IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology最新文献_第4页

Corrections to “Spectroscopic Analysis of Candida Species, Viability, and Antifungal Drug Effects with a Microwave Flow Cytometer” 对 "利用微波流式细胞仪对念珠菌种类、活力和抗真菌药物效果进行光谱分析 "的更正

IF 3.2

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-03-22 DOI: 10.1109/JERM.2024.3379771

Neelima Dahal;Jeffrey A. Osterberg;Benjamin Braun;Tom P. Caldwell;Ralu Divan;Sarah W. Harcum;Pingshan Wang

引用次数: 0

IEEE Journal of Electromagnetics, RF, and Microwaves in Medicine and Biology About this Journal IEEE Journal of Electromagnetics, RF, and Microwaves in Medicine and Biology 关于本期刊

IF 3.2

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-03-22 DOI: 10.1109/JERM.2024.3400475

引用次数: 0

Dual Mode Split Ring Resonator Sensing and Hyperthermia Array for Skin 用于皮肤的双模分环谐振器传感和热疗阵列

IF 3

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-03-18 DOI: 10.1109/JERM.2024.3373537

Yuchen Gu;Dustin Kendig;Mo Shakouri;Daniel W. van der Weide

{"title":"Dual Mode Split Ring Resonator Sensing and Hyperthermia Array for Skin","authors":"Yuchen Gu;Dustin Kendig;Mo Shakouri;Daniel W. van der Weide","doi":"10.1109/JERM.2024.3373537","DOIUrl":"https://doi.org/10.1109/JERM.2024.3373537","url":null,"abstract":"We demonstrate an applicator array based on split ring resonators (SRR) and microstrip coupled lines to serve as a dual-mode tool to conduct both microwave sensing and hyperthermia for skin cancer. The prototype applicator is realized on a low-cost, multi-layer substrate and designed to host 3 × 3 unit cells in which each unit in a row is tuned to a separate frequency ranging from 8 to 15 GHz (unloaded). E-field enhancement is achieved across the sensing regions between SRR loop terminals by feeding magnetically coupled energy to SRRs through microstrip transmission lines. The concentrated E-field leads to the applicator's high sensitivity that is also enhanced by the via fences surrounding the unit cells. EM simulation and equivalent circuit extraction are analyzed to ensure resonance consistency. We further observe the sensing capability on different skin-mimicking, off-the-shelf animal tissue in both simulations and experiments by distinguishing resonance shift and attenuation with different material under test (MUT). Coupled with transient infrared imaging, we further demonstrate hyperthermia capabilities of the applicator using skin-mimicking tissue. Using less than 5 W of input power, the applicator can induce therapeutic temperature elevation.","PeriodicalId":29955,"journal":{"name":"IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology","volume":"8 3","pages":"206-212"},"PeriodicalIF":3.0,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142041433","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 Microwave Thorax Imaging for Human Respiration Monitoring 用于人体呼吸监测的微波胸部成像研究

IF 3.2

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-03-18 DOI: 10.1109/JERM.2024.3372296

Haolin Zhang;Tong Zhang;Maokun Li;Fan Yang;Shenheng Xu;Yeyu Cao;Zhongjun Yu;Aria Abubakar

引用次数: 0

An Open Source 16-Channel Breast Array for Prone and Supine MRI 用于俯卧和仰卧磁共振成像的开源 16 通道乳腺阵列

IF 3

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-03-14 DOI: 10.1109/JERM.2024.3396697

Folk W. Narongrit;Thejas Vishnu Ramesh;Joseph V. Rispoli

引用次数: 0

Modulation of Zebrafish Heart Rate by Alternating Magnetic Fields With Frequencies Close to Heart Rhythm 频率接近心律的交变磁场对斑马鱼心率的调节

IF 3

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-03-13 DOI: 10.1109/JERM.2024.3397557

Viacheslav V. Krylov;Daniil A. Sizov;Alexander S. Machikhin;Anastasia V. Guryleva;Vladimir Tchougounov;Alexander B. Burlakov

