IEEE journal of microwaves最新文献_第9页

Design of a Fully Integrated Power Amplifier at Ka-V Band for 5G Transceivers 为 5G 收发器设计 Ka-V 波段全集成功率放大器

IF 6.9

IEEE journal of microwaves Pub Date : 2024-09-10 DOI: 10.1109/JMW.2024.3449421

Avinash Singh;Amit Singh;Bargaje Ganesh Pandurang;Karun Rawat

引用次数: 0

Design and Verification of a Versatile and Lightweight Radar Platform for High-Resolution Imaging of Glacial Subsurface Structures 设计并验证用于冰川地表下结构高分辨率成像的多功能轻型雷达平台

IF 6.9

IEEE journal of microwaves Pub Date : 2024-09-09 DOI: 10.1109/JMW.2024.3445997

Lena Krabbe;Niklas Haberberger;Michael Stelzig;Felix Pfluger;Matthias Braun;Martin Vossiek

{"title":"Design and Verification of a Versatile and Lightweight Radar Platform for High-Resolution Imaging of Glacial Subsurface Structures","authors":"Lena Krabbe;Niklas Haberberger;Michael Stelzig;Felix Pfluger;Matthias Braun;Martin Vossiek","doi":"10.1109/JMW.2024.3445997","DOIUrl":"https://doi.org/10.1109/JMW.2024.3445997","url":null,"abstract":"Ground penetrating radar (GPR) is an effective tool in cryosphere and climate research, as it can provide detailed, non-invasive insights into ice thickness, internal structures, and subglacial conditions. This technology uncovers critical data on glacier dynamics and climate change impacts, enhancing our understanding of past, present, and future environmental shifts. In this contribution, the design and experimental verification of a lightweight, surface-based GPR platform intended for imaging glacial subsurface structures is presented. Therein, the system requirements for glaciological applications and the design implications for the developed platform and its components are described. In addition, a detailed overview of the utilized radar system, including the 3D-printed horn antennas and the localization concept, is provided. Furthermore, the imaging properties of the developed system are introduced, and the processing chain to retrieve subsurface images from the raw radar data using synthetic aperture radar concepts is presented. The platform was tested during a field campaign in March 2024 on the Jungfraufirn glacier in Switzerland. The data from this field campaign provide detailed imaging results of the glacier subsurface, including its stratification with high resolution and contrast. Moreover, a comparison of our rather broadband ultra-high frequency GPR measurements to the data acquired with a high-performance state-of-the-art low frequency GPR system is provided. Finally, this contribution concludes with current limitations and an outlook on future improvements.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"4 4","pages":"871-880"},"PeriodicalIF":6.9,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10669622","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142825953","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

From RainCube to INCUS: Using Miniaturized Microwave Instruments to Analyze the Dynamics of Tropical Convection 从雨立方到 INCUS：利用微型微波仪器分析热带对流动力学

IF 6.9

IEEE journal of microwaves Pub Date : 2024-08-28 DOI: 10.1109/JMW.2024.3438126

Ziad S. Haddad;Ousmane O. Sy

{"title":"From RainCube to INCUS: Using Miniaturized Microwave Instruments to Analyze the Dynamics of Tropical Convection","authors":"Ziad S. Haddad;Ousmane O. Sy","doi":"10.1109/JMW.2024.3438126","DOIUrl":"https://doi.org/10.1109/JMW.2024.3438126","url":null,"abstract":"This narrative tells the story of how NASA's INCUS (INvestigation of Convective UpdraftS) mission was conceived and designed, to identify and flesh out a scientific investigation that would be conducted using newly developed miniaturized weather radars and radiometers. Different considerations led to the conception of a new observation strategy, consisting of deploying identical replicas of the latest-technology instruments in a tight convoy in low Earth orbit. The scientific goal of this concept is to observe systematically and globally the main thermo-dynamical process in convective storms: the vertical transport of air and moisture from the surface up to the upper troposphere. How the different elements of the concept were fleshed out is recounted with specific attention to the top-level requirements placed on the microwave instruments and to their scientific justification. One of the main “morals” of the story is to highlight the need to pay close attention to the sufficiency of top-level requirements in addition to their necessity, and not to hesitate to add explicit requirements when expanding the capabilities of a heritage instrument in order to ensure that the top-level requirements are indeed sufficient as well as necessary.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"4 4","pages":"858-870"},"PeriodicalIF":6.9,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10654531","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142825863","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

Advancements and Challenges in Electrical Impedance Myography (EIM): A Comprehensive Overview of Technology Development, Applications in Sports Health, and Future Directions 电阻抗肌电图 (EIM) 的进步与挑战：技术发展、运动健康应用和未来方向的全面概述

IF 6.9

IEEE journal of microwaves Pub Date : 2024-08-09 DOI: 10.1109/JMW.2024.3427710

Pan Xu;Junwei Zhou;Zhizhang David Chen;Xudong Yang;Hongli Yan;Željka Lučev Vasić;Mario Cifrek;Sio Hang Pun;Mang I Vai;Yueming Gao

