz at 3.8 GHz. The proposed antenna features a simple structure for integration into a handset, offering a novel approach for achieving dual-band CP performance.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 4","pages":"1857-1861"},"PeriodicalIF":4.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147665444","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 Chamfered Pyramidal Potter Horn Antenna With Low Sidelobe Level and Cross Polarization 具有低旁瓣电平和交叉极化的倒角锥形波特喇叭天线

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-04-01 Epub Date: 2026-02-19 DOI: 10.1109/LAWP.2026.3666299

Jun Xiao;Jing Wu;Tongyu Ding;Yan Wang;Chong-Zhi Han

引用次数: 0

A Broadband Magneto-Electric Dipole Antenna With Stable Broadside Radiation Performance 具有稳定宽侧辐射性能的宽带磁电偶极子天线

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-04-01 Epub Date: 2026-02-23 DOI: 10.1109/LAWP.2026.3667440

Zilai Wang;Jianming Huang;Naibo Zhang;Haozhe Hou;Yu Jin;Yansong Cui;Weizheng Ren;Ze Yan;Lirong Mei

引用次数: 0

Design and Test of a Reconfigurable Broadband Very Low-Frequency Transmitting Antenna 一种可重构宽带甚低频发射天线的设计与测试

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-04-01 Epub Date: 2026-02-13 DOI: 10.1109/LAWP.2026.3664455

Wenhou Zhang;Hongbo Han;Yu Zhang;Zhenxin Cao;Xiaoyu Wang

{"title":"Design and Test of a Reconfigurable Broadband Very Low-Frequency Transmitting Antenna","authors":"Wenhou Zhang;Hongbo Han;Yu Zhang;Zhenxin Cao;Xiaoyu Wang","doi":"10.1109/LAWP.2026.3664455","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3664455","url":null,"abstract":"The magnetoelectric mechanical antenna (MEMA) does not depend on a servo motor. It offers the advantages of a high modulation rate, small size, and low power consumption, which can address the issue of the rotary mechanical antenna having a low modulation rate. However, the characteristic of the MEMA that can only operate at the point of resonance results in a narrow bandwidth, which is not conducive to through-the-Earth communications. In this letter, a reconfigurable broadband very low-frequency transmitter antenna is proposed with a bandwidth increase of 4–5 times. First, we designed a MEMA with a resonance frequency of 5.6 kHz based on the requirements of deep-Earth communication. Multiarray MEMA broadband is then investigated to increase the bandwidth by a factor of 5.5 through a three-array parallel connection approach. Finally, the influence factors of MEMA resonance frequency are analyzed based on the modified Butterworth–Van Dyke model, and the problem of in-band flattening in the multiarray MEMA broadband method is solved. At the same time, we built a miniaturized prototype to test the antenna’s performance and communication capabilities, and completed experiments on 140 m air information transmission.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 4","pages":"1787-1791"},"PeriodicalIF":4.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147665426","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

NWP-Based Atmospheric Refractivity Modeling and Fast, Stable Nonuniform Plane Wave Ray-Tracing Simulations for LEO Link Analysis 基于nwp的大气折射率建模和快速稳定的非均匀平面波射线追踪模拟用于LEO链路分析

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-04-01 Epub Date: 2026-02-19 DOI: 10.1109/LAWP.2026.3666291

Bowoo Jang;Jun Heo;Yong Bae Park;Dong-Yeop Na

{"title":"NWP-Based Atmospheric Refractivity Modeling and Fast, Stable Nonuniform Plane Wave Ray-Tracing Simulations for LEO Link Analysis","authors":"Bowoo Jang;Jun Heo;Yong Bae Park;Dong-Yeop Na","doi":"10.1109/LAWP.2026.3666291","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3666291","url":null,"abstract":"Existing low-Earth-orbit (LEO) communication link analyses face two main challenges: first, limited accuracy of 3-D atmospheric refractivity reconstructed from sparsely sampled radiosonde data, and second, numerical instability in previous nonuniform plane-wave ray-tracing algorithm (Chang et al., 2005) (i.e., underflow under standard double precision), where nonuniform plane waves inevitably arise at complex-valued dielectric interfaces, is caused by extremely small atmospheric loss terms. To address these issues, we reconstruct a high-resolution 3-D complex-valued refractivity map using numerical weather prediction data, and develop a fast and numerically stable nonuniform plane-wave ray tracer. The method remains stable in double precision and delivers a 24-fold speedup over high-precision benchmarks. Comparisons show that boresight-error deviations and path-loss differences between the rigorous method and the uniform-plane-wave approximation remain negligible, even under heavy precipitation. Although rays in a lossy atmosphere experience different phase and attenuation direction vectors—forming nonuniform plane waves—the resulting effective attenuation along the path is nearly identical to that predicted by the uniform-plane-wave model. These findings justify the continued use of the uniform-plane-wave ray tracer in practical LEO link analyses.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 4","pages":"1847-1851"},"PeriodicalIF":4.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147665459","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

