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2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium)最新文献

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Dual-Polarized Gap Waveguide 双极化间隙波导
2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2020-07-05 DOI: 10.23919/USNC/URSI49741.2020.9321641
Riddhi Goswami, A. Kishk
{"title":"Dual-Polarized Gap Waveguide","authors":"Riddhi Goswami, A. Kishk","doi":"10.23919/USNC/URSI49741.2020.9321641","DOIUrl":"https://doi.org/10.23919/USNC/URSI49741.2020.9321641","url":null,"abstract":"Aiming to introduce a new guiding structure, this work presents dually polarized gap waveguide (DPGWG) operating in transverse electromagnetic (TEM) mode. To show the proof of concept, two waveports are connected at the ends of waveguide and transmission (for both horizontal and vertical polarization) is observed. Electric field distribution at two different cross sections shows that the proposed design supports TEM mode with uniform field distribution.","PeriodicalId":443426,"journal":{"name":"2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121389487","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
Electromagnetic Fields of Dipole Sources in Multilayered Arbitrary Anisotropic Formation 多层任意各向异性地层中偶极源的电磁场
2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2020-07-05 DOI: 10.23919/USNC/URSI49741.2020.9321686
Shubin Zeng, Jiefu Chen, Xufei Hu
{"title":"Electromagnetic Fields of Dipole Sources in Multilayered Arbitrary Anisotropic Formation","authors":"Shubin Zeng, Jiefu Chen, Xufei Hu","doi":"10.23919/USNC/URSI49741.2020.9321686","DOIUrl":"https://doi.org/10.23919/USNC/URSI49741.2020.9321686","url":null,"abstract":"The electromagnetic fields radiated by electric and magnetic dipole sources in multilayered formation with full-tensor dielectric and conductivity anisotropy are formulated in this paper. By reformulating the Maxwell’s equations in the spectral domain and solving the electric and magnetic fields in the spatial domain using the Fourier transform, the electromagnetic responses from dipole sources can be acquired. The total field in multilayered formation consists of two parts: direct wave field and reflected wave fields from bottom and top layers. Generalized reflection and transmission matrices are derived to express the wave fields in arbitrary layers. The numerical results show good agreement with the finite element results.","PeriodicalId":443426,"journal":{"name":"2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116758462","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
Adaptive Sensing Matrix Design in Compressive Sensing Based Direction of Arrival Estimation with Hardware Constraints 基于硬件约束的压缩感知到达方向估计的自适应感知矩阵设计
2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2020-07-05 DOI: 10.23919/USNC/URSI49741.2020.9321646
Berkan Kiliç, M. Kalfa, O. Arikan
{"title":"Adaptive Sensing Matrix Design in Compressive Sensing Based Direction of Arrival Estimation with Hardware Constraints","authors":"Berkan Kiliç, M. Kalfa, O. Arikan","doi":"10.23919/USNC/URSI49741.2020.9321646","DOIUrl":"https://doi.org/10.23919/USNC/URSI49741.2020.9321646","url":null,"abstract":"Compressive sensing (CS) techniques are able to decrease hardware complexity in various applications including direction of arrival (DoA) estimation using antenna arrays. In CS based DoA estimation systems, analog outputs of the antenna elements are compressed by a matrix called sensing matrix and digitized after compression. This operation reduces the number of analog-to-digital converters in the hardware implementation. However, constraints resulting from hardware implementation of sensing matrices are not considered in general which can drastically increase the system complexity. In this study, we propose a novel adaptive sensing matrix design methodology by including such hardware implementation constraints.","PeriodicalId":443426,"journal":{"name":"2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114667100","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: 3
Importance of Hydrostatic Delay Models in Deriving PWV from GPS Signal Delays 静压延迟模型在GPS信号延迟中求PWV的重要性
2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2020-07-05 DOI: 10.23919/USNC/URSI49741.2020.9321682
Shilpa Manandhar, Y. Lee, Yu Song Meng
