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2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science最新文献

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Spiral Resonators Array in inductive Wireless Power Transfer Applications: an Equivalent Lumped Circuit Retrieval Method 感应无线电力传输中的螺旋谐振器阵列:一种等效集总电路检索方法
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9232334
D. Brizi, N. Fontana, S. Barmada, A. Monorchio
{"title":"Spiral Resonators Array in inductive Wireless Power Transfer Applications: an Equivalent Lumped Circuit Retrieval Method","authors":"D. Brizi, N. Fontana, S. Barmada, A. Monorchio","doi":"10.23919/URSIGASS49373.2020.9232334","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9232334","url":null,"abstract":"In this paper we introduce a retrieval method to derive an equivalent lumped circuital model for spiral resonators arrays in inductive Wireless Power Transfer applications. We first introduce the theoretical concepts at the basis of the array description through an equivalent RLC circuit. Then, we develop a numerical test-case to evaluate the performance of the proposed method, constituted by resonant driving and receiving coils with an interposed spiral resonators array; finally, we compare full-wave simulations and analytical estimations. The observed excellent agreement between full-wave and analytically-retrieved impedance parameters demonstrates the efficiency of our procedure, encouraging further analysis.","PeriodicalId":438881,"journal":{"name":"2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124830408","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
Improved COST 231-WI Model for Irregular Built-Up Areas 不规则建成区改进的COST - 231-WI模型
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9232010
L. Schirru, M. B. Lodi, A. Fanti, G. Mazzarella
{"title":"Improved COST 231-WI Model for Irregular Built-Up Areas","authors":"L. Schirru, M. B. Lodi, A. Fanti, G. Mazzarella","doi":"10.23919/URSIGASS49373.2020.9232010","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9232010","url":null,"abstract":"The estimation of the field levels generated by radio base stations set in urban environment is still urgent need and a relevant issue for the compliance to national regulations and for propagation concerns. This work copes with the estimation of electromagnetic field generated by UHF base stations in peculiar urban scenarios. To account for irregular geometries and to deal with the propagation in hilly town, the COST 231-Walfisch-Ikegami model is modified and rephrased in order to evaluate the path loss at distances greater than 20 meters from the base station in such peculiar urban environments. Measurements were carried out in the small urban and irregular built-up areas of Dorgali (NU), Cala Gonone (NU) and Lunamatrona (CA), Italy, to validate the model.","PeriodicalId":438881,"journal":{"name":"2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129676312","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
A Pragmatic Approach to Electronically Rewritable ‘RF-Barcodes’ Based on Non-Volatile CBRAM/MIM Switching Technology 基于非易失性CBRAM/MIM交换技术的电子可重写“射频条形码”的实用方法
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9232256
Jayakrishnan M.P, A. Vena, B. Sorli, E. Perret
{"title":"A Pragmatic Approach to Electronically Rewritable ‘RF-Barcodes’ Based on Non-Volatile CBRAM/MIM Switching Technology","authors":"Jayakrishnan M.P, A. Vena, B. Sorli, E. Perret","doi":"10.23919/URSIGASS49373.2020.9232256","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9232256","url":null,"abstract":"In this article we present the concept of a practical approach to realization of a fully passive electronically rewritable chipless RFID tag. Integrated non-volatile and solid state Conductive Bridging Random Access Memory (CBRAM) based Metal-Insulator-Metal (MIM) switches are used to realize the rewritable functionality. A solution to the primary challenge of requirement of obtaining very low ON states resistances $(sim lt 10 Omega)$ in case of an RF switch, for efficient operating conditions is addressed in this paper. Here we propose a reconfigurable resonator design with a ground plane, which could operate efficiently for higher ON state resistances $(sim gt 100 Omega)$ of a CBRAM/MIM RF switch. A technique of data encoding in electronically rewritable dipole resonators, by effectively modulating the impedance states of integrated CBRAM/MIM switches is presented herewith in detail. This example is presented through a model design of a 3bit rewritable chipless RFID tag.","PeriodicalId":438881,"journal":{"name":"2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129690717","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
Experimental millimiter-wave 3D woodpile EBG waveguide manufactured by layer-by-layer dicing of silicon wafers 采用硅片逐层切割技术制备的实验性毫米波三维木桩EBG波导
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9232312