{"title":"Advancements and Challenges in Electrical Impedance Myography (EIM): A Comprehensive Overview of Technology Development, Applications in Sports Health, and Future Directions","authors":"Pan Xu;Junwei Zhou;Zhizhang David Chen;Xudong Yang;Hongli Yan;Željka Lučev Vasić;Mario Cifrek;Sio Hang Pun;Mang I Vai;Yueming Gao","doi":"10.1109/JMW.2024.3427710","DOIUrl":"https://doi.org/10.1109/JMW.2024.3427710","url":null,"abstract":"ElectricalImpedance Myography (EIM) is an innovative, non-invasive technique offering a convenient means of localized exogenous electrophysiological recording. By measuring muscle impedance parameters, this method characterizes the physiological state of muscles, functioning as a biomarker for muscle contractility, injuries, and the progression of neuromuscular diseases. This paper provides an overview of the current state of EIM technology development, along with modeling and data analysis methods, focusing on their application requirements. It further highlights the advancements in EIM research within the realm of sports health, emphasizing its efficacy in identifying injuries and monitoring wound healing, and discusses existing technological limitations. Additionally, the paper explores future research directions. Serving as a transient biosensor during physical activity, EIM holds significant potential in sports health. It presents a promising alternative to invasive and costly clinical assessment methods, positioning itself as a viable personal monitoring tool for both professional athletes and fitness enthusiasts. Nevertheless, the resolution of technical challenges and the establishment of industry-standard implementation programs are essential prerequisites for EIM to evolve into a standard clinical assessment tool.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"4 4","pages":"605-625"},"PeriodicalIF":6.9,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10632561","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142434578","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 Noninvasive Vein Finder Based on a Tuned Microwave Loop Resonator 基于调谐微波环路谐振器的无创静脉探测仪

IF 6.9

IEEE journal of microwaves Pub Date : 2024-07-31 DOI: 10.1109/JMW.2024.3427726

Sen Bing;Khengdauliu Chawang;J.-C. Chiao

{"title":"A Noninvasive Vein Finder Based on a Tuned Microwave Loop Resonator","authors":"Sen Bing;Khengdauliu Chawang;J.-C. Chiao","doi":"10.1109/JMW.2024.3427726","DOIUrl":"https://doi.org/10.1109/JMW.2024.3427726","url":null,"abstract":"In this work, a noninvasive vein finder based on a tuned microwave loop resonator has been demonstrated to locate the vein in a cost-effective, reliable, and convenient way, addressing the challenges in venipuncture, especially in cases of difficult venous access. The sensor is a tuned loop resonator with a radius of 4.7 mm, incorporating a self-tuning pad and operating at 3.25 GHz with a reflection coefficient of \u0000<inline-formula><tex-math>$-$</tex-math></inline-formula>\u000058 dB. It provides localized high-intensity electric fields that penetrate into tissues with sufficient depths. The sensor is based on the detection of electromagnetic resonant frequency shift that is susceptible to the distinctive dielectric properties of blood vessels inside the skin. The extensive simulations and experimental measurements on male and female subjects validate its effectiveness with consistent and distinguishable resonant frequency shifts. The sensor's stability across different forearm locations, its ability to differentiate between arteries and veins, and its adherence to safety regulations with low-power microwave signals contribute to its robustness. It shows great promise for improving venipuncture procedures, reducing complications, and enhancing patient comfort in a low-cost and noninvasive way.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"4 4","pages":"626-638"},"PeriodicalIF":6.9,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10616378","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142408779","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

GaN System-on-Chip: Pushing the Limits of Integration and Functionality 氮化镓片上系统：突破集成和功能极限

IF 6.9

IEEE journal of microwaves Pub Date : 2024-07-30 DOI: 10.1109/JMW.2024.3429615

Reza Nikandish

{"title":"GaN System-on-Chip: Pushing the Limits of Integration and Functionality","authors":"Reza Nikandish","doi":"10.1109/JMW.2024.3429615","DOIUrl":"https://doi.org/10.1109/JMW.2024.3429615","url":null,"abstract":"In this article, we present a futuristic perspective on GaN integrated circuit technology, discuss technical challenges that hinder leveraging the capabilities of the GaN process, and provide recommendations to push its limits of integration and functionality. We explore the limitations of current GaN processes at the process, circuit, and system levels, and present some potential developments to mitigate these limitations. The most recent progresses in GaN circuits has been inspired by the quest for higher performance, which has influenced innovations in circuit and system architectures. A promising solution is to pursue a \u0000<italic>functionality-oriented design paradigm\u0000 in parallel with the traditional \u0000<italic>performance-oriented design approach\u0000. A review of state-of-the-art GaN transceivers indicates that most comprise merely a power amplifier (PA), a low-noise amplifier (LNA), and transmit-receive (T/R) switches. We propose three disruptive directions that potentially can reshape the future of highly integrated GaN systems, including a digital PA, an integrated sensing and communication (ISAC) transceiver, and GaN-CMOS chiplets in package, and investigate their prospects and challenges.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"4 4","pages":"594-604"},"PeriodicalIF":6.9,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10614650","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142408732","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 79 GHz SiGe Doherty Power Amplifier Suitable for Next-Generation Automotive Radar 适用于下一代汽车雷达的 79 GHz SiGe Doherty 功率放大器

