IEEE journal of microwaves最新文献_第4页

Realization of Electrically-Switched Dynamic Focused Beam Charging System With a Reconfigurable Phase-Change Cascaded Feed Network for Wireless Power Transfer 利用可重构相位变化级联馈电网络实现用于无线电力传输的电开关动态聚焦光束充电系统

IF 6.9

IEEE journal of microwaves Pub Date : 2024-06-17 DOI: 10.1109/JMW.2024.3412029

Wenyi Shao;Bo Yang;Shinichiro Horiuchi;Naoki Shinohara;Minoru Furukawa

{"title":"Realization of Electrically-Switched Dynamic Focused Beam Charging System With a Reconfigurable Phase-Change Cascaded Feed Network for Wireless Power Transfer","authors":"Wenyi Shao;Bo Yang;Shinichiro Horiuchi;Naoki Shinohara;Minoru Furukawa","doi":"10.1109/JMW.2024.3412029","DOIUrl":"https://doi.org/10.1109/JMW.2024.3412029","url":null,"abstract":"A low-cost electrically-switched focused beam charging system based on a reconfigurable phase-change cascaded feed network is introduced for wireless power transfer application. To realize the reconfigurable feed network, we theoretically decomposed the dynamic focusing phase distribution into two independent terms: a linear phase shift and a quadratic term. A focused aperture-coupled patch array antenna with static focused beam is fabricated to achieve the quadratic term. Different linear phase shifts are achieved by using designed electronic switching module to control the beam port status of Rotman lens, enabling to tilt the static focused beam in the desired direction. Based on full-wave simulation and near-field focusing measurement, we analyzed the dynamic focusing performance of generated focused beam with different beam ports excited at 5.758 GHz in detail. Besides, a LED lighting demo experiment for proposed system is carried out for visually displaying the generated dynamic focused beam. The simulation and experiment results indicate that the generated dynamic focused beam tilts as the excitation state of the beam port changes, and its focal spot can be also observed well on the focal plane. The architecture of proposed focused beam system eliminates the need for expensive phase shifters, resulting in a significant reduction in system costs.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"4 3","pages":"348-359"},"PeriodicalIF":6.9,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10559481","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141630988","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

Uncoupled Digital Radars Creating a Coherent Sensor Network 非耦合数字雷达创建相干传感器网络

IF 6.9

IEEE journal of microwaves Pub Date : 2024-06-14 DOI: 10.1109/JMW.2024.3405633

Julian Aguilar;David Werbunat;Vinzenz Janoudi;Christina Bonfert;Christian Waldschmidt

{"title":"Uncoupled Digital Radars Creating a Coherent Sensor Network","authors":"Julian Aguilar;David Werbunat;Vinzenz Janoudi;Christina Bonfert;Christian Waldschmidt","doi":"10.1109/JMW.2024.3405633","DOIUrl":"https://doi.org/10.1109/JMW.2024.3405633","url":null,"abstract":"Radar networks offer the possibility to overcome the limitations of single sensors. However, without coherent signal processing, the full potential of radar networks cannot be exploited. Therefore, the synchronization of independent radar sensors is crucial in order to mitigate performance degradation due to frequency deviations of uncoupled reference oscillators. Systematically derived synchronization criteria for coupling-induced errors such as sampling frequency offset (SFO), carrier frequency offset (CFO) and symbol timing offset (STO) of uncoupled orthogonal frequency-division multiplexing (OFDM) radar sensors enable to determine hardware specifications, such as the required reference oscillator frequency stability. This aids in the design of digital radar networks and ensures error-free signal processing in advance. The concept of deriving said criteria is applicable to other modulation types used for digital radar sensors. Additionally, signal processing-based error estimation and correction methods are presented. By exploiting standard radar images, namely range profiles and range-Doppler images, the proposed methods estimate and correct any occurring SFO, CFO and STO. Furthermore, by applying the signal processing synchronization methods, they allow for a more lenient radar network design. Measurements using a 77 GHz digital radar demonstrator verify the derived criteria and error estimation and correction methods.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"4 3","pages":"459-472"},"PeriodicalIF":6.9,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10557779","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141630912","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

