IEEE Transactions on Antennas and Propagation最新文献_第9页

Convergence and Stability Analysis of Discontinuous Galerkin Time-Domain Method Based on Improved Energy Technique

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2024-11-25 DOI: 10.1109/TAP.2024.3501416

Shi Chen Zhu;Yan Shi;Jia Hao Zhang;Ming Yu Xi;Peng Wang

{"title":"Convergence and Stability Analysis of Discontinuous Galerkin Time-Domain Method Based on Improved Energy Technique","authors":"Shi Chen Zhu;Yan Shi;Jia Hao Zhang;Ming Yu Xi;Peng Wang","doi":"10.1109/TAP.2024.3501416","DOIUrl":"https://doi.org/10.1109/TAP.2024.3501416","url":null,"abstract":"This communication proposes an improved energy technique for the convergence and stability analysis of upwind-flux-based discontinuous Galerkin time-domain (DGTD) method. By formulating the discrete energy in the energy-based stability analysis technique into a global quadratic form, the global stability condition of the upwind flux-based DGTD method is analytically derived for the first time. In order to achieve the highly efficient stability condition prediction for large and multiscale complicated problems, an elementwise stability condition has been developed by applying matrix decomposition technique into the obtained global stability condition. Due to the sole approximation in the matrix decomposition, the proposed elementwise stability estimation method is more accurate than the traditional energy-based stability analysis techniques, where multiple approximations are employed to achieve the elementwise operations. The numerical examples show the good time step bound estimation accuracy of the global and elementwise stability conditions compared to the widely used energy-based techniques, which significantly enhances the DGTD method’s solution efficiency on time integration.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 1","pages":"689-694"},"PeriodicalIF":4.6,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143106634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 Broadband Millimeter-Wave Fixed-Beam Leaky Wave Antenna Loaded With Printed Quasi-Yagi Radiating Elements for Gain Enhancement

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2024-11-22 DOI: 10.1109/TAP.2024.3493423

Hang Du;Junhong Wang;Wei Zheng;Zheng Li

{"title":"A Broadband Millimeter-Wave Fixed-Beam Leaky Wave Antenna Loaded With Printed Quasi-Yagi Radiating Elements for Gain Enhancement","authors":"Hang Du;Junhong Wang;Wei Zheng;Zheng Li","doi":"10.1109/TAP.2024.3493423","DOIUrl":"https://doi.org/10.1109/TAP.2024.3493423","url":null,"abstract":"In this communication, a novel broadband fixed-beam leaky wave antenna (LWA) suitable for millimeter-wave (mm-Wave) application is proposed. The antenna comprises a ridge gap waveguide (RGW), a set of equal-length microstrip branches, and a printed quasi-Yagi antenna array with inclined arms. Periodic slots are etched on top surface of RGW, which couple energy to microstrip branches from RGW. The microstrip branches then transmit the energy to quasi-Yagi antennas for radiation. Using quasi-Yagi antenna array to enhance the gain makes LWA attractive in mm-Wave applications. Because of the nondispersive characteristics of RGW, the LWA can radiate at a fixed angle within a broadband. By selecting the ratio of period of slots to distance between adjacent radiating elements, the main beam in any forward direction can be realized. For verification, an LWA with a beam direction of 40° is fabricated. The experimental results indicate that the designed antenna achieves excellent fixed-beam radiation performance within the frequency range of 22–37 GHz (50.8%), with only a slight beam deviation of 6° (varies from 37.8° to 43.8°), and a peak gain of 16.5 dBi can be realized. This design shows great potential in wideband mm-Wave applications.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 1","pages":"611-616"},"PeriodicalIF":4.6,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143106548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Compact In-Band Full-Duplex Implantable Antenna for Wireless Capsule Endoscopy 用于无线胶囊内窥镜检查的紧凑型带内全双工植入式天线

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2024-11-22 DOI: 10.1109/TAP.2024.3499367

Abdullah Alshammari;Amjad Iqbal;Abdul Basir;Muath Al-Hasan;Roy B. V. B. Simorangkir;Mourad Nedil;Ismail Ben Mabrouk

