IEEE Open Journal of Antennas and Propagation最新文献_第6页

Pattern Compensation for Faulty Phased Array Antenna Based on Deep-Learning Technique 基于深度学习技术的故障相控阵天线模式补偿

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-12-23 DOI: 10.1109/OJAP.2024.3521950

Shu-Min Tsai;Ming-Tien Wu;Yu-Han Chen;Hong-Wei Yan;Ming-Lin Chuang

{"title":"Pattern Compensation for Faulty Phased Array Antenna Based on Deep-Learning Technique","authors":"Shu-Min Tsai;Ming-Tien Wu;Yu-Han Chen;Hong-Wei Yan;Ming-Lin Chuang","doi":"10.1109/OJAP.2024.3521950","DOIUrl":"https://doi.org/10.1109/OJAP.2024.3521950","url":null,"abstract":"This study proposes an approach to compensate for pattern distortion in a phased array antenna caused by antenna element failures. The proposed approach utilizes a deep-learning network explicitly trained for a phased array antenna with damaged elements to generate the necessary excitation, producing a new pattern closely resembling the intact phased array antenna. Compared to alternative methods that focus on reducing side-lobe level, this compensation approach offers the advantages of rapid response and minimal computational overhead for the re-synthesis of the desired pattern that is close to the original pattern. This approach makes it particularly suitable for scenarios involving faulty phased array antennas, such as those on satellites or mountain-top antenna towers, where replacement or repair is not readily feasible in a short timeframe. This study demonstrates the pattern compensation for the two phased array antennas with damaged antenna elements. This work analyzes several randomly selected patterns and proposes quantitative indices to evaluate the performance of the approach. The proposed approach produced the compensating excitations of the remaining undamaged elements within 0.1 sec after inputting the desired pattern. The simulated results indicate that the proposed method effectively reduces pattern distortion resulting from antenna element failures and thus regenerates an optimal pattern as close as possible to the original one.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":"6 2","pages":"414-421"},"PeriodicalIF":3.5,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10812994","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Compact High Selectivity Patch Antenna Under Triple-Mode Resonance via Loading Symmetrical Slots 负载对称槽三模谐振下的紧凑型高选择性贴片天线

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-12-19 DOI: 10.1109/OJAP.2024.3520502

Mingli Sun;Qianwen Liu;Lei Zhu

{"title":"Compact High Selectivity Patch Antenna Under Triple-Mode Resonance via Loading Symmetrical Slots","authors":"Mingli Sun;Qianwen Liu;Lei Zhu","doi":"10.1109/OJAP.2024.3520502","DOIUrl":"https://doi.org/10.1109/OJAP.2024.3520502","url":null,"abstract":"In this article, a compact filtering patch antenna on a single-layer substrate under triplemode resonance is proposed by loading two pairs of stepped slots. Initially, four straight slots are symmetrically etched along the radiation edges of a square patch radiator to reshape the radiation and resonant properties of its two higher-order TM02 and TM12 modes for bandwidth enhancement when maintaining the performances of the fundamental TM10 mode unchanged. Owing to the specific field distributions of the reshaped TM02 and TM12 modes, two radiation nulls can be produced nearby. In order to move the radiation nulls outside the desired passband for highly-sharpened wideband filtering radiation, the straight slots are then properly modified with their stepped ones in configuration. In this context, this proposed single patch antenna not only achieves a wide bandwidth under operation of three reshaped TM02, TM10, and TM12 modes, but also attains good frequency selectivity with the help of two out-of-band radiation nulls. For evident demonstration, the proposed antenna prototype is designed, fabricated and measured. Good agreement between the simulated and measured results, including frequency responses of reflection coefficient and radiation gain, is observed. Compared with other reported patch antennas, the proposed antenna not only holds simple layout and compact size in configuration, but also realizes a wideband filtering radiation performance with high frequency selectivity by virtue of excitation and operation of three resonant modes in a single patch radiator.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":"6 2","pages":"405-413"},"PeriodicalIF":3.5,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10808170","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

AMC-Based Miniaturized Waveguide With Reconfigurable Pass-Bands Below Cut-Off Frequency and Quasi-TEM Mode 基于 AMC 的微型波导，具有低于截止频率的可重构通带和准 TEM 模式

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-12-18 DOI: 10.1109/OJAP.2024.3506921

