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2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)最新文献

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Quasi-Isotropic Reconfigurable Antenna through Complementary Radiation Patterns for Wireless Capsule Endoscope 基于互补辐射方向图的准各向同性可重构无线胶囊内窥镜天线
2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2022-05-16 DOI: 10.1109/imbioc52515.2022.9790210
Xinning Li, Xiongying Liu
{"title":"Quasi-Isotropic Reconfigurable Antenna through Complementary Radiation Patterns for Wireless Capsule Endoscope","authors":"Xinning Li, Xiongying Liu","doi":"10.1109/imbioc52515.2022.9790210","DOIUrl":"https://doi.org/10.1109/imbioc52515.2022.9790210","url":null,"abstract":"A radiation pattern reconfigurable antenna, operating at the Industrial, Scientific, and Medical (ISM) band (902–928 MHz), is investigated for wireless capsule endoscope (WCE) systems. The proposed antenna is composed of a planar inverted-F antenna and two conformal branches. By controlling PIN diodes on the conformal branches, the antenna can switch between different working states, corresponding to two complementary radiation patterns. The simulated −10-dB impedance bandwidth in each state is 7.6% (880–950 MHz). Simulation results show that the antenna has a quasi-isotropic radiation pattern after reconfiguration with a gain deviation of 4.5 dBi in the 360° full space.","PeriodicalId":305829,"journal":{"name":"2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128425817","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
Study on Thermoacoustic Imaging Excited by Controllable Polarization Microwave 可控极化微波激发热声成像研究
2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2022-05-16 DOI: 10.1109/imbioc52515.2022.9790222
Zheng Liang, Shuaiqi Qiao, Weipeng Wang, Jiawei Long, Jing Lu, Lin Huang
{"title":"Study on Thermoacoustic Imaging Excited by Controllable Polarization Microwave","authors":"Zheng Liang, Shuaiqi Qiao, Weipeng Wang, Jiawei Long, Jing Lu, Lin Huang","doi":"10.1109/imbioc52515.2022.9790222","DOIUrl":"https://doi.org/10.1109/imbioc52515.2022.9790222","url":null,"abstract":"Thermoacoustic imaging (TAI) is widely used in biological tissue imaging, with high resolution and high contrast imaging characteristics. In this paper, a TAI method based on polarization control is proposed, which is verified by the simulation software CST. Under the condition that the polarization angles are 0°, 45°, 90° and 135°, respectively, the sauce tube model is irradiated with linearly polarized microwave excitation. When the long axis direction of the imaging sample and the direction of the electric field are the same, the amplitude of the TAI signal reaches the maximum. When the direction of the long axis is perpendicular to the direction of the electric field, the amplitude of the TAI signal is the minimum. Our study is helpful to realize the direct observation of electromagnetic field polarization direction and electric field strength in the field of microwave detection, and contribute to the overall non-destructive imaging of tiny objects.","PeriodicalId":305829,"journal":{"name":"2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131052786","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
Contactless Respiration Monitoring During Sleep with a pair of Wi-Fi devices 使用一对Wi-Fi设备进行睡眠期间的非接触式呼吸监测
2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2022-05-16 DOI: 10.1109/IMBioC52515.2022.9790212
Hongyang Zhuo, Q. Zhong, Xin Zhuo
{"title":"Contactless Respiration Monitoring During Sleep with a pair of Wi-Fi devices","authors":"Hongyang Zhuo, Q. Zhong, Xin Zhuo","doi":"10.1109/IMBioC52515.2022.9790212","DOIUrl":"https://doi.org/10.1109/IMBioC52515.2022.9790212","url":null,"abstract":"It is essential to detect human breathing signals during sleep because it can help us discover some potential disease risks in time. In recent years, contactless respiration detection based on WiFi signals has aroused extensive research interest. The paper adopts a pair of off-the-shelf WiFi devices and exploits the fine-grained channel state information (CSI) to track the respiration rate during sleep. We present a novel method to combine the amplitude and phase of the CSI ratio to address the “blind spots” issue. Our system utilizes two complementary antenna pairs to perform respiration monitoring based on the Fresnel zone model. Extensive experiment results demonstrate that our system can achieve contactless and sustainable detection of a person's respiration in different sleeping positions.","PeriodicalId":305829,"journal":{"name":"2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134389592","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
Sensor Spatial Impulse Response Model-Based Microwave Induced Thermoacoustic Reconstruction 基于传感器空间脉冲响应模型的微波热声重构
2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2022-05-16 DOI: 10.1109/IMBioC52515.2022.9790254
Shuangli Liu, Xin Shang, Weijia Wan, Lei Liu
