IEEE journal of microwaves最新文献_第3页

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}

引用次数: 0

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

95 GHz Indoor Propagation Measurement and 3GPP-Compatible Channel Model for Sub-THz Indoor Short-Range Communications 亚太赫兹室内短距离通信的95 GHz室内传播测量与3gpp兼容信道模型

IF 6.9

IEEE journal of microwaves Pub Date : 2025-03-08 DOI: 10.1109/JMW.2025.3562285

Yusuke Koda;Norichika Ohmi;Hiroaki Endo;Hiroshi Harada

{"title":"95 GHz Indoor Propagation Measurement and 3GPP-Compatible Channel Model for Sub-THz Indoor Short-Range Communications","authors":"Yusuke Koda;Norichika Ohmi;Hiroaki Endo;Hiroshi Harada","doi":"10.1109/JMW.2025.3562285","DOIUrl":"https://doi.org/10.1109/JMW.2025.3562285","url":null,"abstract":"This study presents a 95 GHz indoor channel measurement campaign for an ultra-wideband short-range communication scenario and proposes an intra-cluster stochastic channel generation procedure compatible with the well-known 3GPP stochastic channel model (SCM) for this use case with a larger bandwidth than 2 GHz. Recently, a 3GPP-compatible SCM for device-to-device (D2D) short-range communication in a bandwidth of 2 GHz has been developed at the 60 GHz band to provide a unified channel generation framework aligned with 3GPP-led cellular-type communications with lower bandwidth (e.g., 400 MHz typical for millimeter wave communications). This study aims to extend this framework for an upper band and larger bandwidth by defining the experimentally found large-scale parameters at 90–100 GHz while adjusting the intra-cluster subpath generation mechanism. To this end, we first conduct a wideband multipath channel measurement at 95 GHz center frequency with 4 GHz bandwidth in a simple conference room scenario as an exemplary environment of wideband short-range communication. Statistical characteristics of a complete set of large-scale parameters (LSPs) for running the 3GPP-compatible SCM are derived where LSP trends specific to D2D short-range communication scenarios in a small conference room and extendable from the recent 60 GHz measurements are observed. Moreover, we propose an unequal intra-cluster subpath generation procedure, serving as an additional adjustment for accurate channel generation for bandwidths greater than 2 GHz. Numerical evaluation reveals the feasibility of generating channel impulse responses capturing more accurate characteristics at both the large-scale level and intra-cluster level. Specifically, owing to the proposed adjustment, the statistical characteristics in the intra-cluster subpath well fit the results from our presented measurements.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"5 3","pages":"583-599"},"PeriodicalIF":6.9,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10994203","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143925221","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

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 : 2025-03-08 DOI: 10.1109/JMW.2025.3561531

引用次数: 0

IEEE Microwave Theory and Technology Society Publication Information IEEE微波理论与技术学会出版物信息

IF 6.9

IEEE journal of microwaves Pub Date : 2025-03-08 DOI: 10.1109/JMW.2025.3561527

引用次数: 0

Introduction to the May 2025 Issue 2025年5月版简介

IF 6.9

IEEE journal of microwaves Pub Date : 2025-03-08 DOI: 10.1109/JMW.2025.3563079

Peter H. Siegel

引用次数: 0