Vikrant Singh;Maryam Khodadadi;Mohsen Khalily;Rahim Tafazolli;Ahmed A. Kishk

{"title":"AMC-Based Miniaturized Waveguide With Reconfigurable Pass-Bands Below Cut-Off Frequency and Quasi-TEM Mode","authors":"Vikrant Singh;Maryam Khodadadi;Mohsen Khalily;Rahim Tafazolli;Ahmed A. Kishk","doi":"10.1109/OJAP.2024.3506921","DOIUrl":"https://doi.org/10.1109/OJAP.2024.3506921","url":null,"abstract":"This work introduces an innovative miniaturized transverse electromagnetic (TEM) waveguide design, which is 60% smaller than conventional metal waveguides. The proposed waveguide offers two distinct electronically reconfigurable passbands well below the cutoff frequency. This has been achieved by using sidewalls composed of reconfigurable artificial magnetic conductors (AMC), optimized to operate at 3.51 GHz and 4.37 GHz. By replacing the metal sidewalls with an AMC structure, a TEM mode can be sustained within the confined space enclosed by the waveguide structure, which otherwise would not exist in a conventional metal waveguide. This eliminates typical cut-off frequency constraints that limit the size of conventional waveguides, thereby enabling a significant miniaturization of the waveguide design. The work also proposes a reconfigurable AMC design whose operating frequency can be dynamically adjusted by applying or removing a direct current (DC) bias across the integrated PIN diodes. Additionally, this work utilizes 3D printing technology to fabricate a functional waveguide, highlighting the design’s compactness, cost-effectiveness, versatility, and fast prototyping capabilities for a wide range of microwave applications. This study therefore demonstrates the potential of using reconfigurable AMCs for compact and versatile waveguide designs that can be 3D-printed for various practical use cases and modern microwave applications.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":"6 2","pages":"393-404"},"PeriodicalIF":3.5,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10806758","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fluid Brilliance: Expanding the Horizons in MIMO Diversity Using Liquid Antenna 流体辉煌：利用液体天线拓展MIMO分集的视野

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-12-17 DOI: 10.1109/OJAP.2024.3519332

Viswanadh Raviteja Gudivada;Yi Huang

{"title":"Fluid Brilliance: Expanding the Horizons in MIMO Diversity Using Liquid Antenna","authors":"Viswanadh Raviteja Gudivada;Yi Huang","doi":"10.1109/OJAP.2024.3519332","DOIUrl":"https://doi.org/10.1109/OJAP.2024.3519332","url":null,"abstract":"A six-port liquid dielectric resonator antenna designed to enhance diversity for Wi-Fi applications operating at 2.45 GHz, leveraging the fluidic properties of liquids is presented. The proposed design incorporates both conventional and modified intrusive feeding mechanisms, specifically utilizing extended copper lines with vertical dielectric wall support. This arrangement is aimed at realizing six pattern and polarization-independent TM<inline-formula> <tex-math>$_{0}2delta {+}1 $ </tex-math></inline-formula>, HEM<inline-formula> <tex-math>${^{text {y}}} {_{2}1delta {+}1 }$ </tex-math></inline-formula>, HEM<inline-formula> <tex-math>$1{_{2}2delta }$ </tex-math></inline-formula>, HEM<inline-formula> <tex-math>$2{_{2}2delta }$ </tex-math></inline-formula>, HEM<inline-formula> <tex-math>${^{text {x}}} {_{2}1delta {+}1 }$ </tex-math></inline-formula>, and HEM<inline-formula> <tex-math>${^{text {y}}} {_{1}2delta {+}1 }$ </tex-math></inline-formula> higher-order modes belonging to the TM and HEM mode family. The liquid antenna demonstrates favorable MIMO characteristics and satisfactory far-field behavior, all within a compact profile of less than <inline-formula> <tex-math>$0.24lambda $ </tex-math></inline-formula>o. A working prototype is designed and tested with good agreement between the simulated and the measured results.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":"6 2","pages":"383-392"},"PeriodicalIF":3.5,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10804619","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Compact Dual-Band, Dual-Circular Polarized Microstrip Antenna Array for K/Ka-Band Application 用于K/ ka波段应用的紧凑型双频双圆极化微带天线阵列

