IEEE journal of microwaves最新文献

2024 Index IEEE Journal of Microwaves Vol. 4 微波学报，第4卷

IF 6.9

IEEE journal of microwaves Pub Date : 2025-01-14 DOI: 10.1109/JMW.2025.3527727

引用次数: 0

TX to RX Compact Leakage Cancellation Impedance Tuner for 60 GHz Monostatic Doppler Radar 用于60ghz单站多普勒雷达的TX to RX紧凑型漏损抵消阻抗调谐器

IF 6.9

IEEE journal of microwaves Pub Date : 2025-01-14 DOI: 10.1109/JMW.2024.3516476

Ahmad Mushtaq;Thomas Mausolf;Wolfgang Miesch;Nasir Uddin;Wolfgang Winkler;Dietmar Kissinger

{"title":"TX to RX Compact Leakage Cancellation Impedance Tuner for 60 GHz Monostatic Doppler Radar","authors":"Ahmad Mushtaq;Thomas Mausolf;Wolfgang Miesch;Nasir Uddin;Wolfgang Winkler;Dietmar Kissinger","doi":"10.1109/JMW.2024.3516476","DOIUrl":"https://doi.org/10.1109/JMW.2024.3516476","url":null,"abstract":"Monostatic radar shares a single antenna between the transmitter (TX) and receiver (RX) and offers an advantage of the reduced sensor size. However, due to the limited isolation of the coupler, the TX signal leaking into the RX significantly degrades the performance of the monostatic doppler radar. This paper presents the design of an ultra-compact impedance tuner (IT) which is connected to the lumped Rat-Race coupler to minimize the TX to RX leakage signal. The IT offers 5-bit phase control and 8-bit magnitude control via the Serial Peripheral Interface (SPI); moreover, it uses SiGe transistors in reverse saturation to enhance the impedance tuning performance. The size of the IT is only 0.04 mm<sup>2</sup> and its power consumption is 4 mW at 3.3V power supply. A two-channel 60 GHz monostatic doppler phased array radar chip has been designed and fabricated in 130 nm SiGe BiCMOS technology for vital signs monitoring application. The measured TX to RX isolation due to the Rat-Race coupler is 22 dB; moreover, IT provides the additional isolation of 27 dB, giving total TX to RX isolation of 49 dB at 60 GHz. The design, simulation and measurements of the IT and its measured leakage cancellation performance is reported in this paper.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"5 1","pages":"84-95"},"PeriodicalIF":6.9,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10841826","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142975729","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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Microwave Pioneers: Mau-Chung Frank Chang, “The Power of Connections” 微波先驱：张茂忠（Mau-Chung Frank Chang）“连接的力量”

IF 6.9

IEEE journal of microwaves Pub Date : 2025-01-14 DOI: 10.1109/JMW.2024.3504332

Peter H. Siegel

{"title":"Microwave Pioneers: Mau-Chung Frank Chang, “The Power of Connections”","authors":"Peter H. Siegel","doi":"10.1109/JMW.2024.3504332","DOIUrl":"https://doi.org/10.1109/JMW.2024.3504332","url":null,"abstract":"We are pleased to pick up this continuing series on individuals within our community who have made significant impacts in the field of microwaves, and to the world, over the course of their careers. This issue's <italic>Microwave Pioneer</i> article is about Mau-Chung Frank Chang, who perhaps more than anyone else, is responsible for the widespread commercial use of the heterojunction bipolar transistor (HBT). Professor Chang is also an example of a researcher who very successfully crossed over from industry to academia and from research to management and back, having spent time in charge of a large team of commercial semiconductor fabrication engineers and as President of a major academic university. Throughout his very varied career, he always emphasized two things: the first he attributes to his mother's teaching - the great power of connecting individuals together to solve problems rather than trying to lead them to a solution, and the second – which is all his own – the fortitude to take on and stick with challenges that seemed daunting to others. We think you will benefit from hearing Frank's story and in getting to know him on a more personal level.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"5 1","pages":"14-22"},"PeriodicalIF":6.9,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10841829","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142975864","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 January 2025 Issue 2025 年 1 月刊简介

IF 6.9

IEEE journal of microwaves Pub Date : 2025-01-14 DOI: 10.1109/JMW.2024.3518209

Peter H. Siegel

{"title":"Introduction to the January 2025 Issue","authors":"Peter H. Siegel","doi":"10.1109/JMW.2024.3518209","DOIUrl":"https://doi.org/10.1109/JMW.2024.3518209","url":null,"abstract":"As we begin our fifth year of publication, we are moving into phase two of our mission to create a stand-alone, high-quality, open access journal that does not directly compete with our core publications within the Microwave Theory and Technology Society (MTT-S). Towards that end, we are making major changes to our internal Editorial Board structure and paper screening methods. We will continue to focus on broad-appeal articles and cross-disciplinary topics that cover the entire range of microwave techniques and applications, and especially those subjects that breach traditional boundaries between engineering and science. We will also continue to bring you special editorial features on a regular basis, including this month's Microwave Pioneer article on UCLA's Mau-Chung Frank Chang. As our paper queue has expanded, we have decided to move to bimonthly, rather than quarterly issue releases. We hope this will reduce our paper queue and decrease the time between article submission and final issue-paginated release. Our January issue content includes 19 regular papers spanning topics that include wearable smart skins, batteryless IoT devices, astronaut hand gesture recognition, THz chiral structures, and metamaterial transmitarrays. We also bring you more than our usual quantity of the more core microwave filter, transmission line, antennas, and waveguide component papers, and a couple of papers on radar instruments and techniques.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"5 1","pages":"3-13"},"PeriodicalIF":6.9,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10841824","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142975867","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 Microwave Theory and Technology Society Information 微波理论与技术学会会刊