Broadband Low-Profile Patch Antenna With Efficiency-Optimized Coupling for 5G Mobile Terminals 面向5G移动终端的高效耦合宽带低轮廓贴片天线

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-04-01 Epub Date: 2026-02-23 DOI: 10.1109/LAWP.2026.3667152

Mengdi Liu;Yingzhao Wen;Haohuan Wang;Tianxi Feng;Hui Li

{"title":"Broadband Low-Profile Patch Antenna With Efficiency-Optimized Coupling for 5G Mobile Terminals","authors":"Mengdi Liu;Yingzhao Wen;Haohuan Wang;Tianxi Feng;Hui Li","doi":"10.1109/LAWP.2026.3667152","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3667152","url":null,"abstract":"This letter presents a simple, compact and fabrication-friendly wideband patch antenna enabled by an optimized coupling mechanism, specifically designed for fifth-generation (5G) mobile terminals. The proposed antenna consists of a driven patch and a parasitic patch printed on a single substrate layer, eliminating the need for an air layer or shorting vias and thereby greatly reducing structural complexity. By strategically optimizing the length and width of the parasitic patch, the amplitude–phase coupling between the driven and parasitic patches is precisely regulated. This optimization disrupts the strong anti-phase current cancellation that typically occurs in parasitic-element-assisted designs, enabling simultaneous bandwidth enhancement and efficiency preservation, effectively resolving the long-standing tradeoff between broad bandwidth and high radiation efficiency. A prototype antenna was fabricated and measured to validate the proposed method, with results showing excellent agreement with simulations. The realized antenna operates across 3.3 GHz to 4.2 GHz, fully covering the 5G N77 band.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 4","pages":"1872-1876"},"PeriodicalIF":4.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147665216","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

Self-Decoupled Dual-Band Dual-Polarized Shared-Aperture Base Station Antenna Array 自解耦双频双极化共孔径基站天线阵列

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-04-01 Epub Date: 2026-02-16 DOI: 10.1109/LAWP.2026.3665188

Shiqiang Fu;Haonan Li;Zhixia Xu;Zhongbao Wang;Zhi Ning Chen

引用次数: 0

A Dual-Polarized Reconfigurable Antenna With Enhanced Gain and Bandwidth Enabled by Integrating Metasurface and Metal Sidewalls 通过集成超表面和金属侧壁实现增益和带宽增强的双极化可重构天线

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-04-01 Epub Date: 2026-02-24 DOI: 10.1109/LAWP.2026.3667570

Xiyue Li;Tao Wang;Wenbo Liu;Xinyuan Cao

引用次数: 0

A Compact Textile Penta-Band Wearable Antenna Using Multimode Patch and Multiresonant Feeding for Off-Body Communications 一种用于离体通信的多模贴片和多谐振馈电的紧凑型纺织五波段可穿戴天线

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-04-01 Epub Date: 2026-02-16 DOI: 10.1109/LAWP.2026.3665513

Ziang Xu;Xiang Gao;Wenfei Tang;Kun Guo;Xiangyuan Bu;Jianping An

{"title":"A Compact Textile Penta-Band Wearable Antenna Using Multimode Patch and Multiresonant Feeding for Off-Body Communications","authors":"Ziang Xu;Xiang Gao;Wenfei Tang;Kun Guo;Xiangyuan Bu;Jianping An","doi":"10.1109/LAWP.2026.3665513","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3665513","url":null,"abstract":"This letter presents a compact textile penta-band wearable antenna for off-body communications. To resolve the challenge of implementing multiband operation with consistent polarization within a limited volume, the proposed antenna design combines the techniques of multimode resonant patch and multiresonant feeding. The upper radiating patch integrates a modified U-slot for enabling tri-band multimode resonance, while the middle-layer T-shaped feeding structure is loaded with two shorting pins and a notched square ring thus contributing two additional resonant bands via mode splitting. The antenna achieves a measured fractional operating bandwidth of 2.0%, 5.9%, 5.3%, 3.1% and 2.0% at 1.13 GHz, 1.62 GHz, 2.06 GHz, 2.62 GHz, and 2.88 GHz with |<italic>S</i><sub>11</sub>| < −10 dB, respectively. Far-field measurement results confirm identical polarization modes and stable broadside radiation patterns across all bands. On-body evaluations reveal that the specific absorption rate values are below 0.4 W/kg with the input power of 1 W, complying well with the safety limit. This antenna shall be very attractive for off-body communications.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 4","pages":"1822-1826"},"PeriodicalIF":4.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147665255","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