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-12-16 DOI: 10.1109/OJAP.2024.3518556

Nohgyeom Ha;Gyoungdeuk Kim;Hyun-Cheol Bae;Sangkil Kim

{"title":"Compact Dual-Band, Dual-Circular Polarized Microstrip Antenna Array for K/Ka-Band Application","authors":"Nohgyeom Ha;Gyoungdeuk Kim;Hyun-Cheol Bae;Sangkil Kim","doi":"10.1109/OJAP.2024.3518556","DOIUrl":"https://doi.org/10.1109/OJAP.2024.3518556","url":null,"abstract":"A novel dual-band and dual-circularly polarized microstrip antenna design for a small AAV or a low earth orbit (LEO) satellite applications at K/Ka-band is proposed in this paper. Utilizing arrow-shaped and T-shaped stubs, the proposed design ensures right-hand and left-hand circular polarization across two frequency bands. The design activates orthogonal modes (TM10/TM01 and TM30/TM21) simultaneously, leveraging arrow-shaped and T-shaped stubs to finely tune resonant frequencies. The dimensions of these stubs facilitate independent adjustment of each operational band, ensuring optimized antenna functionality across different frequencies. Verification through a <inline-formula> <tex-math>$2times 2$ </tex-math></inline-formula> antenna array design at 18.6 GHz and 30.9 GHz demonstrates the proposed design concept, achieving impedance bandwidths of 11.0% and 4.8%, axial ratio bandwidths of 3.7% and 2.3%, and realized gains of 9.45 dBic at 18.6 GHz and 10.78 dBic at 30.9 GHz, affirming its potential for advanced communication applications.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":"6 2","pages":"372-382"},"PeriodicalIF":3.5,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10804188","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrically Large Complex Objects Recognition Based on Gated Recurrent Residual Network (GRRNet) 基于门控递归残差网络（GRRNet）的电大型复杂目标识别

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-12-13 DOI: 10.1109/OJAP.2024.3516835

Shangyin Liu;Lei Xing;Xiaojun Hao;Shuaige Gong;Qian Xu;Wenjun Qi

{"title":"Electrically Large Complex Objects Recognition Based on Gated Recurrent Residual Network (GRRNet)","authors":"Shangyin Liu;Lei Xing;Xiaojun Hao;Shuaige Gong;Qian Xu;Wenjun Qi","doi":"10.1109/OJAP.2024.3516835","DOIUrl":"https://doi.org/10.1109/OJAP.2024.3516835","url":null,"abstract":"In this paper, a novel deep model based on gated recurrent residual network for electrically large complex objects recognition is proposed. It can fully exploit the data envelope information and temporal correlation to improve the system recognition performance. Electromagnetic (EM) scattering property measurements for electrically large objects are costly and time-consuming, affected by various environmental factors. The high-frequency approximate technique, namely the shooting and bouncing ray method (SBR), is introduced to quickly acquire high resolution one-dimensional range profile (HRRP) of electrically large complex objects. Both the corner reflector and the model car are measured to validate the accuracy of the SBR method. The method is employed to establish HRRP database for various vehicles in traffic scenarios. Deep learning can automatically study data deep features and show outstanding performance in various classification tasks. The residual network (ResNet) and gated recurrent unit (GRU) models are combined to capture and aggregate scattering information of objects. ResNet uses 1-D convolutional kernels and residual blocks to efficiently capture the scattering information within each distance cell while avoiding gradient vanishing or gradient explosion issue. GRU aggregates scattering information along the spatial dimension to construct object feature representations. The combination of them can take advantage of their respective strengths to fully mine the information of HRRPs. Compared with the conventional methods, the features extracted by the proposed model from each class are more concentrated shown in the result of t-distributed stochastic neighbor embedding. The deep model exhibits a superior average recognition rate up to 95.56%, significantly higher than existing methods. It shows robustness to noise, thereby showcasing good potential for practical applications within the Internet of Vehicles (IoVs).","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":"6 2","pages":"365-371"},"PeriodicalIF":3.5,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10798473","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

GPS Interference Cancelation Using Metamaterials 利用超材料消除GPS干扰

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-12-11 DOI: 10.1109/OJAP.2024.3515475