A Foil Flip-Chip Interconnect With an Ultra-Broadband Bandwidth of 130 GHz and Beyond for Heterogeneous High-End System Designs 为异构高端系统设计提供 130 GHz 及以上超宽带宽的箔片倒装芯片互连器件

IF 6.9

IEEE journal of microwaves Pub Date : 2024-06-13 DOI: 10.1109/JMW.2024.3406919

TIM PFAHLER;ANDRE SCHEDER;ANNA BRIDIER;MATHIAS NAGEL;MARTIN VOSSIEK

{"title":"A Foil Flip-Chip Interconnect With an Ultra-Broadband Bandwidth of 130 GHz and Beyond for Heterogeneous High-End System Designs","authors":"TIM PFAHLER;ANDRE SCHEDER;ANNA BRIDIER;MATHIAS NAGEL;MARTIN VOSSIEK","doi":"10.1109/JMW.2024.3406919","DOIUrl":"https://doi.org/10.1109/JMW.2024.3406919","url":null,"abstract":"This paper presents an ultra-broadband, low-loss, flexible liquid crystal polymer substrate-to-substrate interconnect with a bandwidth of more than 130 GHz. The transition discontinuity was minimized by maintaining both the reference impedance and the electromagnetic field conformity across the transition from alumina substrate to flip-chip foil. Therefore, more than 600 \u0000<inline-formula><tex-math>$mu$</tex-math></inline-formula>\u0000m long flexible flip-chip interconnects can be realized for bridging millimeter-wave sub-modules and enabling ultra-broadband heterogeneous system design with a measured return loss of above 20 dB. Furthermore, the interconnect can realize ramp interconnections between monolithic microwave integrated circuits or substrates with different substrate heights due to the flexible foil substrate. Minimum parasitic radiation at the transition is realized through a closely spaced signal-to-ground connection. Furthermore, the robustness of the proposed interconnect against lateral misalignment in the assembly is presented through simulation and measurement. An outstanding insertion loss of less than 0.3 dB per transition over a bandwidth of more than 130 GHz is shown.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"4 3","pages":"404-415"},"PeriodicalIF":6.9,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10557560","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141631084","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

A Groove Gap Waveguide Feeding Network for Dual-Circularly Polarized Antenna Arrays 用于双圆极化天线阵列的槽隙波导馈电网络

IF 6.9

IEEE journal of microwaves Pub Date : 2024-06-12 DOI: 10.1109/JMW.2024.3404832

Zeina Al Masri;Ahmad Jabri;Youssef Tawk;Joseph Costantine

{"title":"A Groove Gap Waveguide Feeding Network for Dual-Circularly Polarized Antenna Arrays","authors":"Zeina Al Masri;Ahmad Jabri;Youssef Tawk;Joseph Costantine","doi":"10.1109/JMW.2024.3404832","DOIUrl":"https://doi.org/10.1109/JMW.2024.3404832","url":null,"abstract":"This paper presents a groove gap waveguide structure designed to serve as a feeding network for dual circularly polarized antenna arrays in the millimeter wave spectrum (28-32 GHz). The proposed structure comprises four groove gap waveguide elements arranged in a cross-shaped configuration. A turnstile integrated into the middle position of the structure divides the incoming RF signal into these four waveguide elements. Four matching posts are incorporated at the end of the various groove gap waveguide elements to route each corresponding RF signal to four WR-28 waveguide sections. These four sections form the output ports of the feeding network. The appropriate design of the pin distributions along the four groove gap elements allows the entire feeding network to achieve a specific phase shift between the output ports. As a proof of concept, the proposed feeding network is connected to a dual circularly polarized antenna array composed of four sub-arrays. Two of these sub-arrays emit right-handed circularly polarized waves, while the other two are designed to provide left-handed circularly polarized waves. A prototype of the feeding network demonstrates its ability to produce the needed circularly polarized radiation for a given distribution of the pins along the various groove gap elements. The results show that the feeding network can achieve an insertion loss as low as 0.55 dB with a good impedance matching across the entire operational bandwidth. In addition, when the fabricated feeding network is connected to the dual-circularly polarized antenna prototype, a maximum realized gain of 15.14 dBic is obtained.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"4 3","pages":"512-520"},"PeriodicalIF":6.9,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10555289","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141631081","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

