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| 1 | Reconfigurable Intelligent Surfaces: Design, Implementation, and Practical Demonstration显示文摘Metasurfaces,ultrathin two-dimensional version of metamaterials,have attracted tremendous attention due to their exotic capabilities to freely manipulate electromagnetic waves.By incorporating various tunable materials or elements into metasurface designs,reconfigurable metasurfaces and related metadevices with functionalities controlled by external stimuli can be realized,opening a new avenue to achieving dynamic manipulation of electromagnetic waves.Recently,based on the tunable metasurface concept,reconfigurable intelligent surfaces(RISs)have received significant attention and have been regarded as a promising emerging technology for future wireless communication due to their potential to enhance the capacity and coverage of wireless networks by smartly reconfiguring the wireless propagation environment.Here,in this article,we first focus on technical issues of RIS system implementation by reviewing the existing research contributions,paying special attention to designs in the microwave regime.Then,we showcase our recent attempts to practically demonstrate RIS systems in real-world applications,including deploying reflective RIS systems in indoor scenarios to enhance the wireless network coverage and utilizing intelligent omni-metasurfaces to improve both indoor and through-wall wireless communication quality.Finally,we give our own perspectives on possible future directions and existing challenges for RISs toward a truly commercial intelligent technology platform. | Yijun Feng Qi Hu Kai Qu Weixu Yang Yilin Zheng Ke Chen | 2023 | Electromagnetic Science2023，1，2： | 2 |
| 2 | Hybrid synchronization scheme for multicarrier communication systems显示文摘 | Kim ES Park SK | 2012 | Journal of Electromagnetic Engineering and Science2012，12，3： | 1 |
| 3 | Electromagnetic Metamaterials:From Classical to Quantum显示文摘Electromagnetic(EM)metamaterials are artificially engineered materials with extraordinary EM properties beyond the limit of existing nat-ural materials;thus,they have been widely used to manipulate the amplitude,phase,polarization,frequency,wave vector,waveform,and other degrees of freedom of EM waves in many practical applications.In this review,we will summarize recent advances in this flourishing field of EM metamateri-als,first from the perspectives of the classical regime and then the quantum regime.More specifically,in the classical regime,traditional EM metamate-rials are based on effective medium theory,and they have limitations of fixed functionalities and an inability to control EM waves in real time.To over-come these restrictions,information metamaterials,including digital coding and field-programmable metamaterials,have recently been proposed to en-able real-time manipulation of EM waves based on the theory of information science.By taking advantage of information metamaterials and artificial in-telligence,another crucial milestone of intelligent metamaterials has been achieved in the development of classical metamaterials.After overviewing EM metamaterials in the classical regime,we discuss cutting-edge studies of EM metamaterials in the quantum regime,namely,topological metamaterials and quantum metamaterials.These nonclassical metamaterials show excellent ability to flexibly manipulate the quantum states,and they extend the clas-sical information metamaterials into the field of quantum information science.At the end of this review,we will give some conclusions and perspectives on this fast-evolving field. | Jianwei You Qian Ma Lei Zhang Che Liu Jianan Zhang Shuo Liu Tiejun Cui | 2023 | Electromagnetic Science2023，1，1： | 1 |
| 4 | Hybrid synchronization scheme for multi carrier communication systems显示文摘 | KIM E S PARK S K | 2012 | Journal of Electromagnetic Engineering and Sciences2012，12，3： | 1 |
| 5 | Fabrication of HighFrequency Packages for K-Band CMOS FMCW Radar Chips Using RF Via Structures显示文摘 | Shin I H Park Y M Kim D W | 2012 | The Journal of Korean Institute of Electromagnetic Engineering and Science2012，23，11： | 1 |
| 6 | A miniaturized aperture-coupled multilayer hairpin bandpass filter显示文摘 | MOON H U CHOI S U YUN S W | 2008 | NAL of the Korean Institute of Electromagnetic Engineering and Science2008，8，1： | 1 |
| 7 | Channel characterization and transmission efficiency analysis of wireless body area network显示文摘 | AHN B-J SONG S-M KIM S-W | 2012 | The Journal of Korean Institute of Electromagnetic Engineering and Science2012，23，8： | 1 |
| 8 | Application of transformation electromagnet ics to cloak design and reduction of radar cross section显示文摘 | Mittra R Zhou Y | 2013 | Jour- nal of Electromagnetic Engineering and Science2013，13，2： | 1 |
| 9 | Electromagnetic wave shielding effective- ness measurement method of EMP pro-tection facility显示文摘 | Seo M Chi S Kim Y | 2014 | The Journal of Korean Institute of Electromagnetic Engineering and Science2014，25，5： | 1 |