Amir Jafargholi;Romain Fleury

{"title":"GPS Interference Cancelation Using Metamaterials","authors":"Amir Jafargholi;Romain Fleury","doi":"10.1109/OJAP.2024.3515475","DOIUrl":"https://doi.org/10.1109/OJAP.2024.3515475","url":null,"abstract":"This paper introduces a novel passive method and structure designed to mitigate unwanted interference at the antenna in conventional Global Positioning System (GPS) applications. In contrast to traditional approaches that typically utilize high-impedance structures with limited cancelation or antenna arrays employing null-steering techniques, which often result in increased complexity and cost, this study proposes the use of a single-element circularly polarized truncated microstrip patch antenna radially loaded by a magneto-dielectric metamaterial (MTM) structure. The problem is analytically examined, and an appropriate meta cell is chosen, designed, and fabricated. Numerical simulations demonstrate that owing to the magnetic behavior of a new low-profile capacitively-loaded loop (CLL), it serves as an effective structure for suppressing unwanted azimuthal incident plane waves by up to 40 dB. The proposed MTM cover features a cylindrical shape with a diameter and height of <inline-formula> <tex-math>$0.27lambda _{0}$ </tex-math></inline-formula> and <inline-formula> <tex-math>$0.42lambda _{0}$ </tex-math></inline-formula>, respectively, achieving a gain and efficiency of 6.5 dBi and 85%, respectively.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":"6 2","pages":"357-364"},"PeriodicalIF":3.5,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10793069","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reflective Metasurface for Multi-Band Polarization Conversion for Satellite Applications in 6G Networks 6G网络中卫星多波段极化转换的反射超表面

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-12-09 DOI: 10.1109/OJAP.2024.3514122

Humayun Zubair Khan;Abdul Jabbar;Jalil Ur Rehman Kazim;Jamal Zafar;Masood Ur-Rehman;Muhammad Ali Imran;Qammer H. Abbasi

引用次数: 0

A Numerical Integration Method for Calculating the Bit Error Rate of Time-Modulated Array 一种计算时调阵列误码率的数值积分法

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-12-04 DOI: 10.1109/OJAP.2024.3510759

Kexin Wang;Jian Zhang;Gang Xin;Xue Lei;Jun Gao;Tianpeng Li

引用次数: 0

A Millimeter-Wave Single-Bit Reconfigurable Intelligent Surface With High-Resolution Beam-Steering and Suppressed Quantization Lobe 具有高分辨率波束导向和抑制量化瓣的毫米波单比特可重构智能表面

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-12-03 DOI: 10.1109/OJAP.2024.3506453

Aditya S. Shekhawat;Bharath G. Kashyap;Russell W. Raldiris Torres;Feiyu Shan;Georgios C. Trichopoulos

{"title":"A Millimeter-Wave Single-Bit Reconfigurable Intelligent Surface With High-Resolution Beam-Steering and Suppressed Quantization Lobe","authors":"Aditya S. Shekhawat;Bharath G. Kashyap;Russell W. Raldiris Torres;Feiyu Shan;Georgios C. Trichopoulos","doi":"10.1109/OJAP.2024.3506453","DOIUrl":"https://doi.org/10.1109/OJAP.2024.3506453","url":null,"abstract":"We present a 1-bit reconfigurable intelligent surface (RIS) operating at millimeter-wave frequencies that suppresses the undesired grating lobes encountered in binary phase modulation schemes and achieves high resolution beam steering. We incorporate fixed, random phase delays at each unit cell of the surface which breaks the periodicity of the phase quantization error and suppresses side lobes. Additionally, the random phase delays reduce the beam pointing error – a limitation of binary RISs - which can be beneficial in applications that require high resolution beam steering. The proposed topology allows for scalable RIS apertures that are compatible with printed circuit board (PCB) fabrication technology. It consists of four metasurface tiles of 256 radiating elements (<inline-formula> <tex-math>$16times 16$ </tex-math></inline-formula>) connected on a separate control board that houses the control unit and power supply. The prototype is designed to operate at 27.2 GHz and perform electronic beam steering in ±60° in both azimuth and elevations planes. A quantization lobe reduction of more than 10 dB is achieved with the proposed technique and the surface is well suited for mmWave 5G communication scenarios to enhance signal coverage and signal-to-noise ratio.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":"6 1","pages":"311-325"},"PeriodicalIF":3.5,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10772712","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143106982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0