G. Torrisi, G. Mauro, A. Locatelli, L. Celona, C. de Angelis, G. Sorbello
{"title":"Experimental millimiter-wave 3D woodpile EBG waveguide manufactured by layer-by-layer dicing of silicon wafers","authors":"G. Torrisi, G. Mauro, A. Locatelli, L. Celona, C. de Angelis, G. Sorbello","doi":"10.23919/URSIGASS49373.2020.9232312","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9232312","url":null,"abstract":"In this paper we report on the design, fabrication and measurement of a silicon woodpile waveguide operating in the millimeter-wave band. The 3D Electromagnetic Band Gap (EBG) woodpile has been created by precision dicing saws of silicon wafers. An appropriate air defect has been inserted at the structure central coordinates and optimized in size and shape in order to maximize the coupling between the TE10 mode of the standard rectangular Input/Output metallic waveguides and the TE10 - like mode of the EBG waveguide that propagates along the defect. The manufactured device, that includes custom metal-dielectric I/O transitions, exhibits an overall $vert S_{11}vert$ and $vert S_{12}vert$ scattering parameters of -32 dB and - 0.46 dB at the operating frequency of 96.6 GHz, which are in very good agreement with the simulated ones, obtained in Ansys HFSS.","PeriodicalId":438881,"journal":{"name":"2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129731949","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
Non-linear Mantle Cloaks for Self-Configurable Power-Dependent Phased Arrays 用于自配置功率相关相控阵的非线性斗篷
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9232340
S. Vellucci, A. Monti, M. Barbuto, M. Salucci, G. Oliveri, A. Toscano, F. Bilotti
{"title":"Non-linear Mantle Cloaks for Self-Configurable Power-Dependent Phased Arrays","authors":"S. Vellucci, A. Monti, M. Barbuto, M. Salucci, G. Oliveri, A. Toscano, F. Bilotti","doi":"10.23919/URSIGASS49373.2020.9232340","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9232340","url":null,"abstract":"The use of non-linear electronic components is proposed in this contribution to further expand the potentialities of mantle cloaking for antennas. In particular, the possibility to design phased arrays featuring a radiation pattern that can be made self-sensitive to the level of received/transmitted power by the system will be demonstrated. Towards this end, a phased array exhibiting a directive pattern when operating for high-power signals while presenting an omnidirectional pattern for lowpower ones will be designed and numerically validated. This solution can be of particular interest for designing radar systems able to seamlessly/transparently switch between selectively scanning the environment when transmitting high power pulses, and omnidirectionally sensing the environment when handling low power scattered signals.","PeriodicalId":438881,"journal":{"name":"2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129603967","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: 8
Electromagnetic modelling of the SKA-LOW AAVS2 prototype SKA-LOW AAVS2原型机的电磁建模
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9232307
D. Davidson, P. Bolli, M. Bercigli, P. D. Ninni, J. Monari, F. Perini, M. Sokołowski, S. Tingay, D. Ung, G. Virone, M. Waterson, R. Wayth, F. Zerbi
{"title":"Electromagnetic modelling of the SKA-LOW AAVS2 prototype","authors":"D. Davidson, P. Bolli, M. Bercigli, P. D. Ninni, J. Monari, F. Perini, M. Sokołowski, S. Tingay, D. Ung, G. Virone, M. Waterson, R. Wayth, F. Zerbi","doi":"10.23919/URSIGASS49373.2020.9232307","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9232307","url":null,"abstract":"The computational electromagnetic modelling of a large radio telescope prototype array for the Square Kilometer Array is described. The numerical models, using the Method of Moments, are characterised by a very large number of unknowns, requiring the use of fast solution methods and high performance computing platforms. Good agreement has been obtained between results obtained on two different commercial codes. Results for both embedded element patterns and the station beam are shown. The use of the computed embedded element patterns for array calibration is briefly addressed.","PeriodicalId":438881,"journal":{"name":"2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127070544","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: 10
Frontend Signal Processing Design for a cryogenic PAF prototype of FAST FAST低温PAF原型机前端信号处理设计
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9232300
Xiaoming Chai, B. Liu, Yan Zhu