{"title":"Importance of Hydrostatic Delay Models in Deriving PWV from GPS Signal Delays","authors":"Shilpa Manandhar, Y. Lee, Yu Song Meng","doi":"10.23919/USNC/URSI49741.2020.9321682","DOIUrl":"https://doi.org/10.23919/USNC/URSI49741.2020.9321682","url":null,"abstract":"Studies have shown that Precipitable Water Vapor (PWV) derived from the Global Positioning System (GPS) signal delays are useful in remote sensing applications like rainfall prediction. The GPS-PWV values are derived from the zenith Wet Delays (ZW D). The accuracy of the GPS-PWV values largely depends on the accuracy of ZW D values, which are depended on the accuracy of the Zenith Hydrostatic Delays (ZHD). In this paper, the effect of different ZHD models on the GPS-PWV values are analyzed using 1 year of data from 6 different GPS stations. It was found that the performance of the different ZHD models varies as per the location and an optimum ZHD model is suggested for the different regions.","PeriodicalId":443426,"journal":{"name":"2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114764355","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
Characterization of the Channel Behavior Between Two Nearby Parabolic Antennas in the Frequency Domain 两个附近抛物面天线在频域上的信道特性
2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2020-07-05 DOI: 10.23919/USNC/URSI49741.2020.9321687
A. Rangel, A. Gallego, F. Vega, R. Campos, J. Becerra
{"title":"Characterization of the Channel Behavior Between Two Nearby Parabolic Antennas in the Frequency Domain","authors":"A. Rangel, A. Gallego, F. Vega, R. Campos, J. Becerra","doi":"10.23919/USNC/URSI49741.2020.9321687","DOIUrl":"https://doi.org/10.23919/USNC/URSI49741.2020.9321687","url":null,"abstract":"In an effort to characterize the behavior of the channel between two nearby parabolic antennas as a function of different system parameters (distance and azimuth angle) is presented. The antennas were considered as a Linear Time Invariant (LTI) System and its coupling was represented by the transmission S-parameter, which was obtained for several scenarios by simulation mean. The Cauchy Method is applied to extract the Singularity Expansion Method (SEM) poles in frequency domain. A rational model is obtained for each parameter configuration. The resonances extracted of the S-parameter data was validated comparing the system response and its reconstruction.","PeriodicalId":443426,"journal":{"name":"2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126712126","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
Surface Impedance Modeling of Metasurfaces with Printed Elements 基于印刷元件的超表面阻抗建模
2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2020-07-05 DOI: 10.23919/USNC/URSI49741.2020.9321634
R. Shavit
{"title":"Surface Impedance Modeling of Metasurfaces with Printed Elements","authors":"R. Shavit","doi":"10.23919/USNC/URSI49741.2020.9321634","DOIUrl":"https://doi.org/10.23919/USNC/URSI49741.2020.9321634","url":null,"abstract":"This paper describes the design process of a 2D flat lens based on metasurface printed elements. The printed elements are modeled as tensor surface impedances to simplify the design process. The designed lens exhibits satisfactory radiation pattern.","PeriodicalId":443426,"journal":{"name":"2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117255813","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
Wearable Antennas for On-Body Motion Detection 用于身体运动检测的可穿戴天线
2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2020-07-05 DOI: 10.23919/USNC/URSI49741.2020.9321663
Umar Hasni, E. Topsakal
{"title":"Wearable Antennas for On-Body Motion Detection","authors":"Umar Hasni, E. Topsakal","doi":"10.23919/USNC/URSI49741.2020.9321663","DOIUrl":"https://doi.org/10.23919/USNC/URSI49741.2020.9321663","url":null,"abstract":"Applications in the field of wearable electronics have seen significant growth in recent years. The wearable electronics industry itself is expected to grow up to $54 billion by 2023 [1]. Smart watches capable of various IoT and health data acquisition applications account for a significant portion of the wearable market. These devices are capable of extracting health data such as heart and respiratory rate, step count and even EKG snapshots. However, multiple devices are needed for accurate data which directly impacts everyday practicality as at any given moment a finite number of devices can be worn by an individual. With increasing demand for advanced features such as gesture control and high speed (5G) wireless IoT device interface, multiple wearable sensors/devices are needed. This has prompted development of unified wearable electronics where the devices are either part of or made of everyday clothing materials. In this article a novel antenna topology on fabric substrates for on-body motion detection for health monitoring applications is presented. The design process for the antenna fabrication via screen printing on fabric substrates is outlined along with antenna response on human skin.","PeriodicalId":443426,"journal":{"name":"2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130485627","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: 3