{"title":"Compact In-Band Full-Duplex Implantable Antenna for Wireless Capsule Endoscopy","authors":"Abdullah Alshammari;Amjad Iqbal;Abdul Basir;Muath Al-Hasan;Roy B. V. B. Simorangkir;Mourad Nedil;Ismail Ben Mabrouk","doi":"10.1109/TAP.2024.3499367","DOIUrl":"https://doi.org/10.1109/TAP.2024.3499367","url":null,"abstract":"This study presents an ultraminiaturized implantable in-band full-duplex (IBFD) antenna, designed for wireless capsule endoscopy (WCE) applications. Through the integration of semicircular slots and shorting pins, the antenna achieves a small volume of 7.17 mm3 (<inline-formula> <tex-math>$pi times $ </tex-math></inline-formula> (3 mm)<inline-formula> <tex-math>$^{2} times 0.254$ </tex-math></inline-formula> mm), surpassing the state-of-the-art in compactness. Simulations of the proposed design are conducted within a human body phantom to demonstrate the antenna’s operation at 2.45 GHz. Radiation patterns from both ports are nearly omnidirectional, and an isolation level of greater than 28 dB is achieved. Our results indicate that the antenna can establish reliable wireless communication over distances exceeding 8 m, with a 10-dB margin at both ports. The specific absorption rate (SAR) values at 2.45 GHz are found to be 29.7 W/kg at 1 W input power. Experimental validation using minced pork demonstrated a good agreement with simulation results.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 2","pages":"897-905"},"PeriodicalIF":4.6,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Communication Between Holographic Surfaces in Multipath Environments 多路径环境下全息表面之间的通信

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2024-11-22 DOI: 10.1109/TAP.2024.3500787

Stephen C. Creagh;Valon Blakaj;Gabriele Gradoni

引用次数: 0

Millimeter-Wave Beam-Scanning Antenna With Unconventional Array-of-Array Architecture Optimized by Null-Pull Strategy

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2024-11-21 DOI: 10.1109/TAP.2024.3499341

Jian Xu Sun;Jing Feng Yu;Hao Shen Zhu;Wen Jie Feng;Yu Jian Cheng

{"title":"Millimeter-Wave Beam-Scanning Antenna With Unconventional Array-of-Array Architecture Optimized by Null-Pull Strategy","authors":"Jian Xu Sun;Jing Feng Yu;Hao Shen Zhu;Wen Jie Feng;Yu Jian Cheng","doi":"10.1109/TAP.2024.3499341","DOIUrl":"https://doi.org/10.1109/TAP.2024.3499341","url":null,"abstract":"The phased array technologies usually suffer from high fabrication costs, high-density integration, and heat dissipation, which limit their use, particularly for large-scale phased arrays at the millimeter-wave frequency bands. This article introduces the concept of an unconventional array-of-array (AoA) architecture, which addresses these challenges by employing a sparsely excited array topology. The AoA architecture classifies antenna elements into different categories, including active elements, inactive elements, and displaced elements. The active elements are clustered by the 1-to-2 power dividers. Then, the array is divided into multiple super subarrays to maintain the realizability of the phased array at the E-band. After that, the array topology is optimized by the null-pull array partition strategy, which considers the impact of the radiation characteristics of antenna elements, subarrays, and super subarrays on the array partition. Based on these methods, the proposed architecture can ensure the wide-scanning ability of ±60° in the horizontal plane and ±30° in the vertical plane by the amplitude-phase synthesis. Next, the wideband magnetoelectric (ME) dipole with the slot-coupled feedline is designed as the antenna element, which operates from 66 to 76 GHz. Finally, a <inline-formula> <tex-math>$16times 16$ </tex-math></inline-formula> array prototype with 79.63% channel reduction is designed, fabricated, and measured to verify the correctness of the theory and simulation. It offers a promising solution with enhanced engineering feasibility for high-density system integration in millimeter-wave communication systems.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 1","pages":"266-278"},"PeriodicalIF":4.6,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143183852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Millimeter-Wave Beam-Tilting Cavity Backed Slot Array Antenna Based on Nonuniform Slow Wave Substrate Integrated Waveguide