{"title":"Sensor Spatial Impulse Response Model-Based Microwave Induced Thermoacoustic Reconstruction","authors":"Shuangli Liu, Xin Shang, Weijia Wan, Lei Liu","doi":"10.1109/IMBioC52515.2022.9790254","DOIUrl":"https://doi.org/10.1109/IMBioC52515.2022.9790254","url":null,"abstract":"Microwave induced thermoacoustic has attracted broad attention in recent years because of its potential for clinical noninvasive detection. The traditional reconstruction algorithms rarely consider ultrasonic sensor characteristics. In this paper, the sensor's electrical impulse response and spatial impulse response are considered in the model-based reconstruction method. The characteristics of the detector can be integrated into the forward model. Then, the geometric relationship between the sensor and the target is applied to build the model matrix to save time building the system dictionary. Numerical simulation results based on full-view and sparse sampling in homogeneous and inhomogeneous media indicate that the proposed model helps to improve the image quality. Validation based on experimental data will be carried out in the follow-up work.","PeriodicalId":305829,"journal":{"name":"2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132558039","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
High-Accuracy Contactless Detection of Eyes' Activities based on Short-Range Radar Sensing 基于近距离雷达传感的眼球活动高精度非接触式检测
2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2022-05-16 DOI: 10.1109/IMBioC52515.2022.9790181
Lina Ma, Yangtao Ye, Changzhan Gu, Junfa Mao
{"title":"High-Accuracy Contactless Detection of Eyes' Activities based on Short-Range Radar Sensing","authors":"Lina Ma, Yangtao Ye, Changzhan Gu, Junfa Mao","doi":"10.1109/IMBioC52515.2022.9790181","DOIUrl":"https://doi.org/10.1109/IMBioC52515.2022.9790181","url":null,"abstract":"In this paper, a contactless detection technique for eyes' blink and rotation is proposed by using a custom-designed 120 GHz radar sensing system. The experimental scene to test the movement of eyes is also given. Experiments have been performed and the results show that the proposed technique performs well in detecting and distinguishing the different movement situations of eyes, such as eyelids' blinking and eyeballs' rotation. The precise detection of the behavioral states of the eyes provides foundation for the application for health monitoring and other medical scenarios.","PeriodicalId":305829,"journal":{"name":"2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122384859","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
Thermoacoustic imaging of liver based on eddy current loss 基于涡流损耗的肝脏热声成像
2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2022-05-16 DOI: 10.1109/imbioc52515.2022.9790125
Zhu Zheng, Lin Huang
{"title":"Thermoacoustic imaging of liver based on eddy current loss","authors":"Zhu Zheng, Lin Huang","doi":"10.1109/imbioc52515.2022.9790125","DOIUrl":"https://doi.org/10.1109/imbioc52515.2022.9790125","url":null,"abstract":"Liver disease causes significant morbidity and mortality worldwide, so it is critical to diagnose and supervise liver disease. Recently, liver imaging plays an important role in non-invasive evaluation of liver disease, because of the limitation of liver biopsy. Here, we demonstrate that thermoacoustic imaging, as a noninvasive imaging method, is able to image liver in vivo. Furthermore, the phenomenon, in which a location wire's eddy current loss will change significantly in different magnetic direction, is used to cross-validate thermoacoustic image of liver. We applied this cross-validation method to rabbit liver imaging experiment in vivo. The results obtained demonstrate that TAI has the potential to provide the function information of liver, hence, become a new diagnosis and follow-up method for liver disease such as fatty liver and hepatic fibrosis","PeriodicalId":305829,"journal":{"name":"2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121670126","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
Dual-Mode Implantable Antenna with Dual Bands for Omnidirectionally In-Body and Circularly Polarized Off-Body Communications 用于全向体内和圆极化体外通信的双频段双模植入式天线
2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2022-05-16 DOI: 10.1109/imbioc52515.2022.9790282
Jie Hong, Yi Fan, Xiongying Liu