IF 6.9

IEEE journal of microwaves Pub Date : 2024-07-19 DOI: 10.1109/JMW.2024.3419430

Jan Schoepfel;Tobias T. Braun;Julia Hellwig;Holger Rücker;Nils Pohl

{"title":"A 79 GHz SiGe Doherty Power Amplifier Suitable for Next-Generation Automotive Radar","authors":"Jan Schoepfel;Tobias T. Braun;Julia Hellwig;Holger Rücker;Nils Pohl","doi":"10.1109/JMW.2024.3419430","DOIUrl":"https://doi.org/10.1109/JMW.2024.3419430","url":null,"abstract":"The number of environment-detecting sensors inside cars continuously increases, to enable failsafe autonomous driving. With more sensors, the probability of performance degrading interferences increases. A promising solution to the interferences is orthogonal frequency division multiplex (OFDM) radar. Due to the complex modulation scheme, the analog front end, especially the power amplifier in the transmitter, has to deal with a high peak-to-average power ratio. Therefore, conventional amplifiers have to be operated in power back-off to maintain linear operation at the drawback of reduced power-added efficiency. To mitigate this problem, a Doherty power amplifier for an automotive radar transceiver is proposed. In this work, we present a design methodology for an integrated Doherty amplifier for automotive radar applications, focussing on the theory of operation by analyzing transistor-level simulations. Small- and large signal simulations analyze the concept of load modulation for a Doherty amplifier in the automotive frequency band from 76--81 GHz. Using a fully differential transmission-line-based approach, we showcase the superior performance of an automotive Doherty amplifier over an conventional state-of-the-art reference amplifier. In measurements, the proposed Doherty amplifier achieves a saturated output power of 17.2 dBm with a peak power-added efficiency of 11.6%. When operating in 6 dB back-off, the PAE still amounts to 6.1%. Thereby we propose to improve conventional automotive power amplifiers by incorporating them into a Doherty amplifier.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"4 4","pages":"721-732"},"PeriodicalIF":6.9,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10605125","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142408817","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

Switchless Multi-Octave Tune-All BPF Manifold Using Low-Pass/High-Pass Diplexer Junctions 使用低通/高通双工器连接的无开关多倍频程全调谐 BPF 歧管

IF 6.9

IEEE journal of microwaves Pub Date : 2024-07-18 DOI: 10.1109/JMW.2024.3421535

Mohammed R. A. Nasser;Dimitra Psychogiou

{"title":"Switchless Multi-Octave Tune-All BPF Manifold Using Low-Pass/High-Pass Diplexer Junctions","authors":"Mohammed R. A. Nasser;Dimitra Psychogiou","doi":"10.1109/JMW.2024.3421535","DOIUrl":"https://doi.org/10.1109/JMW.2024.3421535","url":null,"abstract":"This paper presents an RF-switchless two-bandpass filter (BPF) manifold with continuous multi-octave center frequency (\u0000<italic>fcen\u0000) and bandwidth (BW) tuning capabilities that are demonstrated in a wide range of frequency range 1 (FR1) bands, spanning from L-band to C-band. Specifically, the proposed RF filtering component operates in three distinct modes of operation, namely: i) single-band, ii) dual-band, and iii) all-reject—achieved by intrinsically switching ON/OFF its two BPF branches. It is based on two tune-all BPFs that are combined with two high-pass/low-pass RF diplexer-based filtering junctions. A technique to minimize insertion loss (IL) using varactors and high-\u0000<italic>Q\u0000 static DC block capacitors is demonstrated. The experimental prototype exhibits: i) a single-band mode of operation with \u0000<italic>fcen\u0000 tuning between 1.89–7.28 GHz, BW tuning ratio of 3–4.4:1 and minimum in-band insertion loss (IL): 2.3–5.7 dB), ii) a dual-band mode of operation with two independently tuned bands, and iii) an all-reject mode of operation with isolation < 15 dB between DC and 18 GHz.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"4 4","pages":"759-766"},"PeriodicalIF":6.9,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10602512","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142408753","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

Introduction to the Summer 2024 Issue 2024 年夏季刊简介

IF 6.9

IEEE journal of microwaves Pub Date : 2024-07-15 DOI: 10.1109/JMW.2024.3419772

Peter H. Siegel

引用次数: 0

Establishing On-Wafer Calibration Standards for the 16-Term Error Model: Application to Silicon High-Frequency Transistor Characterization 为 16 项误差模型建立晶圆校准标准：应用于硅高频晶体管特性分析

IF 6.9

IEEE journal of microwaves Pub Date : 2024-07-15 DOI: 10.1109/JMW.2024.3413865

Sebastien Fregonese;Thomas Zimmer

引用次数: 0