Pub Date : 2024-08-23DOI: 10.1109/tmtt.2024.3442208
Tian Pei Ma, Hong Bin Wang, Yu Jian Cheng
{"title":"A Dual-Band Dual-Polarization Frequency Selective Surface With Wide-Range Flexible Band Ratio and Wide Angular Stability","authors":"Tian Pei Ma, Hong Bin Wang, Yu Jian Cheng","doi":"10.1109/tmtt.2024.3442208","DOIUrl":"https://doi.org/10.1109/tmtt.2024.3442208","url":null,"abstract":"","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"109 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-23DOI: 10.1109/TMTT.2024.3443716
Muhammad Rizwan Akram;Abbas Semnani
Plasma plays a pivotal role in numerous applications. When plasma interacts with air, it creates rare and highly reactive species. Typically, the generation of atmospheric air plasma jets relies on resonant cavities to enhance plasma efficiency. In this study, we have harnessed the innovative concept of nonradiating sources, known as anapoles, which utilize the lowest order multipoles—specifically, electric-electric dipole interactions—within a hybrid metallodielectric structure. This approach enhances the near electric field, facilitating gas breakdown for the realization of a plasma jet. The achievement of a dielectric plasma jet is remarkable in its own right, particularly when considering the open structure employed, which enables frequency tuning. Furthermore, the demonstrated prototype surpasses the existing plasma jets in several key aspects, including compactness, compatibility with planar fabrication techniques, power efficiency, cost-effectiveness, tunability, and electron density. With these substantial enhancements, the proposed technique can substantially enhance plasma jet technology and open exciting avenues for exploring novel applications.
{"title":"Nonradiating Resonances: Anapoles Enabling Highly Efficient Plasma Jets Within Dielectric Structures","authors":"Muhammad Rizwan Akram;Abbas Semnani","doi":"10.1109/TMTT.2024.3443716","DOIUrl":"10.1109/TMTT.2024.3443716","url":null,"abstract":"Plasma plays a pivotal role in numerous applications. When plasma interacts with air, it creates rare and highly reactive species. Typically, the generation of atmospheric air plasma jets relies on resonant cavities to enhance plasma efficiency. In this study, we have harnessed the innovative concept of nonradiating sources, known as anapoles, which utilize the lowest order multipoles—specifically, electric-electric dipole interactions—within a hybrid metallodielectric structure. This approach enhances the near electric field, facilitating gas breakdown for the realization of a plasma jet. The achievement of a dielectric plasma jet is remarkable in its own right, particularly when considering the open structure employed, which enables frequency tuning. Furthermore, the demonstrated prototype surpasses the existing plasma jets in several key aspects, including compactness, compatibility with planar fabrication techniques, power efficiency, cost-effectiveness, tunability, and electron density. With these substantial enhancements, the proposed technique can substantially enhance plasma jet technology and open exciting avenues for exploring novel applications.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 1","pages":"352-360"},"PeriodicalIF":4.1,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-23DOI: 10.1109/tmtt.2024.3441942
Zhicheng Lin, Kaizhe Guo, Hao Guo, Kam Man Shum, Ka Fai Chan, Chi Hou Chan
{"title":"A 180–194-GHz Power Amplifier Co-Designed With a Power-Combining End-Fed Slot Antenna Array in 65-nm CMOS","authors":"Zhicheng Lin, Kaizhe Guo, Hao Guo, Kam Man Shum, Ka Fai Chan, Chi Hou Chan","doi":"10.1109/tmtt.2024.3441942","DOIUrl":"https://doi.org/10.1109/tmtt.2024.3441942","url":null,"abstract":"","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"39 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-21DOI: 10.1109/tmtt.2024.3441541
Chunyu Li, Tiancheng Zhang, Huaguang Bao, Aiqiang Cheng, Dunjun Chen, Chao-Fu Wang, Dazhi Ding, Douglas H. Werner
{"title":"Electro-Thermal Simulation of GaN HEMT Based on a Scaling-Factor-Enhanced Time-Domain Spectral Element Solver","authors":"Chunyu Li, Tiancheng Zhang, Huaguang Bao, Aiqiang Cheng, Dunjun Chen, Chao-Fu Wang, Dazhi Ding, Douglas H. Werner","doi":"10.1109/tmtt.2024.3441541","DOIUrl":"https://doi.org/10.1109/tmtt.2024.3441541","url":null,"abstract":"","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"30 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-21DOI: 10.1109/tmtt.2024.3442615
Arkaprovo Das, Sawyer D. Campbell, Douglas H. Werner
{"title":"An Augmented Network Parameter Method for Rapid Electromagnetic-Circuit Co-Simulation in the Presence of Impinging Electromagnetic Waves","authors":"Arkaprovo Das, Sawyer D. Campbell, Douglas H. Werner","doi":"10.1109/tmtt.2024.3442615","DOIUrl":"https://doi.org/10.1109/tmtt.2024.3442615","url":null,"abstract":"","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"17 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-19DOI: 10.1109/TMTT.2024.3439566
Zibin Wang;Chengguang Li;Silong Tu;Zhenyu Liu
The author of [1] would like to appreciate the comments made by Liu and Yang [2] that indicate some issues.