[USNC/URSI 2020 Title Page] [USNC/URSI 2020标题]
2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2020-07-05 DOI: 10.23919/usnc/ursi49741.2020.9321622
{"title":"[USNC/URSI 2020 Title Page]","authors":"","doi":"10.23919/usnc/ursi49741.2020.9321622","DOIUrl":"https://doi.org/10.23919/usnc/ursi49741.2020.9321622","url":null,"abstract":"","PeriodicalId":443426,"journal":{"name":"2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131146756","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
Subharmonic Mixing Using a Reflective Spatio-Temporally Modulated Metasurface 利用反射时空调制超表面的次谐波混频
2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2020-07-05 DOI: 10.23919/USNC/URSI49741.2020.9321648
Zhan Wu, C. Scarborough, A. Grbic
{"title":"Subharmonic Mixing Using a Reflective Spatio-Temporally Modulated Metasurface","authors":"Zhan Wu, C. Scarborough, A. Grbic","doi":"10.23919/USNC/URSI49741.2020.9321648","DOIUrl":"https://doi.org/10.23919/USNC/URSI49741.2020.9321648","url":null,"abstract":"A reflective, dual-polarized, space-time metasurface with subwavelength unit cells (d0 = λ0/5) is reported. Each column of unit cells on the metasurface can be independently, temporally modulated, allowing space-time modulation along one axis. The time-modulation of adjacent columns is staggered to establish a desired modulation wavenumber. A homogenized model of the metasurface is proposed that includes the discretization of the spatial modulation. Compared to the continuous spatial modulation commonly assumed in earlier works, the discretized modulation allows new phenomena such as subharmonic mixing. Specifically, when the reflection phase is a sawtooth function in time, subharmonic frequency translation can be achieved without additional filtering and mixing circuitry. Measurement results validating the theoretical findings are presented at 10 GHz.","PeriodicalId":443426,"journal":{"name":"2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium)","volume":"27 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123779954","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
Antenna-Generic Multi-Mode Channels 天线通用多模信道
2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2020-07-05 DOI: 10.23919/USNC/URSI49741.2020.9321654
Y. Miao
{"title":"Antenna-Generic Multi-Mode Channels","authors":"Y. Miao","doi":"10.23919/USNC/URSI49741.2020.9321654","DOIUrl":"https://doi.org/10.23919/USNC/URSI49741.2020.9321654","url":null,"abstract":"This paper explains what is antenna-generic multi-mode channel, why we need it and how to obtain it. This paper is summarized from our measurement-based studies where we establish an analytical model and analyze the statistical behaviors of multi-mode channels in spherical vector wave (SVW) domain. The multi-mode channels represent radio wave propagation in the form of SVW mode coupling between link ends. The multi-mode channels do not rely on particular realizations of antennas at link ends, since any transmitting, receiving, and scattering fields associated with an antenna can be modeled as a weighted sum of SVW modes where different antennas have different complex-valued mode weights. The multi-mode channel can be converted from plane wave channel model parameters that we always extract from measurable channel transfer functions, and can also be measured directly with dedicated array design at link ends. The multi-mode channels can be used directly to compute the spatial degree-of-freedom which poses an upper-limit of the antenna channels when specific antennas are deployed, as well as the intrinsic channel capacity that depends on the propagation condition and antenna’s electric size (only). The multi-mode channel behaviors in an urban microcellular scenario have been investigated as to power imbalance, small-scale fading, auto- and cross-correlations. These behaviors provide invaluable insights into the design of antenna systems tailored to a specific propagation environment. Antenna systems at link ends should be devised such that the multi-mode channels with higher power, larger coherent distance and smaller cross-correlation be excited to fully exploit the degree of freedom of propagation channel.","PeriodicalId":443426,"journal":{"name":"2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium)","volume":"398 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121316036","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
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