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Introduction to the March 2025 Issue 2025年3月刊简介
IF 6.9 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-03-18 DOI: 10.1109/JMW.2025.3543478
Peter H. Siegel
As we move forward into our fifth year of production with an official impact factor of 6.9 and full indexing on Web of Science and Scopus, we have greatly expanded our editorial board to handle the increased influx of submitted papers. Over the coming few months, we would like to reduce our article queue and our submission-to-decision time without sacrificing our quality or personal attention to authors and readers. We are hopeful that our now 36 Topic Editors will help us in this endeavor as well as bringing even more technical breadth and quality to our decision processes. Our March issue contains twenty technical articles covering our typically wide swath of microwave technologies and applications with emphasis this month on health sciences, low power energy transfer, radar, and filter circuits. We also bring the reader's attention to our recently released special issue Microwaves in Climate Change and announce our 2023 Best Paper Award and our 2024 Outstanding Reviewers.
随着我们进入第五个年头,我们的官方影响因子为6.9,并在Web of Science和Scopus上进行全面索引,我们大大扩展了我们的编辑委员会,以处理越来越多的提交论文。在接下来的几个月里,我们希望在不牺牲我们的质量或对作者和读者的个人关注的情况下,减少我们的文章队列和我们的提交决策时间。我们希望我们现在的36个主题编辑能够帮助我们完成这项工作,并为我们的决策过程带来更多的技术广度和质量。我们3月份的期刊包含20篇技术文章,涵盖了我们典型的微波技术和应用领域,本月的重点是健康科学,低功耗能量传输,雷达和滤波器电路。我们还提请读者注意我们最近发布的特刊《气候变化中的微波》,并宣布我们的2023年最佳论文奖和2024年杰出评论家。
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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 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-03-18 DOI: 10.1109/JMW.2025.3543716
Konstantin Root;Ingrid Ullmann;Martin Vossiek
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 $3.6 ,mathrm{G}mathrm{Hz}$-to-$10.6 ,mathrm{G}mathrm{Hz}$ 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.
本文研究了雷达和深度相机的融合,以保持高质量的雷达图像,并大大减少了阵列几何形状。因此,在传感器校准后,重建体最初被划分为子体,并与被扫描行走的人最近的身体部位相关联。深度摄像机的运动跟踪提供了步态中每个身体关节的位置和方向,使我们能够确定它们的轨迹和速度。该信息随后用于补偿每个记录雷达帧图像重建中的运动。然后,考虑到人的完整轨迹,将运动补偿图像叠加到一个ISAR图像中。我们使用$3.6 , mathm {G} mathm {Hz}$到$10.6 , mathm {G} mathm {Hz}$的穿越安全扫描仪和一个携带各种物品的真人进行测量。运动跟踪与深度相机显示有希望的结果,这两种成像方法。在运动补偿的图像中,与未应用运动补偿的重建结果相比,小细节变得可见和聚焦。ISAR方法证明了将单个帧有效地对齐到一个叠加图像中,即使降低了阵列尺寸也能产生全身图像。虽然这些结果证明了雷达和深度相机融合的好处,但对阵列设计的进一步研究是必要的,因为ISAR成像所选择的阵列几何形状对目标可见性有很大影响。这一事实可能会使缩小成像阵列对潜在威胁物体的可靠探测复杂化。
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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 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-03-18 DOI: 10.1109/JMW.2025.3544017
Vladyslav Cherniak;Kevin Kolpatzeck;Jan C. Balzer
This work presents an ultra-high repetition rate (UHRR) terahertz time-domain spectroscopy (THz-TDS) system with a unique capability – it functions as a close-range pulsed radar with micrometer precision and an unambiguous range (UR) of about 3 mm. To extend the UR, a stepped-frequency intensity modulated comb (s-FIMC) is introduced. This results in a hybrid radar system, where s-FIMC is employed to determine the distance to a target, while the THz-TDS signal is utilized to monitor changes in the target's position with micrometer precision. With a 10 GHz modulation bandwidth, a resolution of 15 mm, and a range accuracy of $pm$1.47 mm are achieved in s-FIMC mode. In the TDS mode, a range accuracy of $pm$15 $rm {mu }$m is demonstrated.
这项工作提出了一个具有独特能力的超高重复率(UHRR)太赫兹时域光谱(THz-TDS)系统-它作为一个近距离脉冲雷达,具有微米精度和约3毫米的明确范围(UR)。为了扩展UR,引入了阶跃频率强度调制梳(s-FIMC)。这就形成了一种混合雷达系统,其中s-FIMC被用来确定到目标的距离,而太赫兹- tds信号被用来以微米级精度监测目标位置的变化。在s-FIMC模式下,可实现10ghz调制带宽、15mm分辨率和1.47 mm测距精度。在TDS模式下,演示了$pm$15 $rm {mu}$m的距离精度。
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引用次数: 0
IEEE Journal of Microwaves Information for Authors IEEE微波信息作者杂志
IF 6.9 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-03-18 DOI: 10.1109/JMW.2025.3541904
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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 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC 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
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.
