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2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)最新文献

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Terahertz Microscopy in Silicon Technology 硅技术中的太赫兹显微镜
2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2020-12-14 DOI: 10.1109/IMBIoC47321.2020.9385018
R. Al Hadi, Y. Zhao, J. Hwang, M. Chang
{"title":"Terahertz Microscopy in Silicon Technology","authors":"R. Al Hadi, Y. Zhao, J. Hwang, M. Chang","doi":"10.1109/IMBIoC47321.2020.9385018","DOIUrl":"https://doi.org/10.1109/IMBIoC47321.2020.9385018","url":null,"abstract":"This paper presents a terahertz microscope offering sub-wavelength resolution for imaging applications. The chip consists of a coupled terahertz Colpitts oscillators operating at 550GHz. It is implemented in a standard CMOS 65nm technology. A near-field sensing region between the oscillators is sensitive to external perturbation and results in a shift of the operating frequency. The far-field radiating frequency is extracted by an on-chip antenna and measured with an external harmonic mixer. The spatial resolution is verified with a micro-positioning stage.","PeriodicalId":297049,"journal":{"name":"2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122379315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Noncontact Exercise Monitoring in Multi-Person Scenario With Frequency-Modulated Continuous-Wave Radar 基于调频连续波雷达的多人非接触运动监测
2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2020-12-14 DOI: 10.1109/IMBIoC47321.2020.9385031
Davi V. Q. Rodrigues, Changzhi Li
{"title":"Noncontact Exercise Monitoring in Multi-Person Scenario With Frequency-Modulated Continuous-Wave Radar","authors":"Davi V. Q. Rodrigues, Changzhi Li","doi":"10.1109/IMBIoC47321.2020.9385031","DOIUrl":"https://doi.org/10.1109/IMBIoC47321.2020.9385031","url":null,"abstract":"Monitoring exercise activities is crucial for athletes to reach specific fitness goals. Portable radars are an emerging technology for noncontact exercise monitoring. However, the existing works only relies on the Doppler effect caused by one motion in the sensor's field of view, which is not practical in scenarios with multiple moving targets. In this paper, the feasibility of using FMCW radars to monitor exercises when multiple moving targets are illuminated by the same sensor is investigated. By using the range capability of FMCW radars, interference rejection is achieved. Experimental results demonstrate the effectiveness of the noncontact exercise monitoring based on FMCW radars in the presence of multiple interferences.","PeriodicalId":297049,"journal":{"name":"2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132299884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Feasibility Study on the Reading of Energy-Harvested Implanted NFC Tags Using Mobile Phones and Commercial NFC IC 利用手机和商用NFC IC读取能量采集植入NFC标签的可行性研究
2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2020-12-14 DOI: 10.1109/IMBIoC47321.2020.9385033
A. Lázaro, M. Boada, R. Villarino, D. Girbau
{"title":"Feasibility Study on the Reading of Energy-Harvested Implanted NFC Tags Using Mobile Phones and Commercial NFC IC","authors":"A. Lázaro, M. Boada, R. Villarino, D. Girbau","doi":"10.1109/IMBIoC47321.2020.9385033","DOIUrl":"https://doi.org/10.1109/IMBIoC47321.2020.9385033","url":null,"abstract":"This paper studies the feasibility of reading implanted sensors based on battery-less Near-Field Communication (NFC) integrated circuits using an NFC-equipped smartphone as a reader. Different commercial NFC integrated circuits (IC) with energy harvesting capability are compared. A conventional system based on the resonant coupling between 2 coils is compared with a system proposed here consisting in the resonant coupling between 3 coils. In the latter, a relay antenna is implemented on a patch and attached on the skin. A measurement setup to characterize the read range of the NFC implanted sensors is built up. Experimental results show that the 3 coils system presents a much better performance. The prototype of the implanted tag consisted of an $boldsymbol{15 times 15 mathbf{mm}}$ antenna and a commercial NFC IC with energy harvesting that is able to read up to 16 mm inside the body using commercial smartphones.","PeriodicalId":297049,"journal":{"name":"2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116624329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Wearable Wireless Propagation and Radiation Control With Metamaterial Textiles 超材料纺织品可穿戴无线传播与辐射控制
2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2020-12-14 DOI: 10.1109/IMBIoC47321.2020.9385052
Xi Tian, Qihang Zeng, J. S. Ho