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2024-11-20 DOI: 10.1109/TAP.2024.3498449

Zhijiao Chen;Yu-Xiang Huang;Ziwei Li;Lin-Qian Luo;Jing-Ya Deng

{"title":"Millimeter-Wave Beam-Tilting Cavity Backed Slot Array Antenna Based on Nonuniform Slow Wave Substrate Integrated Waveguide","authors":"Zhijiao Chen;Yu-Xiang Huang;Ziwei Li;Lin-Qian Luo;Jing-Ya Deng","doi":"10.1109/TAP.2024.3498449","DOIUrl":"https://doi.org/10.1109/TAP.2024.3498449","url":null,"abstract":"The 5G communication enabled by the millimeter-wave (mmWave) technology requires flexible beam direction and coverage for diverse applications. The beam-tilting antenna is a low-cost scheme to satisfy the custom beam radiation in the real-life scenario. This communication presents a novel beam-tilting cavity backed slot array antenna based on nonuniform slow wave substrate integrated waveguide (SW-SIW) for mmWave applications. By introducing the nonuniform slow wave (SW) structure into the substrate integrated waveguide (SIW), the phase of the incident wave for the radiating slots is adjusted to generate tilted beam. To validate the concept, two cavity backed slot array antennas are designed with 33° tilted beam. The first cavity-backed array antenna achieves a minimized element spacing of <inline-formula> <tex-math>$0.48lambda _{0}$ </tex-math></inline-formula> and 33° tilted beam with the help of nonuniform SW structure. Based on this subarray, a four-element cavity-backed array antenna achieves the measured 33° tilted beam with a gain of 10.7 dBi and the suppressed the sidelobe level (SLL) of −11 dB. The proposed compact low-profile low-cost beam-tilted array antenna provides a flexible radiation for 5G mmWave communications.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 1","pages":"617-622"},"PeriodicalIF":4.6,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143106545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

3-D Near-Field Passive Radar Imaging Utilizing Phase-Corrected Frequency Domain Inverse Source Reconstructions 基于相位校正频域逆源重构的三维近场无源雷达成像

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2024-11-20 DOI: 10.1109/TAP.2024.3498438

Quanfeng Wang;Matthias M. Saurer;Thomas F. Eibert

{"title":"3-D Near-Field Passive Radar Imaging Utilizing Phase-Corrected Frequency Domain Inverse Source Reconstructions","authors":"Quanfeng Wang;Matthias M. Saurer;Thomas F. Eibert","doi":"10.1109/TAP.2024.3498438","DOIUrl":"https://doi.org/10.1109/TAP.2024.3498438","url":null,"abstract":"A 3-D near-field (NF) passive radar imaging approach for complex environments is presented. It utilizes frequency domain inverse source solutions and spatial image generation by coherent superposition of the automatically phase-corrected single-frequency images. The fields scattered from the imaging scene together with the fields radiated from the illuminating transmitter (Tx) are captured through NF measurements. The single-frequency inverse source solutions reconstruct simultaneously equivalent surface sources for the (Tx), the targets of interest (TOIs), and possibly present echo scatterers, which are subsequently separated due to its spatial localization. Spectral representations are computed for the Tx and TOI sources, and single-frequency 3-D images are obtained by hierarchical disaggregation. Finally, the single-frequency images are coherently superimposed, utilizing an appropriate phase correction methodology. The phase correction is derived from the reconstructed Tx sources and compensates for the spatially varying phase shifts between the Tx and the scatterers, as well as for delays caused by the measurement instrumentation. Both numerical simulations and experimental measurement results are shown to validate the feasibility of the approach.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 1","pages":"504-516"},"PeriodicalIF":4.6,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142993273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Rectenna-Enabled New Paradigm With Hybrid Harmonic Beamforming for Integrated Energy Harvesting, Sensing, and Communications 利用混合谐波波束成形的整流天线新范例，实现集成式能量收集、传感和通信