{"title":"Frontend Signal Processing Design for a cryogenic PAF prototype of FAST","authors":"Xiaoming Chai, B. Liu, Yan Zhu","doi":"10.23919/URSIGASS49373.2020.9232300","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9232300","url":null,"abstract":"For large reflector radio telescopes, cryogenic phased array feed (PAF) has the great potential on enhancing the telescope’s performance and thus PAF becomes one of the research frontiers in the field of radio astronomy. The Joint Laboratory for Radio Astronomy Technology (JLRAT) team has been studying on PAF theories and key technologies and developing a cryogenic prototype for the Five hundred meter Aperture Spherical Telescope (FAST). This paper is to present the current progress on the frontend signal processing devices including the signal processing framework design, the system integration and key components development.","PeriodicalId":438881,"journal":{"name":"2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science","volume":"225 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127200675","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 Compact and Lightweight Ultra-Wideband Interferometer for Direction Finding Applications 一种用于测向应用的小巧轻便的超宽带干涉仪
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9232181
L. Scorrano, A. Calcaterra, P. Bia, S. Maddio, G. Pelosi, M. Righini, S. Selleri
{"title":"A Compact and Lightweight Ultra-Wideband Interferometer for Direction Finding Applications","authors":"L. Scorrano, A. Calcaterra, P. Bia, S. Maddio, G. Pelosi, M. Righini, S. Selleri","doi":"10.23919/URSIGASS49373.2020.9232181","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9232181","url":null,"abstract":"In this work it is proposed the design of a couple of UWB two-arm sinuous antennas working in 2-18 GHz (Antenna A) and 6-18 GHz (Antenna B) frequency bands assembled in a ultra-wideband array for direction finding applications. Both antennas work with a slant 45° polarization ensuring good matching impedance and stable radiation characteristics in the considered frequency bands. The design has been optimized in order to reduce the geometrical dimensions. The proposed antennas have been manufactured and tested in order to validate the simulation performances. Finally the evaluation of accuracy performances in estimating the direction of arrival of an incoming wave-front is presented.","PeriodicalId":438881,"journal":{"name":"2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127259855","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: 2
STDCC radar at 24 GHz: first measurement trials 24ghz STDCC雷达:首次测量试验
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9232154
A. Sardo, J. Reis, Luís Duarte, N. Leonor, C. Ribeiro, R. Caldeirinha
{"title":"STDCC radar at 24 GHz: first measurement trials","authors":"A. Sardo, J. Reis, Luís Duarte, N. Leonor, C. Ribeiro, R. Caldeirinha","doi":"10.23919/URSIGASS49373.2020.9232154","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9232154","url":null,"abstract":"This paper presents the first measurement trials for performance assessment of a real-time and high resolution monostatic radar operating at 24 GHz. The proposed real-time radar, which operates based on the sliding correlation of pseudo-noise (PN) sequences, provides a high time resolution better than 4 ns, useful for moving target identification (MTI) in the presence of highly dense clutter, under harsh environments and severe weather conditions (fog, snow and fire smoke or plume). The STDCC radar target detection capability is demonstrated in this paper, by measuring and identifying the radar data for 4 distinct scenarios, composed of multiple targets (up to 8), inside an anechoic chamber, demonstrating the potential of the proposed radar architecture.","PeriodicalId":438881,"journal":{"name":"2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127233255","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
The polarizability of an alternative sequence of isotropic and radially anisotropic multilayer sphere 各向同性和径向各向异性多层球体交替序列的极化率
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9231992
S. Batool, M. Nisar, F. Mangini, F. Frezza
{"title":"The polarizability of an alternative sequence of isotropic and radially anisotropic multilayer sphere","authors":"S. Batool, M. Nisar, F. Mangini, F. Frezza","doi":"10.23919/URSIGASS49373.2020.9231992","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9231992","url":null,"abstract":"In this article, the polarizability of a multilayer sphere that consists of an alternative sequence of layers of isotropic and spherically radially anisotropic (SRA) material has been investigated. Within each SRA layer, components of the tensor permittivity have different values in radial and tangential directions. The mathematical treatment for extracting electrostatic polarizability has been formulated in terms of scattered potentials. Obtained results have been used to describe the behavior of a whole sphere as a function of number of the isotropic and SRA alternating layers using a numerical approach.","PeriodicalId":438881,"journal":{"name":"2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130022753","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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