{"title":"Dual-Mode Implantable Antenna with Dual Bands for Omnidirectionally In-Body and Circularly Polarized Off-Body Communications","authors":"Jie Hong, Yi Fan, Xiongying Liu","doi":"10.1109/imbioc52515.2022.9790282","DOIUrl":"https://doi.org/10.1109/imbioc52515.2022.9790282","url":null,"abstract":"A dual-mode implantable antenna with dual bands for realizing multi functions in biomedical communications is designed. Based on microstrip antenna, slots and slow-wave structure is adopted, lowering frequency. Via loading shorting pins, different operating modes are excited. The proposed antenna operates at 915 MHz for omnidirectional in-body communication and at 2.45 GHz for circularly polarized (CP) off-body radiation. Via simulation, at 915 MHz, the antenna has an impedance bandwidth of 70 MHz (0.87 to 0.94 GHz, 7.7%). While at 2.45 GHz, the antenna has an impedance bandwidth of 300 MHz (2.38 to 2.68 GHz, 11.3%), and a 3-dB axis ratio (AR) bandwidth of 130 MHz (2.38 to 2.51 GHz, 5.3%). In the far field, at 915 MHz, the proposed antenna has a peak gain of −28.2 dBi and its half-power beamwidth (HPBW) covers 109° in E-plane with an out-of-roundness of 0.44 dB in H-plane. And at 2.45 GHz, the antenna has a maximum gain of −22.9 dBi with a HPBW of 77° and a 3-dB AR beamwidth of 80°.","PeriodicalId":305829,"journal":{"name":"2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"17 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114106339","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
Implementation of Intermediate Passive Loop Coils to Extend the Range of Qi Wireless Charging 实现中间无源环路线圈扩展Qi无线充电范围
2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2022-05-16 DOI: 10.1109/imbioc52515.2022.9790251
Mahfuzur Rahman, B. Morshed
{"title":"Implementation of Intermediate Passive Loop Coils to Extend the Range of Qi Wireless Charging","authors":"Mahfuzur Rahman, B. Morshed","doi":"10.1109/imbioc52515.2022.9790251","DOIUrl":"https://doi.org/10.1109/imbioc52515.2022.9790251","url":null,"abstract":"Wireless power transfer (WPT) based system such as Qi charging technology can not operate with a separation between transmitter and receiver coils. In this paper, a novel passive wireless loop made with magnetic wire is proposed to extend the range between the transmitter and receiver coil. One end of the proposed loop coil is placed on the Qi transmitter while the other end is placed on the Qi receiver. Experimental results are presented for coils with different number of turns and diameter, where Qi transmitter and receiver were separated by a distance of 10 inches. The proposed setup was able to reasonably provide similar performance as the traditional setup of coil nositions. while increasing the range of Oi charging.","PeriodicalId":305829,"journal":{"name":"2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128518583","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
Anti-phase microwave illumination-based thermoacoustic tomography for in vivo detection of rheumatoid arthritis in the finger joints 基于反相位微波照射的热声断层扫描在体内检测手指关节类风湿关节炎
2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2022-05-16 DOI: 10.1109/IMBioC52515.2022.9790169
Zihui Chi, Lin Huang, Dan Wu, Xiaojun Long, Xueliang Xu, Huabei Jiang
{"title":"Anti-phase microwave illumination-based thermoacoustic tomography for in vivo detection of rheumatoid arthritis in the finger joints","authors":"Zihui Chi, Lin Huang, Dan Wu, Xiaojun Long, Xueliang Xu, Huabei Jiang","doi":"10.1109/IMBioC52515.2022.9790169","DOIUrl":"https://doi.org/10.1109/IMBioC52515.2022.9790169","url":null,"abstract":"Rheumatoid arthritis (RA) impacts about 1% of the population worldwide. Here, anti-phase microwave illumination-based thermoacoustic tomography (TAT) was used to in vivo detect RA in the finger joints. Magnetic resonance imaging (MRI) was performed to verify TAT findings. The results showed that the anti-phase TAT images of the RA joints displayed abnormalities compared to the healthy ones, and they matched well with the MRI images. These prove that anti-phase TAT is able to visualize bone marrow edema and synovitis, which are important features associated with early RA. This work provides a foundation for further TAT development and validation of clinical application in detection of RA.","PeriodicalId":305829,"journal":{"name":"2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130296788","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 Subcarrier Selection Method for Wi-Fi-based Respiration Monitoring using IEEE 802.11ac/ax Protocols 基于IEEE 802.11ac/ax协议的wi - fi呼吸监测子载波选择方法
2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC) Pub Date : 2022-05-16 DOI: 10.1109/imbioc52515.2022.9790274
Ruilin Wang, Xiaolin Zhou, Bo Wang, Zhi Zheng, Yongxin Guo
{"title":"A Subcarrier Selection Method for Wi-Fi-based Respiration Monitoring using IEEE 802.11ac/ax Protocols","authors":"Ruilin Wang, Xiaolin Zhou, Bo Wang, Zhi Zheng, Yongxin Guo","doi":"10.1109/imbioc52515.2022.9790274","DOIUrl":"https://doi.org/10.1109/imbioc52515.2022.9790274","url":null,"abstract":"This paper proposes a new respiration monitoring system based on IEEE 802.11ac/ax protocols, Fresnel zone model and Wi-Fi channel state information. A new subcarrier selection method based on Signal-Noise-Ratio is proposed and Fast/Slow Breath classified wavelet transform is adopted. The results proved the proposed algorithm is better than the prior work. The overall accuracy for respiration rate estimation is about 90.12% and can be up to 94% in some scenarios.","PeriodicalId":305829,"journal":{"name":"2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129783373","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
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