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2024-11-18 DOI: 10.1109/TAP.2024.3495984

Cheng Zhang;Yuchao Wang;Zebin Zhu;Shihao Sun;Jiupei Shi;Yejun He;Ping Lu;Chaoyun Song

{"title":"Rectenna-Enabled New Paradigm With Hybrid Harmonic Beamforming for Integrated Energy Harvesting, Sensing, and Communications","authors":"Cheng Zhang;Yuchao Wang;Zebin Zhu;Shihao Sun;Jiupei Shi;Yejun He;Ping Lu;Chaoyun Song","doi":"10.1109/TAP.2024.3495984","DOIUrl":"https://doi.org/10.1109/TAP.2024.3495984","url":null,"abstract":"Given the swift advancement of the Internet of Things (IoT) and wireless power transfer (WPT), there is an increasing need for incorporating new functionalities such as wireless communication, recognition, sensing, and localization into existing systems. In response to these evolving demands, a transformative rectenna-based unified platform has been developed. This groundbreaking platform is engineered to harvest ambient wireless power while smartly managing the generated second-order harmonic signals. Illustrating its design, a multifunctional system has been implemented. This system can convert 52.9% of input radio frequency (RF) power into direct current power and achieve a state-of-the-art SH generation efficiency of 10.2% when the input RF power is set at 0 dBm. Concurrently, the harmonic signals can be re-radiated and automatically directed (steered) from −65° to 66°, facilitated by an <inline-formula> <tex-math>$8times 8$ </tex-math></inline-formula> Butler matrix and an 8-way microwave switch, all controlled by a microcontroller unit (MCU). Notably, our platform extends beyond beamforming to embrace a broader spectrum of applications, including backscattering communication, simultaneous wireless information and power transfer (SWIPT), integrated sensing and communications (ISACs), and continuous wave detection. This expansion significantly enhances the scope and capability of rectification technology applications.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 1","pages":"121-134"},"PeriodicalIF":4.6,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Electromagnetic Field on the Sea Surface Radiated by VLF Spaceborne Antenna Arrays VLF星载天线阵辐射海面电磁场

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2024-11-18 DOI: 10.1109/TAP.2024.3495988

Tong He;Hui Ran Zeng;Xue Wei Zhang;Kai Li

引用次数: 0

A Compact Vivaldi Antenna With Enhanced Bandwidth and Mismatch Suppression

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2024-11-18 DOI: 10.1109/TAP.2024.3496083

Jinge Li;Huiqing Zhai;Maosheng Wang

{"title":"A Compact Vivaldi Antenna With Enhanced Bandwidth and Mismatch Suppression","authors":"Jinge Li;Huiqing Zhai;Maosheng Wang","doi":"10.1109/TAP.2024.3496083","DOIUrl":"https://doi.org/10.1109/TAP.2024.3496083","url":null,"abstract":"In this communication, an ultra-wideband, wide-beam Vivaldi antenna is proposed, which applies the presented hybrid high-performance scheme to develop broadband and wide-angle domain detection for radar systems. Based on a comprehensive analysis of equivalent circuits at different frequencies, an impedance regulation technology for the lower band is proposed. More importantly, the application of current analysis methods is used to illustrate the mismatch problem caused by feedline resonance and eradicate it by introducing pin-loading technology. Additionally, the wide-beam property within the broadband is obtained by smartly optimizing the tapered slotline. The proposed antenna comprehensively achieves the multi-performance fusion of miniaturization, ultra-wideband, and wide beam, attaining a bandwidth of 0.5–28 GHz (VSWR <2)> <tex-math>$0.12lambda _{L} times 0.067lambda _{L}$ </tex-math></inline-formula> (<inline-formula> <tex-math>$lambda _{L}$ </tex-math></inline-formula> is the wavelength at the lowest operating frequency), and the beamwidth throughout the entire band is extremely considerable. Measured and simulated results demonstrate that the antenna has great prospects for broadband and wide-angle detection of ultra-small radar systems when used for reception.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 1","pages":"623-628"},"PeriodicalIF":4.6,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143106546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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