{"title":"Modulation of Zebrafish Heart Rate by Alternating Magnetic Fields With Frequencies Close to Heart Rhythm","authors":"Viacheslav V. Krylov;Daniil A. Sizov;Alexander S. Machikhin;Anastasia V. Guryleva;Vladimir Tchougounov;Alexander B. Burlakov","doi":"10.1109/JERM.2024.3397557","DOIUrl":"https://doi.org/10.1109/JERM.2024.3397557","url":null,"abstract":"Extremely low-frequency magnetic fields (ELF-MF) up to 100 μT exhibit impacts on physiological processes, including heart function. The mechanisms underlying the influence of these fields on fish heart rates remain insufficiently explored. We assumed that the direct impact of ELF-MF with a frequency close to the heart rate could entrain oscillatory processes responsible for autonomously maintaining heart rhythm in zebrafish embryos. Embryos' heart rates ranged from 1.44 to 3 Hz depending on age, and ELF-MF with frequencies precisely matched, 10% higher, or lower than the heart rate were applied. Additionally, embryos experienced ELF-MF with amplitudes varying by an order of magnitude. Almost all tested ELF-MF induced an increased heart rate effect. This effect was the most pronounced when the exposure occurred earlier during ontogenesis. Fields with frequencies close to the heart rate did not entrain cardiac contractions in zebrafish embryos. A significant negative correlation between heart rate increase and ELF-MF frequency was observed for ELF-MF with amplitudes of 1.98–3.2 μT and 46.8 μT but not 30 μT. Probable molecular mechanisms underlying these effects are discussed in terms of magnetic influence on radical pairs within biochemical oscillating processes.","PeriodicalId":29955,"journal":{"name":"IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology","volume":"8 4","pages":"317-324"},"PeriodicalIF":3.0,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691677","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

Sensitivity Enhancement in Cardio-Pulmonary Stethoscope Applications Through Artificial Magnetic Conductor-Backed Antenna Design 通过人工磁导体支撑天线设计提高心肺听诊器应用的灵敏度

IF 3.2

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-03-12 DOI: 10.1109/JERM.2024.3372290

Pei-Yu He;Fei-Peng Lai;Yen-Sheng Chen

{"title":"Sensitivity Enhancement in Cardio-Pulmonary Stethoscope Applications Through Artificial Magnetic Conductor-Backed Antenna Design","authors":"Pei-Yu He;Fei-Peng Lai;Yen-Sheng Chen","doi":"10.1109/JERM.2024.3372290","DOIUrl":"https://doi.org/10.1109/JERM.2024.3372290","url":null,"abstract":"This paper presents an antenna for the cardio-pulmonary stethoscope (CPS) to improve sensitivity in detecting pulmonary edema. The CPS employs a dual-antenna system for monitoring the transmission coefficient. However, conventional patch antennas used in CPS setups often exhibit limited sensitivity due to frequency detuning. This study addresses this limitation through a two-stage approach. Firstly, the design goals of the CPS antenna are characterized. The results prioritize a broad impedance bandwidth, large half-power beamwidth (HPBW), and high front-to-back ratio (FBR) as key design objectives. Secondly, an antenna backed with an artificial magnetic conductor (AMC) is proposed to meet the specified goals. The fabricated prototype, operating at 2.4 GHz with an AMC size of 81.0 × 81.0 mm\u0000<sup>2</sup>\u0000, exhibits a fractional bandwidth of 27.6%, a FBR of 18.5 dB, and HPBWs of 60° and 70°. Validation is conducted using phantom models simulating different water content levels. The conventional patch antenna yields transmission coefficients between –49.6 dB and –63.5 dB; in contrast, the proposed antenna achieves transmission coefficients ranging from –35.5 dB to –45.7 dB. The sensitivities for normal and severe water contents are improved by 14.1 dB and 17.8 dB, respectively, indicating higher sensitivity and performance enhancement in CPS remote monitoring.","PeriodicalId":29955,"journal":{"name":"IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology","volume":"8 2","pages":"135-143"},"PeriodicalIF":3.2,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141084876","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

Code Division Multi-Point RF Near-Field Cardiac Sensing System for Noninvasive Atrioventricular and Interventricular Dyssynchrony Detection 用于无创检测心房和心室间不同步的码分多点射频近场心脏传感系统

IF 3.2

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-03-09 DOI: 10.1109/JERM.2024.3393755

Zhewei Ye;Chenming Li;Yankai Mao;Juhong Zhang;Wenbin Zhang;Yulin Zhou;Qijun Hu;Shilie Zheng;Xiaonan Hui;Xianmin Zhang