| 10 | Electromagnetic Wave Tailoring:From One Dimension to Multiple Dimensions显示文摘Metasurfaces,known as arrays of subwavelength antennas,provide a wide range of options for controlling electromagnetic waves and effectively reducing the size and complexity of electromagnetic devices.Metasurfaces can manipulate five degrees of freedom of electromagnetic waves:amplitude,wavelength,polarization,phase,and orbital angular momentum;these are customized to provide a variety of remarkable functionalities,including metalenses and meta-holograms.With the advancement of simultaneously manipulating two or more degrees of freedom of the electromagnetic field,there has been a significant increase in the amount of information that electromagnetic waves can carry.The wavefront can be precisely tailored for specific applications,facilitating new possibilities for innovative applications with high performance and diverse functionalities,such as full-color vectorial meta-holograms achieved by a single-layer metasurface.This review briefly overviews the latest developments in metasurfaces,categorizing them based on their various degrees of freedom used to manipulate the electromagnetic waves.The use of metasurfaces to control electromagnetic waves from one dimension to multiple dimensions is systematically explored.The challenges and opportunities for future research are discussed. | Jing Cheng Zhang Geng-Bo Wu Mu Ku Chen Xiaoyu Che Yao Liang Din Ping Tsai Chi Hou Chan | 2023 | Electromagnetic Science2023，1，3： | 1 |
| 11 | The design of calculable standard dipole antennas in the fre- quency range of 1-3 GHz 显示文摘 | KIM Ki-Chai KIM Sang-Myeong KWON Jae-Yong | 2012 | Journal of electromagnetic engi- neering and science2012，12，1： | 1 |
| 12 | FOREWORD显示文摘THE first ise of the new journal entitled Electromagnetic Science was fficially released on March 31,2023.It is dedicated to exploring and advancing the fascinating field of ectromagnetic theory and its numerous appli-cations.As an intermational academic journal,the initiative behind Electromagnetic Science is to establish a platform to serve scientists,engineers,and industry for exchanging academic insights and promoting global ecology in the field of electromagnetics. | | 2023 | Electromagnetic Science2023，1，1： | 0 |
| 13 | Differential Antennas: Fundamentals and Applications显示文摘Driven by the great demand for highly integrated wireless system-on-chip and system-in-package devices,there has recently been increas-ing interest in the research and development of differential antennas.Many studies on the design,analysis,and measurement of differential antennas have been published.This paper presents an overview of the fundamentals and applications of differential antennas.First,it compares differential to bal-anced and single-ended to unbalanced antennas and explains why the new terms(differential and single-ended antennas)should be adopted instead of the old terms(balanced and unbalanced antennas).Second,it addresses the quantitative relationship between a differential antenna and its single-ended counterpart,which is important and useful because the properties of either the differential or single-ended antenna can be determined from the other with a known solution.Third,it describes how differential antennas can be measured,with a special emphasis on the balun method.Fourth,it classifies dif-ferential antennas into wire,slot,microstrip,printed,and dielectric resonator antennas to better present their suitability and functionality.Fifth,it pro-vides application examples of differential antennas from simple discrete wire to sophisticated microstrip designs.Finally,it is argued that the old paradigms of lower gains and bulkier sizes of differential antennas as compared to single-ended antennas do not always hold true;for instance,differen-tial microstrip patch antennas can possess comparable or even smaller sizes and higher gain values than single-ended microstrip patch antennas. | Yueping Zhang | 2023 | Electromagnetic Science2023，1，1： | 0 |
| 14 | Pulse Generation and Compression Techniques for Microwave Electronics and Ultrafast Systems显示文摘Ultrabroadband systems and ultrafast electronics require the generation,transmission,and processing of high-quality ultrashort pulses rang-ing from nanoseconds(ns)to picoseconds(ps),which include well-established and emerging applications of time-domain reflectometry,arbitrary wave-form generation,sampling oscilloscopes,frequency synthesis,through-wall radar imaging,indoor communication,radar surveillance,and medical radar detection.Impulse radar advancements in industrial,scientific,and medical(ISM)domains are,for example,driven by ns-scale-defined ultrawideband(UWB)technologies.Nevertheless,the generation of ultrashort ps-scale pulses is highly desired to achieve unprecedented performances in all these