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2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI)最新文献

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Evaluating NGBoost as a Model for Probabilistic Prediction for V-Band Power Attenuation 评估NGBoost作为v波段功率衰减概率预测模型
2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI) Pub Date : 2023-07-23 DOI: 10.1109/USNC-URSI52151.2023.10238207
R. Gesner, Christos G. Christodoulou, Steven A. Lane
{"title":"Evaluating NGBoost as a Model for Probabilistic Prediction for V-Band Power Attenuation","authors":"R. Gesner, Christos G. Christodoulou, Steven A. Lane","doi":"10.1109/USNC-URSI52151.2023.10238207","DOIUrl":"https://doi.org/10.1109/USNC-URSI52151.2023.10238207","url":null,"abstract":"A novel application of probabilistic prediction for estimating mm-wave attenuation due to varying weather conditions is developed. Validation of atmospheric propagation models in the W/V-bands has progressed greatly in past years, but the confidence of their predictions has not been validated. The Natural Gradient Boosting (NGBoost) algorithm is tested against a deep neural network to estimate atmospheric attenuation on a 72 GHz terrestrial link and to demonstrate the ability to produce prediction confidence estimates.","PeriodicalId":383636,"journal":{"name":"2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114767121","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
Formula for Generating Gaussian Beams Using Smooth-Walled Conical Horn Antennas 利用光滑壁锥形喇叭天线产生高斯波束的公式
2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI) Pub Date : 2023-07-23 DOI: 10.1109/USNC-URSI52151.2023.10238246
Ricardo A. M. Pereira, N. B. Carvalho
{"title":"Formula for Generating Gaussian Beams Using Smooth-Walled Conical Horn Antennas","authors":"Ricardo A. M. Pereira, N. B. Carvalho","doi":"10.1109/USNC-URSI52151.2023.10238246","DOIUrl":"https://doi.org/10.1109/USNC-URSI52151.2023.10238246","url":null,"abstract":"By studying the design procedures of smooth-walled conical horn antennas and the gaussian beam they create, formulas were derived that relate the antenna's dimensions with the beam parameters. These are presented here, enabling the fast design of horns with specific quasioptical characteristics. Using these formulas, two different sets of horn antennas were designed for wireless power transfer applications which were later built by 3D printing or additively manufactured, at 5.8 GHz and 24 GHz, respectively. These antennas are discussed here, validating the formulas derived previously.","PeriodicalId":383636,"journal":{"name":"2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114961890","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 Comparison of Image Reconstruction Versus Array Layout in a 24-Element 38-GHz Active Incoherent Millimeter-Wave Imaging System 24元38ghz有源非相干毫米波成像系统中图像重建与阵列布局的比较
2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI) Pub Date : 2023-07-23 DOI: 10.1109/USNC-URSI52151.2023.10237436
Jorge R. Colon-Berrios, Daniel Chen, Derek Luzano, J. Nanzer
{"title":"A Comparison of Image Reconstruction Versus Array Layout in a 24-Element 38-GHz Active Incoherent Millimeter-Wave Imaging System","authors":"Jorge R. Colon-Berrios, Daniel Chen, Derek Luzano, J. Nanzer","doi":"10.1109/USNC-URSI52151.2023.10237436","DOIUrl":"https://doi.org/10.1109/USNC-URSI52151.2023.10237436","url":null,"abstract":"We compare the image reconstruction quality of two array layouts in a 24-element 38-GHz active incoherent millimeter-wave (AIM) imaging system. Compared to traditional passive millimeter-wave imaging systems, AIM imaging uses the transmission of spatiotemporally incoherent signals, leading to better sensitivity and enabling image reconstruction at rates exceeding 650 fps. Fast imaging of conducting objects may lead to improvements in a number of applications including non-destructive evaluation. AIM image reconstruction quality, and thus the capability to diagnose defects, is highly dependent on the physical layout of the antennas. In this work we compare a traditional Y-shaped array with a uniform circular (O-array) layout with the same number of elements. The O-array has less redundancy and thus yields more spatial frequency samples, leading to improved image quality. We investigate imaging of a set of conducting objects to show improved spurious signal reduction in the O-array.","PeriodicalId":383636,"journal":{"name":"2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI)","volume":"178 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115109417","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
Measurement of 300 GHz Band Radio Propagation Characteristics in the Vicinity of Human Body using Terahertz Hemispheric Scanner 用太赫兹半球扫描仪测量人体附近300 GHz波段无线电传播特性
2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI) Pub Date : 2023-07-23 DOI: 10.1109/USNC-URSI52151.2023.10237779
Akihiko Hirata
