Pub Date : 2020-12-14DOI: 10.1109/IMBIoC47321.2020.9385037
Carlos G. Juan, E. Bronchalo, B. Potelon, Jesús Álvarez-Pastor, J. Sabater-Navarro
A quarter-wave coplanar resonator in reflection configuration is presented as a novel glucose concentration sensor for aqueous solutions. This configuration allows for size reduction compared to half-wave approaches, while maintaining good sensitivities. The sensing magnitude is the unloaded quality factor, that is more sensitive to glucose changes than the resonant frequency in the 1–10 GHz range. The effects in the sensitivity of a coplanar capacitance placed in the open end are studied by simulations and measurements. The effect of the temperature on the sensitivity is also studied by experimental measurements, and discussion for more accurate sensing is offered.
{"title":"Use of Coplanar Quarter-Wave Resonators for Glucose Sensing in Aqueous Solutions","authors":"Carlos G. Juan, E. Bronchalo, B. Potelon, Jesús Álvarez-Pastor, J. Sabater-Navarro","doi":"10.1109/IMBIoC47321.2020.9385037","DOIUrl":"https://doi.org/10.1109/IMBIoC47321.2020.9385037","url":null,"abstract":"A quarter-wave coplanar resonator in reflection configuration is presented as a novel glucose concentration sensor for aqueous solutions. This configuration allows for size reduction compared to half-wave approaches, while maintaining good sensitivities. The sensing magnitude is the unloaded quality factor, that is more sensitive to glucose changes than the resonant frequency in the 1–10 GHz range. The effects in the sensitivity of a coplanar capacitance placed in the open end are studied by simulations and measurements. The effect of the temperature on the sensitivity is also studied by experimental measurements, and discussion for more accurate sensing is offered.","PeriodicalId":297049,"journal":{"name":"2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"69 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":"124954504","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}
Pub Date : 2020-12-14DOI: 10.1109/IMBIoC47321.2020.9385021
M. Rabbani, A. Feresidis
In this paper, non-contact remote vital sign monitoring (RVSM) using 60 GHz-band (57–66 GHz) beam scanning micro-Doppler radar (micro–DR) is presented. Two highly directional antennas with beam scanning ($boldsymbol{20^{mathrm{o}}}$) capabilities have been designed and employed for breathing rate (BR) and heartbeat rate (HR) detection of a person located up to 3m radial distance from the micro–DR at various angular positions. The 60GHz-band RVSM results showed high detection sensitivity, especially for incredibly small HR signal, due to the shorter operating wavelength at 60GHz-band. The proposed beam scanning micro–DR offers flexibility for the subject to change their position within $boldsymbol{20^{mathrm{o}}}$ angular space while remaining under continuous health monitoring.
{"title":"Wireless Health Monitoring with 60 GHz-Band Beam Scanning Micro-Doppler Radar","authors":"M. Rabbani, A. Feresidis","doi":"10.1109/IMBIoC47321.2020.9385021","DOIUrl":"https://doi.org/10.1109/IMBIoC47321.2020.9385021","url":null,"abstract":"In this paper, non-contact remote vital sign monitoring (RVSM) using 60 GHz-band (57–66 GHz) beam scanning micro-Doppler radar (micro–DR) is presented. Two highly directional antennas with beam scanning ($boldsymbol{20^{mathrm{o}}}$) capabilities have been designed and employed for breathing rate (BR) and heartbeat rate (HR) detection of a person located up to 3m radial distance from the micro–DR at various angular positions. The 60GHz-band RVSM results showed high detection sensitivity, especially for incredibly small HR signal, due to the shorter operating wavelength at 60GHz-band. The proposed beam scanning micro–DR offers flexibility for the subject to change their position within $boldsymbol{20^{mathrm{o}}}$ angular space while remaining under continuous health monitoring.","PeriodicalId":297049,"journal":{"name":"2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"8 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":"128906524","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}
Pub Date : 2020-12-14DOI: 10.1109/IMBIoC47321.2020.9385040
S. Kp, K. Arunachalam
In this paper, a compact, quarter-wave coaxial choke design for targeted heat delivery for intracavitary hyperthermia is presented. Antenna performance was evaluated numerically and compared in terms of SAR and power reflection characteristics for varying active antenna lengths and choke position on the outer conductor, and the results were experimentally validated in liquid phantom.
{"title":"Optimal Active Length for Microwave Applicator With a Compact Choke: Surface Current Analysis","authors":"S. Kp, K. Arunachalam","doi":"10.1109/IMBIoC47321.2020.9385040","DOIUrl":"https://doi.org/10.1109/IMBIoC47321.2020.9385040","url":null,"abstract":"In this paper, a compact, quarter-wave coaxial choke design for targeted heat delivery for intracavitary hyperthermia is presented. Antenna performance was evaluated numerically and compared in terms of SAR and power reflection characteristics for varying active antenna lengths and choke position on the outer conductor, and the results were experimentally validated in liquid phantom.","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":"128666780","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}
Pub Date : 2020-12-14DOI: 10.1109/IMBIoC47321.2020.9385036
Alireza Madannejad, S. Sadeghi, Javad Ebrahimizadeh, Fatemeh Ravanbakhsh, M. Pérez, R. Augustine
In this work, a microwave beamforming technique to stimulate deep brain area is presented. The proposed system is evaluated by a near realistic scenario with a 3D brain phantom model. Focusing the electromagnetic power by Time reversal space-frequency DORT is the key factor in this work. Simulation results show the satisfactory performance of the focusing and penetrating microwave signal to stimulating the nerve fiber in the deep brain area.
