IEEE journal of microwaves最新文献_第5页

Novel Fabrication-Tolerant Resonator Design for mm-Wave Chipless RFID and Its Analytical Model 毫米波无芯片RFID容加工谐振腔设计及其分析模型

IF 6.9

IEEE journal of microwaves Pub Date : 2025-03-18 DOI: 10.1109/JMW.2025.3540157

Yuting Zhao;Tao Jiang;Simone Genovesi;Giuliano Manara;Filippo Costa

{"title":"Novel Fabrication-Tolerant Resonator Design for mm-Wave Chipless RFID and Its Analytical Model","authors":"Yuting Zhao;Tao Jiang;Simone Genovesi;Giuliano Manara;Filippo Costa","doi":"10.1109/JMW.2025.3540157","DOIUrl":"https://doi.org/10.1109/JMW.2025.3540157","url":null,"abstract":"This paper presents a class of novel fabrication-tolerant resonator design for high-capacity chipless RFID tags. The proposed resonator is based on a high-quality-factor grounded dipole with a single etched slot of variable length. By controlling the slot length, the resonant frequency can be adjusted while exhibiting much lower sensitivity to design variables compared to conventional dipole resonators. This makes the design resilient to fabrication tolerances, a critical requirement for mm-wave frequency bands. This feature enables a two-step fabrication process: first, producing high-precision master tags (e.g., via roll-to-roll fabrication), and second, customizing them by etching slots using a flexible method like laser etching. The presence of a ground plane provides isolation from the tagged object, enabling application to diverse materials and geometries. An analytical model is derived to establish the relationship between slot length changes and resonant frequency shifts, enabling efficient design optimization. Sensitivity analysis shows the proposed resonator has a single parameter sensitivity of 0.008 (feasibility), and overall sensitivity of 0.04 (stability) under <inline-formula><tex-math>$pm 50;mutext{m}$</tex-math></inline-formula> fabrication tolerance, over two orders of magnitude and half lower than the sensitivity of 1 for conventional dipoles. The resonator design is validated through simulations and experiments, demonstrating its potential for high-capacity, fabrication-tolerant chipless RFID tags.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"5 2","pages":"305-311"},"PeriodicalIF":6.9,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10931042","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143654923","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}

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IEEE Journal of Microwaves Table of Contents IEEE微波杂志目录

IF 6.9

IEEE journal of microwaves Pub Date : 2025-03-18 DOI: 10.1109/JMW.2025.3541906

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Microwave Imaging for Breast Cancer Detection - A Comparison Between VNA and FMCW Radar 微波成像在乳腺癌检测中的应用——VNA与FMCW雷达的比较

IF 6.9

IEEE journal of microwaves Pub Date : 2025-03-18 DOI: 10.1109/JMW.2025.3541147

Martin Maier;Sebastian Paul;Milan Rother;Simona Di Meo;Marco Pasian;Joerg Schoebel;Vadim Issakov

引用次数: 0

Monolithically-Integrated Bandpass Filters Using Capacitively-Loaded Intertwined Helical Resonators 使用电容负载缠绕螺旋谐振器的单片集成带通滤波器

IF 6.9

IEEE journal of microwaves Pub Date : 2025-03-18 DOI: 10.1109/JMW.2025.3534018

Jose L. Medrán del Río;Armando Fernandez-Prieto;Jesus Martel;Christian Elmiger;Dimitra Psychogiou

{"title":"Monolithically-Integrated Bandpass Filters Using Capacitively-Loaded Intertwined Helical Resonators","authors":"Jose L. Medrán del Río;Armando Fernandez-Prieto;Jesus Martel;Christian Elmiger;Dimitra Psychogiou","doi":"10.1109/JMW.2025.3534018","DOIUrl":"https://doi.org/10.1109/JMW.2025.3534018","url":null,"abstract":"This paper presents a novel compact 3D bandpass filter (BPF) concept based on new classes of intertwined helical resonators. The concept is demonstrated by three unique RF filter architectures: a second-order single-band BPF, a second-order dual-band BPF, and a differential single-band BPF. The filter designs are based on coupled-resonator theory, and their implementation is performed using stereolithography apparatus (SLA) 3D printing to create monolithic, screwless structures with ultra-low weight (20–65 gr) and minimal loss. The proposed intertwined helical resonator-based BPF concept, which enables designs with compact size and large fractional bandwidth (FBW) with transmission zeroes (TZ), has been experimentally validated. Manufactured prototypes have demonstrated the following RF performance: single-band BPF: center frequency of 1.08 GHz, 3 dB FBW of 15.5%, and insertion loss (IL) of 0.08 dB; dual-band BPF: passbands centered at 0.84 GHz and 1.53 GHz, with a 3 dB FBW of 19% and 6.5% and IL of 0.2 dB and 0.55 dB, respectively; differential single-band BPF: center frequency of 0.78 GHz, 3 dB FBW of 4%, and IL of 0.87 dB. To the best of the author's knowledge, this work is the first approach to 3D-printed differential BPFs.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"5 2","pages":"476-486"},"PeriodicalIF":6.9,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10931065","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143654898","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}

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Introduction to the March 2025 Issue 2025年3月刊简介

IF 6.9

IEEE journal of microwaves Pub Date : 2025-03-18 DOI: 10.1109/JMW.2025.3543478

Peter H. Siegel

引用次数: 0

Depth Camera Motion Tracking for Motion Compensation and ISAR Imaging in Walk-Through Security Scanners 深度相机运动跟踪的运动补偿和ISAR成像在走过安全扫描仪