{"title":"Measurement of 300 GHz Band Radio Propagation Characteristics in the Vicinity of Human Body using Terahertz Hemispheric Scanner","authors":"Akihiko Hirata","doi":"10.1109/USNC-URSI52151.2023.10237779","DOIUrl":"https://doi.org/10.1109/USNC-URSI52151.2023.10237779","url":null,"abstract":"This paper presents the measurement of the direction of arrival (DOA) of 300-GHz-band radio propagation in the vicinity of a human body. We have developed a high-speed terahertz hemispheric scanner that can measure the DOA of 300-GHz-band radio signals with an angular resolution of 0.5°, and a human body phantom whose complex permittivity is close to the human body at 300 GHz band. Furthermore, DOA measurement results indicate that clothing significantly affects diffraction and reflection characteristics near a human body at 300 GHz.","PeriodicalId":383636,"journal":{"name":"2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116296101","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
Derivation of Maxwell's Equations Using Field-Impulses 用场脉冲推导麦克斯韦方程组
2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI) Pub Date : 2023-07-23 DOI: 10.1109/USNC-URSI52151.2023.10237727
E. L. Tan
{"title":"Derivation of Maxwell's Equations Using Field-Impulses","authors":"E. L. Tan","doi":"10.1109/USNC-URSI52151.2023.10237727","DOIUrl":"https://doi.org/10.1109/USNC-URSI52151.2023.10237727","url":null,"abstract":"Recently, new fundamental equations for electromagnetics have been presented using field-impulses as physical field-integrators. The field-impulses are physically real, causal and gauge-independent for aptly describing electromagnetics. This paper presents the derivation of Maxwell's (Faraday and Ampere) equations using field-impulses. The derivation assumes that the equations are not available in complete explicit form beforehand, and only makes references to some earlier key findings before Maxwell. It also exploits judiciously the definition and relation of field-impulses, the physical reality of their time/spatial derivatives and their mathematical (e.g. solenoidal) properties. Being the necessary and sufficient fundamental physical quantities, the field-impulses find usefulness in field derivation as well as many aspects of classical and quantum electromagnetics.","PeriodicalId":383636,"journal":{"name":"2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123396225","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
Design of a Flexible Antenna Using Weaving Technique for C-Band Applications 基于织造技术的c波段柔性天线设计
2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI) Pub Date : 2023-07-23 DOI: 10.1109/USNC-URSI52151.2023.10238015
Yohandri, F. A. Haqqi, Achmad Munir
{"title":"Design of a Flexible Antenna Using Weaving Technique for C-Band Applications","authors":"Yohandri, F. A. Haqqi, Achmad Munir","doi":"10.1109/USNC-URSI52151.2023.10238015","DOIUrl":"https://doi.org/10.1109/USNC-URSI52151.2023.10238015","url":null,"abstract":"A flexible C-band antenna design using conductive wire weaving technique is introduced. An antenna consists of three layers: a groundplane, a radiator, and a parasitic element on top. The square radiator element is made of woven ladder yarn. At the same time, both the grounding element and the parasitic element are made of flexible copper sheets. On the other hand, the antenna substrate is made of denim material with a dielectric constant of 1.7 and a loss tangent of 0.024. The antenna design is optimized using finite element method (FEM). The antenna is designed for use in the C-band with a center frequency of 5.3 GHz. Simulation results show that the antenna design has a gain of 4.8 dB, a reflection coefficient bandwidth (S11) of 7.02%, and the highest efficiency of 62.7% at the center of the operating frequency. Based on the simulation results, the weaving technique produces good antenna performance and can be used in various C-band applications.","PeriodicalId":383636,"journal":{"name":"2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123408362","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
Microwave Imaging Based Lesion Monitoring During Infarct Ablation: Feasibility Study 基于微波成像的梗死消融过程中病变监测:可行性研究
2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI) Pub Date : 2023-07-23 DOI: 10.1109/USNC-URSI52151.2023.10237557
Sunil Gaddam, Poulami Samaddar, K. Gopalakrishnan, Keirthana Aedma, D. Damani, Suganti Shivaram, Shuvashis Dey, Sayan Roy, Dipankar Mitra, S. P. Arunachalam