{"title":"Wearable Wireless Propagation and Radiation Control With Metamaterial Textiles","authors":"Xi Tian, Qihang Zeng, J. S. Ho","doi":"10.1109/IMBIoC47321.2020.9385052","DOIUrl":"https://doi.org/10.1109/IMBIoC47321.2020.9385052","url":null,"abstract":"Radio-frequency technologies are crucial for wirelessly connected wearable devices, but their performance is hindered by obstruction of wireless signal propagation by the human body. In this talk, we describe clothing integrated with spoof plasmonic metamaterial structures capable of overcoming this obstruction by inducing wireless signals emitted by nearby antennas to propagate around the body as surface waves and radiate into the surrounding space in all directions. We outline the principles and design of these metamaterial structures, which are fabricated entirely from conductive textiles, including spoof surface plasmon waveguides, radiation elements, and impedance matching sections. As an illustrative example, we demonstrate a design operating in the 2.4-2.5 GHz ISM band capable of redirecting radiation from a wearable antenna around the body into otherwise obstructed directions.","PeriodicalId":297049,"journal":{"name":"2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"61 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128632007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sub-Terahertz Antenna Array Packaged in Bio-Compatible Polymer for Fully-Passive Subdermal Sensing 生物相容性聚合物封装的亚太赫兹天线阵列用于全被动皮下传感
2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2020-12-14 DOI: 10.1109/IMBIoC47321.2020.9385013
Alfredo Gonzalez, J. Volakis, E. Alwan
{"title":"Sub-Terahertz Antenna Array Packaged in Bio-Compatible Polymer for Fully-Passive Subdermal Sensing","authors":"Alfredo Gonzalez, J. Volakis, E. Alwan","doi":"10.1109/IMBIoC47321.2020.9385013","DOIUrl":"https://doi.org/10.1109/IMBIoC47321.2020.9385013","url":null,"abstract":"Sub-terahertz (sub-THz) systems are ideal for implants that require continuous high-resolution sensing and wireless communications for diagnostics. There is also a need for these systems to be small, cost-effective, and of bio-compatible material. Here, we present an antenna array that is capable of sub-THz operation (0.063-0.212THz) and is small in size with a $mathbf{5times 5}$ configuration $mathbf{(2.85{mm}times 2.85{mm})}$, or a $mathbf{3times 3}$ array $mathbf{(1.7mmtimes 1.7mm)}$. Furthermore, the antenna uses a low-cost polymer as substrate and superstrate. This ensures efficient high frequency operation and bio-compatible packaging while maintaining a profile of 0.38mm. The array has dual-linear polarization and achieves a 3.4:1 contiguous impedance bandwidth at broadside with a voltage standing wave ratio (VSWR) $mathbf{< 2}$ across the entire band under a 0.07mm epidermis layer. Similarly, the antenna achieves a 3.2:1 bandwidth with VSWR $mathbf{< 2}$ for a 0.015mm layer of stratum corneum. Full-wave simulation of the array demonstrates $mathbf{>70 %}$ efficiency across the entire band for both conditions. A 60dB polarization purity is also achieved.","PeriodicalId":297049,"journal":{"name":"2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128504722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A metamaterial-based cable mantle for shield current suppression in MRI systems 一种用于MRI系统屏蔽电流抑制的基于超材料的电缆护套
2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2020-12-14 DOI: 10.1109/IMBIoC47321.2020.9385008
Diego Betancourt, Endri Stoja, R. Wilke, Dennis Philipp, J. Jenne, Reinhold Umathum, S. Konstandin, T. Bertuch, M. Günther
{"title":"A metamaterial-based cable mantle for shield current suppression in MRI systems","authors":"Diego Betancourt, Endri Stoja, R. Wilke, Dennis Philipp, J. Jenne, Reinhold Umathum, S. Konstandin, T. Bertuch, M. Günther","doi":"10.1109/IMBIoC47321.2020.9385008","DOIUrl":"https://doi.org/10.1109/IMBIoC47321.2020.9385008","url":null,"abstract":"In this work, the design, fabrication, and experimental verification of a novel cable mantle for shield current suppression in MRI applications are introduced. The design model is based on metamaterial technology. A proof-of-concept was manufactured and experimentally verified. Novel features for a shield current suppression device such as multiple platform compatibility and broadband behavior are also demonstrated.","PeriodicalId":297049,"journal":{"name":"2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127073043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Capacitive Microwave Sensor With Guard Electrodes for Biological Cell Characterization 一种具有保护电极的电容式微波传感器用于生物细胞表征
2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2020-12-14 DOI: 10.1109/IMBIoC47321.2020.9385030
A. Savić, A. Jacob
{"title":"A Capacitive Microwave Sensor With Guard Electrodes for Biological Cell Characterization","authors":"A. Savić, A. Jacob","doi":"10.1109/IMBIoC47321.2020.9385030","DOIUrl":"https://doi.org/10.1109/IMBIoC47321.2020.9385030","url":null,"abstract":"Parallel plate capacitor configurations are common for permittivity measurements. Depending on the exact geometry of the plates, the contribution of the usually unwanted fringing fields can be significant. At low frequencies, this effect can be simply avoided by means of properly driven guard electrodes. This way, only the approximately homogeneous field beneath the main electrode is measured. This paper proposes a microwave implementation of such a sensor and a simple method based on scattering parameter measurements for permittivity extraction. The intended application is the size independent assessment of biological cell properties in a microfluidic setup. The paper presents simulation results for a parallel plate cell sensor without and with a guard electrode. Experimental verification is provided with a scaled version realized in printed circuit board technology. The measurements are performed on a dielectric slab at different positions.","PeriodicalId":297049,"journal":{"name":"2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"222 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128155732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of Reconstruction Algorithms for Brain Stroke Microwave Imaging 脑卒中微波成像重建算法的比较