ap-plications and future systems.However,due to the variety and applicability of different pulse generation and compression techniques,the selection of optimum or appropriate pulse generators and compressors is difficult for practitioners and users.To this end,this article aims to provide a comprehen-sive overview of ultrashort ns and ps pulse generation and compression techniques.The proposed and developed pulse generators available in the litera-ture and on the market,which are characterized by their corresponding pros and cons,are also explored.The theoretical analysis of pulse generation us-ing a nonlinear transmission line(NLTL)presented in the literature is briefly explained as well.Additionally,a holistic overview of these pulse genera-tors from the perspective of applications is given to describe their utilization in practical systems.All of these techniques are well summarized and com-pared in terms of fundamental pulse parameters,and research gaps in specified areas are highlighted.A thorough discussion of previous research work on various topologies and techniques is presented,and potential future directions for technical advancement are examined. | Ke Wu MuhibUr Rahman | 2023 | Electromagnetic Science2023，1，1： | 0 |
| 15 | Transmitarray and Reflectarray Antennas Based on a Magnetoelectric Dipole Antenna显示文摘This paper presents a review of transmitarray(TA)and reflectarray(RA)antennas based on the magnetoelectric(ME)dipole antenna struc-ture.First,the basic operating principles of ME dipole,TA and RA antennas are introduced.Next,ME-dipole-based TA and RA designs are discussed,with four antenna designs presented in detail,including two fixed-beam TA designs with high aperture efficiencies and two reconfigurable designs with a beam-scanning capability.The techniques involved in these designs are also analyzed to provide insight into the ME-dipole-based TA and RA designs.The simulated and measured results of the reported prototypes show that the introduction of the ME dipole antenna significantly broadens the band-widths of the TA and RA antennas not only in the fixed-beam designs but also in the reconfigurable designs.The ME-dipole-based TA and RA designs reported in this paper are compared to highlight their benefits and limitations.Future possible research directions and challenges are also discussed. | Kwai-Man Luk Bingjie Xiang | 2023 | Electromagnetic Science2023，1，1： | 0 |
| 16 | Multimode Resonator Technique in Antennas:A显示文摘During the past several decades,the multimode resonator(MMR)technique has been extensively investigated and widely used,with successful exploration of a variety of high-performance patch antennas,slot antennas,dielectric resonant antennas,dipole antennas,and so on.In this review paper,we summarize the research milestones for these MMR antennas worldwide as one of the most contributive research teams in this field.First,the basic working principles of the MMR technique are clearly illustrated and studied,including mode excitation,mode suppression,impedance performance improvement,and radiation performance improvement.Next,the research topics regarding impedance performance enhancement,i.e.,widebandwidth operation,multibandwidth operation,and mutual coupling reduction,based on the MMR method are intensively described.After that,the relevant works on radiation performance enhancement,i.e.,high-gain,wide-beamwidth,multibeam,multipolarization,low-cross-polarization,filtering-response,and leaky-wave antennas,based on the MMR method are extensively illustrated.By using this technique,several ideas about operating frequency reallocation,electric-field null control,radiation pattern reshaping,and efficiency null generation of the antennas are proposed and demonstrated by our team for the first time.In addition,the application of the MMR technique for wireless communication systems is introduced and presented,such as implant communication,wireless power transfer,and multiple-input multiple-output communication.With these arrangements,exploration and reporting of more interesting and useful MMR design methods can be anticipated in the future. | Lei Zhu Nengwu Liu | 2023 | Electromagnetic Science2023，1，1： | 0 |