{"title":"Microwave Imaging Based Lesion Monitoring During Infarct Ablation: Feasibility Study","authors":"Sunil Gaddam, Poulami Samaddar, K. Gopalakrishnan, Keirthana Aedma, D. Damani, Suganti Shivaram, Shuvashis Dey, Sayan Roy, Dipankar Mitra, S. P. Arunachalam","doi":"10.1109/USNC-URSI52151.2023.10237557","DOIUrl":"https://doi.org/10.1109/USNC-URSI52151.2023.10237557","url":null,"abstract":"Sudden cardiac death rate post-myocardial infarction due to arrhythmia is increasing. Cardiac ablation of infarcts is shown to reduce arrhythmogenic events. Current methods are inadequate to monitor the lesions during infarct ablation. Therefore novel noninvasive tools are necessary to provide real-time monitoring of ablation and to titrate the ablative power to reduce arrhythmogenicity. The purpose of this simulation study was to demonstrate the feasibility of microwave imaging (MWI) to monitor the temperature profile of the lesions during infarct ablation. A 2D model of the left ventricle was used with an infarct region of interest for microwave imaging electromagnetic simulation at 915 MHz using known myocardial dielectric properties and its temperature dependence. Distorted Born Iterative Method (DBIM) was used to reconstruct the relative permittivity that is mapped to the temperature field and compared within the infarct region. Good agreement was observed between the reconstructed and assigned temperature field within the infarct region. The study demonstrates the feasibility of using MWI for the non-invasive assessment of infarct tissue temperatures during ablation.","PeriodicalId":383636,"journal":{"name":"2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123473508","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-Efficient Double Negative Metamaterial-based Absorber 高效双负超材料基吸收器
2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI) Pub Date : 2023-07-23 DOI: 10.1109/USNC-URSI52151.2023.10237915
Kozhakhmet Abdugapbar, Kassen Dautov, Mohammad S. Hashmi, G. Nauryzbayev
{"title":"High-Efficient Double Negative Metamaterial-based Absorber","authors":"Kozhakhmet Abdugapbar, Kassen Dautov, Mohammad S. Hashmi, G. Nauryzbayev","doi":"10.1109/USNC-URSI52151.2023.10237915","DOIUrl":"https://doi.org/10.1109/USNC-URSI52151.2023.10237915","url":null,"abstract":"This paper presents a multi-layered, high-efficient metamaterial-based absorber operating at 3.7 GHz. The metamaterial is constructed on the basis of a single unit cell (UC) and possesses a compact board size of 25-by-25 sq. mm. It is imperative to mention that the UC parameters were optimized in order to obtain maximum efficiency. Besides, a feed line was added to the bottom layer that enables connecting the metamaterial to any given load with a 50-Ω impedance. Finally, the designed metamaterial demonstrated the double negative material properties and the absorbance efficiency of 85%.","PeriodicalId":383636,"journal":{"name":"2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI)","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123585987","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
Gain of LL Metaloop-n Antennas l - Metaloop-n天线增益
2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI) Pub Date : 2023-07-23 DOI: 10.1109/USNC-URSI52151.2023.10237754
H. Nakano, T. Abe, J. Yamauchi
{"title":"Gain of LL Metaloop-n Antennas","authors":"H. Nakano, T. Abe, J. Yamauchi","doi":"10.1109/USNC-URSI52151.2023.10237754","DOIUrl":"https://doi.org/10.1109/USNC-URSI52151.2023.10237754","url":null,"abstract":"A metaloop antenna whose circumference, $C$, is larger than two free-space wavelengths $(C=mlambda_{0}$ with $m > 2$ is designated as an LL metaloop antenna. This paper focuses on the gain of the LL metaloop antenna. Firstly, the gain is investigated under the condition that $C$ is one guided wavelength: $C=mlambda_{0}=1lambda_{mathrm{g}}$ with $m > 2$. This gain is referred to as the reference gain. Secondly, a different situation is simulated, where an electronic component, ELC, is inserted into the large space within the loop of the LL metaloop antenna. It is found that the gain at certain sizes of the ELC is either larger or smaller than the reference gain.","PeriodicalId":383636,"journal":{"name":"2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122147093","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
Four Port CP-MIMO Antenna of Triangle Slots 三角槽四端口CP-MIMO天线
2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI) Pub Date : 2023-07-23 DOI: 10.1109/USNC-URSI52151.2023.10237957
Syed M. Sifat, S. Shams, A. Kishk
{"title":"Four Port CP-MIMO Antenna of Triangle Slots","authors":"Syed M. Sifat, S. Shams, A. Kishk","doi":"10.1109/USNC-URSI52151.2023.10237957","DOIUrl":"https://doi.org/10.1109/USNC-URSI52151.2023.10237957","url":null,"abstract":"A 2 x 2 multiple input multiple outputs (MIMO) circularly polarized CP-MIMO antenna is designed. An artificial magnetic conductor backs the slots to eliminate back radiation. Each slot is coupled to two orthogonal printed microstrip lines from a power divider that equally divides the power with a 90° phase difference for CP radiation. The proposed antenna provides 7.5 dBi peak gain and 12.7% axial ratio (AR) bandwidth with isolation better than -20 dB.","PeriodicalId":383636,"journal":{"name":"2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI)","volume":"199 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125868783","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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