IF 6.9

IEEE journal of microwaves Pub Date : 2025-03-18 DOI: 10.1109/JMW.2025.3543716

Konstantin Root;Ingrid Ullmann;Martin Vossiek

{"title":"Depth Camera Motion Tracking for Motion Compensation and ISAR Imaging in Walk-Through Security Scanners","authors":"Konstantin Root;Ingrid Ullmann;Martin Vossiek","doi":"10.1109/JMW.2025.3543716","DOIUrl":"https://doi.org/10.1109/JMW.2025.3543716","url":null,"abstract":"This paper investigates the fusion of radar and depth camera for maintaining high-quality radar images in walk-through security scanners with significantly reduced array geometries. Therefore, after sensor calibration, the reconstruction volume is initially divided into sub-volumes and linked to the closest body part of a walking person being scanned. The depth camera's motion tracking provides the location and orientation of each body joint during the gait, allowing us to determine their trajectory and velocity. This information is then used to compensate for movement in the image reconstruction of each recorded radar frame. Afterwards, the motion compensated images are then superimposed to one ISAR image, considering the complete trajectory of the person. We conducted measurements with a <inline-formula><tex-math>$3.6 ,mathrm{G}mathrm{Hz}$</tex-math></inline-formula>-to-<inline-formula><tex-math>$10.6 ,mathrm{G}mathrm{Hz}$</tex-math></inline-formula> walk-through security scanner and a real person carrying various objects. Motion tracking with a depth camera shows promising results for both imaging approaches. In the motion-compensated images, small details became visible and focused compared to reconstruction results without applied motion compensation. The ISAR approach demonstrated effective alignment of individual frames into one superimposed image, producing a full-body image even with a reduced array dimension. While these results prove the benefit of the fusion of radar and depth camera, further investigations into array design are necessary, as object visibility is strongly affected by the selected array geometry for ISAR imaging. This fact could complicate the reliable detection of potential threat objects with a downsized imaging array.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"5 2","pages":"388-398"},"PeriodicalIF":6.9,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10931064","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143654854","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

Photonic Stepped-Frequency Intensity Modulated Comb Terahertz Radar 光子阶跃频率强度调制梳状太赫兹雷达

IF 6.9

IEEE journal of microwaves Pub Date : 2025-03-18 DOI: 10.1109/JMW.2025.3544017

Vladyslav Cherniak;Kevin Kolpatzeck;Jan C. Balzer

引用次数: 0

IEEE Journal of Microwaves Information for Authors IEEE微波信息作者杂志

IF 6.9

IEEE journal of microwaves Pub Date : 2025-03-18 DOI: 10.1109/JMW.2025.3541904

引用次数: 0

Modified Three-Way Doherty Power Amplifier Design Using Simplified Transistor Model Assisted Optimization for Ultra-Wideband Applications 基于简化晶体管模型的超宽带改进三通Doherty功率放大器设计

IF 6.9

IEEE journal of microwaves Pub Date : 2025-03-17 DOI: 10.1109/JMW.2025.3545033

Ruibin Gao;Yi Zhang;Zhijiang Dai;Weimin Shi;Mingyu Li;Shichang Chen;Jingzhou Pang

{"title":"Modified Three-Way Doherty Power Amplifier Design Using Simplified Transistor Model Assisted Optimization for Ultra-Wideband Applications","authors":"Ruibin Gao;Yi Zhang;Zhijiang Dai;Weimin Shi;Mingyu Li;Shichang Chen;Jingzhou Pang","doi":"10.1109/JMW.2025.3545033","DOIUrl":"https://doi.org/10.1109/JMW.2025.3545033","url":null,"abstract":"This paper presents the design and realization of an ultra-wideband three-way Doherty power amplifier (DPA). A modified load modulation network (LMN) with very simple circuit structure is proposed to enhance the bandwidth of three-way DPAs. An equivalent transmission line (TL) network is employed to construct the proposed LMN, which absorbs the package and parasitic parameters of the active devices. Meanwhile, the complex combining load is also employed to further improve the broadband performance of the proposed three-way DPA. To streamline the design process for complex power amplifiers (PAs), we introduce a tailored, expedited approach that harnesses a simplified transistor behavioral model and corresponding design methodology. This methodology significantly diminishes the complexities associated with multi-way DPA designs, enabling the swift completion of initial design iterations. To validate the proposed circuit architecture and design strategy, a three-way DPA with a bandwidth spanning more than one octave is designed and fabricated using commercial Gallium Nitride (GaN) devices. The fabricated three-way DPA achieves efficiency higher than 46% at 6 dB output power back-off (OBO) throughout the band from 0.7 GHz to 2.3 GHz, with a small signal gain of 11.7–13.9 dB. At saturation, 43.9–46.4 dBm output power can be obtained with peak efficiency of 58.9–78.1% . The modulation signal test has also been completed with a 64 QAM signal which has a PAPR of 6.7 dB and a bandwidth of 10 MHz, ACPR better than −20.8 dBc has been achieved.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"5 3","pages":"711-725"},"PeriodicalIF":6.9,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10930730","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143925334","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}

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Call for Papers—Announcing a New Special Issue: Microwaves in Medicine & Biology 征文-宣布一个新的特刊：微波在医学和生物学

IF 6.9

IEEE journal of microwaves Pub Date : 2025-03-08 DOI: 10.1109/JMW.2025.3568236

引用次数: 0