| 17 | Regulation and Control of Electromagnetic Field in Radio-Frequency Circuits and Systems显示文摘Since the first demonstrations of radio-frequency(RF)circuits,the physics of the electromagnetic(EM)field and its regulation and control with codesigned circuits,have become essential competencies of RF circuit designers.Leveraging advanced regulation or control methods,numerous high-performance circuits have been developed at RF and millimeter-wave(mm-wave)frequencies.Three main methods of electromagnetic regulation have been widely utilized,namely,the separation of electric and magnetic coupling paths,the manipulation of electromagnetic energy through the coupling of multiple tanks or multiple resonators,and the regulation of electromagnetic fields in air cavities or meta-substrates.The separated coupling paths of electric and magnetic fields provide guidance for designing a high-performance filter topology with a quasielliptical response through additional zeros.The manipulation of the EM field through electrical and magnetic intercouplings of multitanks or multiresonators,such as are used in oscillators,power amplifiers(PAs),etc.,results in remarkable power efficiency,size reduction,and wide bandwidth.The regulation of electromagnetism through an air cavity,patterned substrate,or metasubstrate reduces dielectric losses and size,especially when using a substrate integrated suspended line(SISL)platform.Many excellent circuits have been reported based on SISL with low loss,high integration,and self-packaging.Here,we present state-of-the-art cases that demonstrate the benefits of EM field regulation and control. | Kaixue Ma | 2023 | Electromagnetic Science2023，1，3： | 0 |
| 18 | An Electromagnetic Perspective of Artificial Intelligence Neuromorphic Chips显示文摘The emergence of artificial intelligence has represented great potential in solving a wide range of complex problems.However,traditional general-purpose chips based on von Neumann architectures face the“memory wall”problem when applied in artificial intelligence applications.Based on the efficiency of the human brain,many intelligent neuromorphic chips have been proposed to emulate its working mechanism and neuron-synapse structure.With the emergence of spiking-based neuromorphic chips,the computation and energy efficiency of such devices could be enhanced by integrating a variety of features inspired by the biological brain.Aligning with the rapid development of neuromorphic chips,it is of great importance to quickly initiate the investigation of the electromagnetic interference and signal integrity issues related to neuromorphic chips for both CMOS-based and memristor-based artificial intelligence integrated circuits.Here,this paper provides a review of neuromorphic circuit design and algorithms in terms of electromagnetic issues and opportunities with a focus on signal integrity issues,modeling,and optimization.Moreover,the heterogeneous structures of neuromorphic circuits and other circuits,such as memory arrays and sensors using different integration technologies,are also reviewed,and locations where signal integrity might be compromised are discussed.Finally,we provide future trends in electromagnetic interference and signal integrity and outline prospects for upcoming neuromorphic devices. | Er-Ping Li Hanzhi Ma Manareldeen Ahmed Tuomin Tao Zheming Gu Mufeng Chen Quankun Chen Da Li Wenchao Chen | 2023 | Electromagnetic Science2023，1，3： | 0 |
| 19 | Aperture-Shared Radiation Surface:A Promising Technique for Multifunctional Antenna Array Development显示文摘In the development of a multifunctional and multi-standard analog frontend module in emerging and future wireless systems,multifunction antenna array is an indispensable component.To this end,the aperture-shared technique has come of age,and demonstrated significant advantages in the cost-effective design of efficient,compact,multiband,multibeam,and polarization-diversified antenna arrays,particularly with high frequency ratios.In this paper,various antenna topologies and surface architectures based on this technique,which have been proposed and developed thus far for a wide variety of applications,are reviewed,examined,and categorized to highlight the nature of electromagnetic aperture-shared schemes and merits.Finally,we briefly discuss future research directions in this context for multifunction millimeter-wave and terahertz wireless systems development. | Amirhossein Askarian Ke Wu | 2023 | Electromagnetic Science2023，1，3： | 0 |
| 20 | Electromagnetic Technology for Vacuum Metrology in the Typical Development of a Metrological-Grade Spinning Rotor Gauge显示文摘As the most precise viscous vacuum gauge,the spinning rotor gauge is widely used in the aerospace,nuclear,semiconductor,and other fields because of its excellent accuracy and chemical inertness.Herein,a metrological-grade spinning rotor vacuum gauge is developed,and its performance is evaluated.It can be used for international comparison of vacuum standards and construction of national vacuum measurement traceability and transmission systems.This paper presents the design of a single-degree-of-freedom permanent magnet-biased rotor suspension system,a high-speed rotary stepper drive system,a rotational angular velocity determination system,a lateral damping system,and a transducer in detail.The change in residual drag is less than 0.49%after 50 minutes of start-up.There is good consistency and linearity in the range of 9.1727×10^(−5)Pa to 1.2081 Pa. | Detian Li Meiru Guo Zhenhua Xi Huzhong Zhang Bowen Li | 2023 | Electromagnetic Science2023，1，3： | 0 |
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