[1]的作者非常感谢Liu和Yang[2]指出的一些问题。
{"title":"Authors’ Reply to “Comments on ‘A Novel Rotary FMCW Radar for Omnidirectional Multi-Person Localization and Vital Signs Detection”’","authors":"Zibin Wang;Chengguang Li;Silong Tu;Zhenyu Liu","doi":"10.1109/TMTT.2024.3439566","DOIUrl":"10.1109/TMTT.2024.3439566","url":null,"abstract":"The author of \u0000<xref>[1]</xref>\u0000 would like to appreciate the comments made by Liu and Yang \u0000<xref>[2]</xref>\u0000 that indicate some issues.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"72 12","pages":"7090-7090"},"PeriodicalIF":4.1,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-16DOI: 10.1109/TMTT.2024.3439551
Lejia Zhang;Qizhi Wang;Simin Zhao;Dantong Liu;Chenzhe Li;Baosheng Wang;Xiong Wang
Microwave-induced thermoacoustic tomography (MITAT) is a noninvasive hybrid modality that has been widely applied in a bunch of biomedical applications. MITAT integrated with cutting-edge deep learning (DL-MITAT) technique is highly promising for tackling many challenging problems that cannot be efficiently solved by traditional methods. However, the previous MITAT or DL-MITAT works rarely consider the realistic properties of the utilized ultrasound transducer, which can significantly degrade the image quality in some application scenarios. To address this issue, we propose a DL-MITAT technique applying realistic properties of ultrasound transducers (referred to as DL-MITAT-PoT), which is very effective for imaging large or long samples. To be specific, the previous related works simply assume an omnidirectional receiving pattern of the transducer. Instead, we take into account the limited receiving angle of a realistic transducer in the DL-MITAT-PoT technique to improve the imaging performance. To implement this technique, we incorporate the receiving properties of a realistic transducer into the training process of the ResU-Net network. We test the trained network by imaging several 2-mm-diameter long blood-vessel-mimicking samples via both simulations and experiments. The obtained imaging results demonstrate that the proposed DL-MITAT-PoT yields much better imaging quality than its counterpart without considering the property of the transducer. We show that the network trained using complicated vessel sample data is endowed with downward compatibility for samples having less complexity. This technique greatly improves the image quality for dealing with large or long samples and has a promising prospect in many biomedical applications.
{"title":"Deep-Learning-Based Microwave-Induced Thermoacoustic Tomography Applying Realistic Properties of Ultrasound Transducer","authors":"Lejia Zhang;Qizhi Wang;Simin Zhao;Dantong Liu;Chenzhe Li;Baosheng Wang;Xiong Wang","doi":"10.1109/TMTT.2024.3439551","DOIUrl":"10.1109/TMTT.2024.3439551","url":null,"abstract":"Microwave-induced thermoacoustic tomography (MITAT) is a noninvasive hybrid modality that has been widely applied in a bunch of biomedical applications. MITAT integrated with cutting-edge deep learning (DL-MITAT) technique is highly promising for tackling many challenging problems that cannot be efficiently solved by traditional methods. However, the previous MITAT or DL-MITAT works rarely consider the realistic properties of the utilized ultrasound transducer, which can significantly degrade the image quality in some application scenarios. To address this issue, we propose a DL-MITAT technique applying realistic properties of ultrasound transducers (referred to as DL-MITAT-PoT), which is very effective for imaging large or long samples. To be specific, the previous related works simply assume an omnidirectional receiving pattern of the transducer. Instead, we take into account the limited receiving angle of a realistic transducer in the DL-MITAT-PoT technique to improve the imaging performance. To implement this technique, we incorporate the receiving properties of a realistic transducer into the training process of the ResU-Net network. We test the trained network by imaging several 2-mm-diameter long blood-vessel-mimicking samples via both simulations and experiments. The obtained imaging results demonstrate that the proposed DL-MITAT-PoT yields much better imaging quality than its counterpart without considering the property of the transducer. We show that the network trained using complicated vessel sample data is endowed with downward compatibility for samples having less complexity. This technique greatly improves the image quality for dealing with large or long samples and has a promising prospect in many biomedical applications.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"72 10","pages":"5983-5993"},"PeriodicalIF":4.1,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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