The Impact of a Taper Impedance Transformation on the TRL De-Embedding Error 锥形阻抗变换对 TRL 解嵌误差的影响

IF 6.9

IEEE journal of microwaves Pub Date : 2024-06-04 DOI: 10.1109/JMW.2024.3405018

João Louro;Luís C. Nunes;Filipe M. Barradas;Pedro M. Cabral;José C. Pedro

引用次数: 0

Modeling Transmission Lines With Open Boundaries via Infinite Mapping Layer 通过无限映射层为具有开放边界的输电线路建模

IF 6.9

IEEE journal of microwaves Pub Date : 2024-04-24 DOI: 10.1109/JMW.2024.3385047

Gines Garcia-Contreras;Juan Córcoles;Jorge A. Ruiz-Cruz;Matteo Oldoni;Lorenzo Codecasa;Gian Guido Gentili

引用次数: 0

Simulation Conditions to Compute the Dispersion Diagram of 3D Periodic Structures 计算三维周期结构色散图的模拟条件

IF 6.9

IEEE journal of microwaves Pub Date : 2024-04-22 DOI: 10.1109/JMW.2024.3384418

Hairu Wang;Oskar Zetterstrom;Pilar Castillo-Tapia;Francisco Mesa;Oscar Quevedo-Teruel

{"title":"Simulation Conditions to Compute the Dispersion Diagram of 3D Periodic Structures","authors":"Hairu Wang;Oskar Zetterstrom;Pilar Castillo-Tapia;Francisco Mesa;Oscar Quevedo-Teruel","doi":"10.1109/JMW.2024.3384418","DOIUrl":"https://doi.org/10.1109/JMW.2024.3384418","url":null,"abstract":"In this work, we examine the methodology for numerically computing the dispersion diagram of three-dimensional periodic structures using commercial electromagnetic simulators. Examples of periodic structures based on body-centered cubic, face-centered cubic, and monoclinic lattices are used to illustrate this methodology. We first outline the characteristics of these structures in both physical and reciprocal spaces from a theoretical point of view. On this basis, we provide a comprehensive explanation of how to adjust the setting in simulation software commonly used in microwave engineering to generate the dispersion diagrams of these structures. The appropriate simulation conditions are tabulated to serve as a further guide for other researchers. This study also explores the influence of the elements of the unit cell on the dispersion characteristics. Additionally, we evaluate and contrast the dispersion properties of identical periodic elements when having simple cubic, body-centered cubic, and face-centered cubic arrangements. We found that symmetries, such as those seen in body-centered cubic and face-centered cubic arrangements, can improve the isotropy and maintain low-dispersion characteristics over a wider frequency range. The monoclinic structure is also taken as an example to demonstrate that the reported analysis method can be applied to the dispersion analysis of other more complex noncubic lattices. Our findings offer useful information for the examination and engineering of three-dimensional periodic structures, which can be used to design microwave and antenna devices.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"4 3","pages":"568-580"},"PeriodicalIF":6.9,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10506402","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141630999","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

Equivalent Circuit Modeling of a Novel Reconfigurable Metasurface With Independent Control of Amplitude and Phase Based on Floquet Modal Expansion 基于 Floquet 模态展开、可独立控制振幅和相位的新型可重构元面的等效电路建模

IF 6.9

IEEE journal of microwaves Pub Date : 2024-04-10 DOI: 10.1109/JMW.2024.3381986

Xin You;Panagiotis Kosmas

引用次数: 0

IEEE Journal of Microwaves Table of Contents IEEE 《微波杂志》目录

IEEE journal of microwaves Pub Date : 2024-04-03 DOI: 10.1109/JMW.2024.3371617

引用次数: 0

IEEE Journal of Microwaves Information for Authors IEEE 《微波杂志》作者须知

IEEE journal of microwaves Pub Date : 2024-04-03 DOI: 10.1109/JMW.2024.3371615

引用次数: 0