{"title":"Code Division Multi-Point RF Near-Field Cardiac Sensing System for Noninvasive Atrioventricular and Interventricular Dyssynchrony Detection","authors":"Zhewei Ye;Chenming Li;Yankai Mao;Juhong Zhang;Wenbin Zhang;Yulin Zhou;Qijun Hu;Shilie Zheng;Xiaonan Hui;Xianmin Zhang","doi":"10.1109/JERM.2024.3393755","DOIUrl":"https://doi.org/10.1109/JERM.2024.3393755","url":null,"abstract":"Monitoring cardiac mechanical dyssynchrony of a patient has a pivotal role in the cardiovascular disease and cardiac resynchronization therapy (CRT), however current approaches highly demand on the operator's skill and experience. In addition, the clinical instrument is limited by high standard operation conditions and hardware and maintenance costs, which leads to restricted deployment in daily life monitoring. To solve the problems, we propose a code division multi-point near-field cardiac RF sensing system that the mechanical movements of the heart chambers can be directly modulated to the radio frequency signal, from which the signals obtained through processing and analysis can not only locate the P-wave, QRS-waves, and T-wave in the electrocardiogram (ECG), but also they are used to analyze atrioventricular mechanical dyssynchrony and interventricular mechanical dyssynchrony. Furthermore, to reduce the crosstalk between signals from different channels and improve digital signal dynamic range, code division is applied for the multiple sensing points access. The RF sensing system can be readily designed with a high sampling rate, 50 kSps in this work, to recover the high frequency mechanical dynamics of the heart. The system demonstrated in this work provides 4-channel cardiac monitoring on the heart chambers with a high dynamic range, temporal resolution of 20 µs, and frequency response of 25 kHz. This novel method of monitoring the mechanical movement of the heartbeat provides a new candidate to further explore the cardiovascular disease and CRT treatment.","PeriodicalId":29955,"journal":{"name":"IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology","volume":"8 2","pages":"113-121"},"PeriodicalIF":3.2,"publicationDate":"2024-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141084874","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

Experimental Detection of Early-Stage Lung and Skin Tumors Based on Super Wideband Imaging 基于超宽带成像的早期肺癌和皮肤癌实验检测

IF 3.2

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-03-07 DOI: 10.1109/JERM.2024.3395923

Wasan Alamro;Boon-Chong Seet;Lulu Wang;Prabakar Parthiban

引用次数: 0

Efficient and Low Leakage WPT System With Integrated Uncomplicated Matching Circuit Rectifier Using Metamaterial Director and Isolator for Biomedical Application 高效低漏电 WPT 系统，集成了使用超材料导向器和隔离器的简便匹配电路整流器，适用于生物医学应用

IF 3.2

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-03-06 DOI: 10.1109/JERM.2024.3395572

Shimaa Alshhawy;Adel Barakat;Ramesh K. Pokharel

{"title":"Efficient and Low Leakage WPT System With Integrated Uncomplicated Matching Circuit Rectifier Using Metamaterial Director and Isolator for Biomedical Application","authors":"Shimaa Alshhawy;Adel Barakat;Ramesh K. Pokharel","doi":"10.1109/JERM.2024.3395572","DOIUrl":"https://doi.org/10.1109/JERM.2024.3395572","url":null,"abstract":"Supplying wireless power to biomedical implants presents numerous challenges, including the compactness, efficiency, and biomedical safety of the receiver (RX). In this work, we propose several solutions to overcome these challenges. Firstly, we designed a metamaterial-inspired transmitter (TX) based on a multi-ring resonator (MRR). This transmitter achieves low magnetic loss and is used as a director to supply power to the RX, featuring an integrated uncomplicated matching circuit rectifier. Secondly, to realize the rectifier, we leverage the high coupling achieved through the proposed MRR metamaterial. The rectifier is integrated on the backside of the RX substrate without requiring additional area for further compactness. Additionally, we introduce a metamaterial-based isolator designed to reduce magnetic field leakage on the back side of the system. Importantly, this isolator has been proven to have no adverse effects on the original wireless power transfer (WPT) system's performance. A prototype was successfully fabricated, and both RF-dc simulation and measurements indicate a peak efficiency of 43% and 39%, respectively, at 50 MHz for a 9 mm embedded RX in chicken breast tissue. The TX size is 20 mm × 20 mm, while the integrated RX/rectifier has dimensions of 7 mm × 7 mm.","PeriodicalId":29955,"journal":{"name":"IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology","volume":"8 2","pages":"144-154"},"PeriodicalIF":3.2,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141084776","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