IF 6.9

IEEE journal of microwaves Pub Date : 2025-01-14 DOI: 10.1109/JMW.2024.3517000

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 : 2025-01-14 DOI: 10.1109/JMW.2024.3516996

引用次数: 0

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

IF 6.9

IEEE journal of microwaves Pub Date : 2025-01-14 DOI: 10.1109/JMW.2024.3516998

引用次数: 0

EMI-EMC Qualification of the NASA SWOT Mission Using High Fidelity Modeling 利用高保真模型对NASA SWOT任务进行EMI-EMC鉴定

IF 6.9

IEEE journal of microwaves Pub Date : 2025-01-14 DOI: 10.1109/JMW.2024.3522819

Nacer E. Chahat;Edward Gonzales;Emmanuel Decrossas;Amy Stevens;Matthew Keyawa;Pablo S. Narvaez

引用次数: 0

Hybrid Fishnet Metamaterial Based on Liquid Crystal and P-I-N Diodes for Reconfigurable Transmitarrays at $10 ,mathrm{GHz}$ 基于液晶和P-I-N二极管的混合鱼网超材料用于可重构发射阵列，$10 ,mathrm{GHz}$

IF 6.9

IEEE journal of microwaves Pub Date : 2024-12-27 DOI: 10.1109/JMW.2024.3518772

Adrian Diepolder;Lukas Schmidt;Susanne Brandl;Philipp Hinz;Christian Waldschmidt;Christian Damm

{"title":"Hybrid Fishnet Metamaterial Based on Liquid Crystal and P-I-N Diodes for Reconfigurable Transmitarrays at $10 ,mathrm{GHz}$","authors":"Adrian Diepolder;Lukas Schmidt;Susanne Brandl;Philipp Hinz;Christian Waldschmidt;Christian Damm","doi":"10.1109/JMW.2024.3518772","DOIUrl":"https://doi.org/10.1109/JMW.2024.3518772","url":null,"abstract":"This article presents a reconfigurable unit cell for transmitarrays at <inline-formula><tex-math>$10 ,mathrm{GHz}$</tex-math></inline-formula> based on the fishnet metamaterial structure. The proposed design achieves a phase shift of up to <inline-formula><tex-math>$180 mathrm{^{circ }}$</tex-math></inline-formula> between different states and additional tunability in each phase state by switching the electric response using p-i-n diodes and simultaneously tuning the magnetic response by employing liquid crystal. Thus, it offers the potential to overcome the limitations of switchable unit cells with few discrete phase states in terms of achievable antenna gain and side lobe level. With an insertion loss of <inline-formula><tex-math>$1.8$</tex-math></inline-formula>–<inline-formula><tex-math>$2.5 ,mathrm{dB}$</tex-math></inline-formula> in combination with its high phase tunability it exhibits much higher performance than designs using only liquid crystal. A lumped-element model for prediction of the unit cell behavior is proposed, allowing to reduce the number of full-wave simulations during performance analysis. The biasing network for the liquid crystal is designed for integration in an active-matrix configuration, greatly reducing the complexity of the control circuit. To verify the proposed design, a single unit cell prototype is manufactured and measured inside a waveguide simulator, demonstrating good agreement with full-wave simulations.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"5 1","pages":"96-107"},"PeriodicalIF":6.9,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10817118","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142975899","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

Terahertz Circular Dichroism Spectroscopy of 3D Chiral Metallic Microstructures Fabricated Using High Precision CNC Machining 高精度数控加工制备三维手性金属微结构的太赫兹圆二色光谱

IF 6.9

IEEE journal of microwaves Pub Date : 2024-12-25 DOI: 10.1109/JMW.2024.3507188

Atsushi Ouchi;Saroj R. Tripathi

{"title":"Terahertz Circular Dichroism Spectroscopy of 3D Chiral Metallic Microstructures Fabricated Using High Precision CNC Machining","authors":"Atsushi Ouchi;Saroj R. Tripathi","doi":"10.1109/JMW.2024.3507188","DOIUrl":"https://doi.org/10.1109/JMW.2024.3507188","url":null,"abstract":"Recent advancements in terahertz wave applications for sensing, imaging, and high-speed communication have spurred a substantial demand for low-cost, easily accessible optical components capable of manipulating terahertz wave polarization. In this study, terahertz circular dichroism spectroscopic measurements of micrometer-sized metallic chiral helix arrays, fabricated using computer numerical control (CNC) machining, are presented. Experimental results demonstrate a giant circular dichroism of ±0.6 in an axial mode of operation for left- and right-handed arrays within a sub-terahertz frequency range. The helix array converts linearly polarized light into circularly polarized light from 120 GHz to 200 GHz, with a 3 dB axial ratio relative bandwidth approaching 50%. The polarization extinction ratio is in excess of 20 dB. These outstanding features, combined with their low cost, high accessibility, as well as their potential for mass production, pave the way for development of diverse range of optical components such as polarizers, filters, absorbers, and isolators operating in the terahertz frequency region.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"5 1","pages":"108-115"},"PeriodicalIF":6.9,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10815599","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142975999","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