2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2020-12-14 DOI: 10.1109/IMBIoC47321.2020.9385032
Valeria Mariano, J. T. Vásquez, R. Scapaticci, L. Crocco, P. Kosmas, F. Vipiana
{"title":"Comparison of Reconstruction Algorithms for Brain Stroke Microwave Imaging","authors":"Valeria Mariano, J. T. Vásquez, R. Scapaticci, L. Crocco, P. Kosmas, F. Vipiana","doi":"10.1109/IMBIoC47321.2020.9385032","DOIUrl":"https://doi.org/10.1109/IMBIoC47321.2020.9385032","url":null,"abstract":"The aim of this paper is to describe and compare the performances of three image reconstruction algorithms that can be used for brain stroke microwave imaging. The algorithms belong to the class of non-linear iterative algorithms and are capable of providing a quantitative map of the imaged scenario. The first algorithm is the Contrast Source Inversion (CSI) method, which uses the Finite Element Method (FEM) to discretize the domain of interest. The second one is the Subspace-Based Optimization Method (SOM) that has some properties in common with the CSI method, and it also uses FEM to discretize the domain. The last one is the Distorted Born Iterative Method with the inverse solver Two-step Iterative Shrinkage/Thresholding (DBIM-TwIST), which exploits the forward Finite Difference Time Domain (FDTD) solver. The reconstruction examples are created with 3-D synthetic data modelling realistic brain tissues with the presence of a blood region, representing the stroke area in the brain, whereas the inversion step is carried out using a 2-D model.","PeriodicalId":297049,"journal":{"name":"2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131977300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Scrutinizing Effects of 75 GHz MMW Irradiation on Biological Functions of Yeast 75 GHz毫米波辐射对酵母生物学功能影响的研究
2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2020-12-14 DOI: 10.1109/IMBIoC47321.2020.9384906
S. Rajput, Ayan Barbora, K. Komoshvili, J. Levitan, A. Yahalom, Stella Liberman-Aronov
{"title":"Scrutinizing Effects of 75 GHz MMW Irradiation on Biological Functions of Yeast","authors":"S. Rajput, Ayan Barbora, K. Komoshvili, J. Levitan, A. Yahalom, Stella Liberman-Aronov","doi":"10.1109/IMBIoC47321.2020.9384906","DOIUrl":"https://doi.org/10.1109/IMBIoC47321.2020.9384906","url":null,"abstract":"In recent days, millimeter waves are widely used for biomedical applications. The mechanisms of biological effects triggered by millimeter-wave exposure are not fully understood and have been the subject of debate. This article presents preliminary studies on a 75 GHz millimeter wave irradiation effect on Saccharomyces cerevisiae yeast cells. In the first step, the exposure setup is designed, and radiated power from the horn antenna is optimized. The yeast cells were grown in a standard synthetic complete liquid medium and dappled onto the agar plates for irradiation. After that, grown cells were irradiated with a frequency of 75 GHz for 6 hours. The growth/division rate of irradiated and control cells was determined using the standard method. A comparative analysis of changes in the growth rate and cell viability of the control versus irradiated yeast cells was performed. Preliminary studies showed that the low power millimeter wave irradiation does not affect the growth rate and cell viability of yeast cells. These results do not rule out the possibilities of local subcellular effects on prolonged exposure.","PeriodicalId":297049,"journal":{"name":"2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130796450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Antenna Based RF Techniques for Intrabody Communication 基于天线的射频体内通信技术
2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2020-12-14 DOI: 10.1109/IMBIoC47321.2020.9385035
S. Basu, D. Mitra, Bappaditya Mandal, R. Augustine
{"title":"Antenna Based RF Techniques for Intrabody Communication","authors":"S. Basu, D. Mitra, Bappaditya Mandal, R. Augustine","doi":"10.1109/IMBIoC47321.2020.9385035","DOIUrl":"https://doi.org/10.1109/IMBIoC47321.2020.9385035","url":null,"abstract":"In this paper, an approach for Intrabody communication(IBC) that uses fat as the communication medium is presented in the ISM band. This study focuses on microwave communication through different biological tissue layers and demonstrates the effect of the thickness of the fat layer on transmission coefficients. Also, the Specific Absorption Rate(SAR) analysis of the antenna has been studied. To validate the simulation results, experimental verification is performed on porcine tissue.","PeriodicalId":297049,"journal":{"name":"2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117225564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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