介绍了一种超宽带三路多尔蒂功率放大器(DPA)的设计与实现。为了提高三路dpa的带宽,提出了一种电路结构非常简单的改进负载调制网络。采用等效传输线(TL)网络构建LMN,吸收有源器件的封装参数和寄生参数。同时,利用复杂的组合负载进一步提高了三向DPA的宽带性能。为了简化复杂功率放大器(PAs)的设计过程,我们引入了一种定制的、快速的方法,该方法利用简化的晶体管行为模型和相应的设计方法。该方法显著降低了与多路DPA设计相关的复杂性,使初始设计迭代能够快速完成。为了验证所提出的电路架构和设计策略,使用商用氮化镓(GaN)器件设计和制造了一个带宽跨越一个倍频程的三向DPA。在0.7 GHz至2.3 GHz的频段内,该三路DPA在6 dB输出功率回退(OBO)时的效率高于46%,信号增益仅为11.7-13.9 dB。饱和时输出功率为43.9 ~ 46.4 dBm,峰值效率为58.9 ~ 78.1%。用PAPR为6.7 dB,带宽为10 MHz的64 QAM信号完成了调制信号测试,ACPR优于- 20.8 dBc。
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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 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-03-08 DOI: 10.1109/JMW.2025.3568236
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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 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-03-08 DOI: 10.1109/JMW.2025.3562285
Yusuke Koda;Norichika Ohmi;Hiroaki Endo;Hiroshi Harada
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.
本研究针对超宽带短距离通信场景提出了一种95 GHz室内信道测量活动,并提出了一种集群内随机信道生成过程,该过程与著名的3GPP随机信道模型(SCM)兼容,该用例的带宽大于2 GHz。最近,在60 GHz频段上开发了一种用于2 GHz带宽的设备对设备(D2D)短距离通信的3gpp兼容SCM,以提供与3gpp主导的低带宽蜂窝型通信(例如,400mhz典型用于毫米波通信)一致的统一信道生成框架。本研究旨在通过定义实验发现的90-100 GHz大尺度参数,同时调整集群内子路径生成机制,将该框架扩展到更高的频带和更大的带宽。为此,我们首先在一个简单的会议室场景中以95 GHz中心频率和4 GHz带宽进行宽带多径信道测量,作为宽带短距离通信的示例环境。导出了运行3gpp兼容SCM的一整套大规模参数(LSP)的统计特征,其中LSP趋势特定于小型会议室中的D2D短距离通信场景,并可从最近的60 GHz测量中扩展。此外,我们提出了一个不相等的集群内子路径生成过程,作为带宽大于2 GHz的精确信道生成的额外调整。数值计算表明,在大尺度和簇内水平上产生更精确的信道脉冲响应是可行的。具体来说,由于提出的调整,簇内子路径的统计特征与我们提出的测量结果非常吻合。
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引用次数: 0
IEEE Journal of Microwaves Information for Authors IEEE微波信息作者杂志
IF 6.9 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-03-08 DOI: 10.1109/JMW.2025.3561531
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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 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-03-08 DOI: 10.1109/JMW.2025.3561527
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引用次数: 0
Introduction to the May 2025 Issue 2025年5月版简介
IF 6.9 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-03-08 DOI: 10.1109/JMW.2025.3563079
Peter H. Siegel
Our May issue contains eighteen technical articles spanning magnetic resonance imaging (MRI) induced heating, implantable medical devices, human skin modelling in the microwave region, energy harvesting for electric vehicles, fully integrated THz radar circuitry implemented in silicon germanium, millimeter-wave indoor communications modelling, synthetic aperture radar imaging techniques, photonic-based multiple-input–multiple-output (MIMO) radar, a MIMO emulator, rectifiers for wireless power transfer, microwave switches, amplifiers, power combiners, and optimization techniques. We close with a general article on analyzing arbitrarily shaped waveguide discontinuities. We would also like to bring your attention to a new special issue we are targeting for release in early 2026 on Microwaves in Medicine and Biology. You will find the call for papers at the end of our Table of Contents for this May issue.
我们的5月刊包含18篇技术文章,涵盖磁共振成像(MRI)诱导加热,植入式医疗设备,微波区域的人体皮肤建模,电动汽车的能量收集,硅锗实现的完全集成太赫兹雷达电路,毫米波室内通信建模,合成孔径雷达成像技术,基于光子的多输入多输出(MIMO)雷达,MIMO模拟器,用于无线电力传输的整流器,微波开关,放大器,功率合成器和优化技术。我们以一篇分析任意形状波导不连续的一般性文章作为结束。我们还想提请您注意我们将于2026年初发布的关于医学和生物学中的微波的新特刊。你可以在我们五月号目录的最后找到征文启事。
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引用次数: 0
期刊
IEEE journal of microwaves
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