{"title":"Microwave Beamforming for Non-Invasive Brain Stimulation","authors":"Alireza Madannejad, S. Sadeghi, Javad Ebrahimizadeh, Fatemeh Ravanbakhsh, M. Pérez, R. Augustine","doi":"10.1109/IMBIoC47321.2020.9385036","DOIUrl":"https://doi.org/10.1109/IMBIoC47321.2020.9385036","url":null,"abstract":"In this work, a microwave beamforming technique to stimulate deep brain area is presented. The proposed system is evaluated by a near realistic scenario with a 3D brain phantom model. Focusing the electromagnetic power by Time reversal space-frequency DORT is the key factor in this work. Simulation results show the satisfactory performance of the focusing and penetrating microwave signal to stimulating the nerve fiber in the deep brain area.","PeriodicalId":297049,"journal":{"name":"2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"14 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":"125052503","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}
Pub Date : 2020-12-14DOI: 10.1109/IMBIoC47321.2020.9385051
G. Yaakoubi, C. Dehos, B. Martineau, Jl. Gonzalez
This paper presents results from an experimental broadband sensing method using five waveguides covering the frequency range between 7 to 60 GHz in order to study the impact of blood glucose concentration on measured transmission data. The measurement shows a sensitivity of the transmission parameter to glucose concentration, but also to temperature. Based on sensitivity results, a particular frequency band of interest proposed for the development of a potential non invasive glucometer.
{"title":"Broadband Blood Glucose Monitoring Using Waveguides From RF to Millimeter Wave Frequencies","authors":"G. Yaakoubi, C. Dehos, B. Martineau, Jl. Gonzalez","doi":"10.1109/IMBIoC47321.2020.9385051","DOIUrl":"https://doi.org/10.1109/IMBIoC47321.2020.9385051","url":null,"abstract":"This paper presents results from an experimental broadband sensing method using five waveguides covering the frequency range between 7 to 60 GHz in order to study the impact of blood glucose concentration on measured transmission data. The measurement shows a sensitivity of the transmission parameter to glucose concentration, but also to temperature. Based on sensitivity results, a particular frequency band of interest proposed for the development of a potential non invasive glucometer.","PeriodicalId":297049,"journal":{"name":"2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"18 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":"126943259","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}
Pub Date : 2020-05-25DOI: 10.1109/IMBIoC47321.2020.9384904
Justine Guedey, Y. Deval, H. Lapuyade, F. Rivet
This paper investigates modulation schemes for ultrasonic intra-body networks. State-of-the-art implanted medical devices mostly operate with On-Off Keying (OOK) which is the simplest type of modulation. However, MATLAB simulations depict the higher power efficiency of Binary Phase-Shift Keying (BPSK) over OOK and other binary modulation techniques. Moreover, at equal Bit Error Rate (BER) and emitted signal power, the higher power efficiency eventually results in a gain of achievable depth that is quantified in a gelatin phantom. At last, alternatives to power-hungry Phased-Locked Loop (PLL)-based demodulation circuits are explored as their complex structure generally thwarts the use of BPSK modulation.
{"title":"Binary Phase-Shift Keying for Ultrasonic Intra-Body Area Networks","authors":"Justine Guedey, Y. Deval, H. Lapuyade, F. Rivet","doi":"10.1109/IMBIoC47321.2020.9384904","DOIUrl":"https://doi.org/10.1109/IMBIoC47321.2020.9384904","url":null,"abstract":"This paper investigates modulation schemes for ultrasonic intra-body networks. State-of-the-art implanted medical devices mostly operate with On-Off Keying (OOK) which is the simplest type of modulation. However, MATLAB simulations depict the higher power efficiency of Binary Phase-Shift Keying (BPSK) over OOK and other binary modulation techniques. Moreover, at equal Bit Error Rate (BER) and emitted signal power, the higher power efficiency eventually results in a gain of achievable depth that is quantified in a gelatin phantom. At last, alternatives to power-hungry Phased-Locked Loop (PLL)-based demodulation circuits are explored as their complex structure generally thwarts the use of BPSK modulation.","PeriodicalId":297049,"journal":{"name":"2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127538610","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}
Pub Date : 2020-03-01DOI: 10.1109/IMBIoC47321.2020.9385047
Yiyuan Zhang, O. J. Babarinde, B. Vanrumste, D. Schreurs
In this study, we investigated the feasibility of using a continuous-wave radar sensor for detecting physical activities. The transfer learning method, applying a pre-trained deep neural network (Alexnet), was used to perform the classification task. Doppler signatures of these activities were converted to spectrogram figures as the input of the classifier. The classifier was tested in five-fold cross-validation and leave-one-person-out. The Fl-score of five-fold cross-validation had higher score, which ranged from 71.11 % to 82.05%.
{"title":"Physical Activity Recognition Using Continuous Wave Radar With Deep Neural Network","authors":"Yiyuan Zhang, O. J. Babarinde, B. Vanrumste, D. Schreurs","doi":"10.1109/IMBIoC47321.2020.9385047","DOIUrl":"https://doi.org/10.1109/IMBIoC47321.2020.9385047","url":null,"abstract":"In this study, we investigated the feasibility of using a continuous-wave radar sensor for detecting physical activities. The transfer learning method, applying a pre-trained deep neural network (Alexnet), was used to perform the classification task. Doppler signatures of these activities were converted to spectrogram figures as the input of the classifier. The classifier was tested in five-fold cross-validation and leave-one-person-out. The Fl-score of five-fold cross-validation had higher score, which ranged from 71.11 % to 82.05%.","PeriodicalId":297049,"journal":{"name":"2020 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132689489","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}
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