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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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Wearable Soft Grid Array Antenna for S-band 5G Communication s波段5G通信可穿戴软网格阵列天线
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9232249
J. Hughes, C. Occhiuzzi, J. Batchelor, G. Marrocco
{"title":"Wearable Soft Grid Array Antenna for S-band 5G Communication","authors":"J. Hughes, C. Occhiuzzi, J. Batchelor, G. Marrocco","doi":"10.23919/URSIGASS49373.2020.9232249","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9232249","url":null,"abstract":"Potential convergence of wearable and epidermal antennas for battery-less communication with the emerging 5G framework, may boost the ultrafast and delay-free monitoring of biophysical parameters. 3.6 GHz epidermal antennas have already been demonstrated to possibly provide the same performance of a conventional UHF RFID link but with much larger band. Even better performance can be achieved by using wearable grid-arrays that may increase the read distance up to 6m in battery-less mode while keeping the feeding and fabrication complexity low. Here, the optimal performance of on-skin grid-arrays are investigated and a first prototype is manufactured and tested onto a body phantom.","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":"129223006","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 and Experimental Validation of a Stochastic Diffractor for a Multiple Monopole Source Stirring Reverberation Chamber 多单极源搅拌混响室随机衍射仪的设计与实验验证
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9232226
A. De Leo, G. Gradoni, G. Cerri, P. Russo, V. M. Primiani
{"title":"Design and Experimental Validation of a Stochastic Diffractor for a Multiple Monopole Source Stirring Reverberation Chamber","authors":"A. De Leo, G. Gradoni, G. Cerri, P. Russo, V. M. Primiani","doi":"10.23919/URSIGASS49373.2020.9232226","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9232226","url":null,"abstract":"This paper deals with the use of stochastic diffractors in a reverberation chamber to improve the stirring of the electromagnetic field. In particular, the stirring technique is achieved by varying the feeding of an array of monopole antennas mounted on the chamber’s walls.","PeriodicalId":438881,"journal":{"name":"2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science","volume":"5 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":"129238324","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
Investigation of Electromagnetic Field Coupling to a Transmission Line Terminated with Non-Vertical Risers 端接非垂直立管传输线的电磁场耦合研究
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9232394
Jun Guo, M. Rubinstein, V. Cooray, F. Rachidi
{"title":"Investigation of Electromagnetic Field Coupling to a Transmission Line Terminated with Non-Vertical Risers","authors":"Jun Guo, M. Rubinstein, V. Cooray, F. Rachidi","doi":"10.23919/URSIGASS49373.2020.9232394","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9232394","url":null,"abstract":"Recently, a simple and efficient method was proposed to take into account non-vertical risers at the end of transmission lines through an equivalent partial inductance. This paper evaluates the frequency above which the inductance needs to be taken into account. In addition, the proposed method is validated in the time domain.","PeriodicalId":438881,"journal":{"name":"2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science","volume":"129 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":"124545555","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 Indoor Environment in the 60 GHz band 60ghz频段室内环境特性研究
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9232213
Amar Al-jzari, J. Towers, S. Salous
{"title":"Characterization of Indoor Environment in the 60 GHz band","authors":"Amar Al-jzari, J. Towers, S. Salous","doi":"10.23919/URSIGASS49373.2020.9232213","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9232213","url":null,"abstract":"The millimeter-wave (mmWave) band will be used for the fifth generation (5G) wireless communication systems. In this paper, results of wideband channel measurements conducted at Durham University campus in various indoor environments are presented. The measurements were performed with 6 GHz bandwidth (BW) in the V-band using a multiband chirp-based channel sounder. The multipath component parameters (MPCs) including power delay profile (PDP), power angle profile (PAP), root mean square (RMS) delay spread (DS), and angular spread (AS) have been estimated and compared in order to characterize the measured channel. The results will be valuable for future mmWave communication systems design in indoor environments.","PeriodicalId":438881,"journal":{"name":"2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science","volume":"49 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":"130290183","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
Distribution of sulfur dioxide over Indian subcontinent: Remote sensing observations and model reanalysis 二氧化硫在印度次大陆的分布:遥感观测和模式再分析
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9232415
L. Chutia, N. Ojha, I. Girach, Binita Pathak, L. Sahu, P. Bhuyan
{"title":"Distribution of sulfur dioxide over Indian subcontinent: Remote sensing observations and model reanalysis","authors":"L. Chutia, N. Ojha, I. Girach, Binita Pathak, L. Sahu, P. Bhuyan","doi":"10.23919/URSIGASS49373.2020.9232415","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9232415","url":null,"abstract":"Sulfur dioxide (SO2) is a short-lived reactive trace gas, which plays vital roles in air quality, tropospheric chemistry and climate. Rapid changes in the technologies and expansion of energy sector is anticipated to have influenced the distribution of SO2 across the Indian subcontinent, however continuous in situ observations are scarce. In this direction, we investigate the spatio-temporal distribution of SO2 over the Indian region combining the remote sensing observations from space (OMI), in situ measurements (CPCB), and results from the global models (MERRA-2 and CAMS) for 2005-2015 period. The comparison of MERRA-2 results with surface SO2 observations show model's ability to reproduce the general aspects of SO2 distribution over this region. Analysis of the long-term MERRA-2 and CAMS simulations reveal an enhancement in the SO2 levels, more pronounced over the industrial regions in the north, east and central India at rates in range of 0.1-0.3 ppbv $mathrm{y}mathrm{r}^{-1}$ during 2005-2015 period. This concord well with the trends based on satellite-based observations and emission inventories over this region. These changes in SO2 are further found to impact the regional distribution of the sulphate aerosols significantly.We estimated higher efficiency of sulphate formation during monsoon (0.30) than that during winter (0.15). This study highlights a need to conduct in situ observations of SO2 over a network of stations especially in the identified regions of stronger SO2 enhancements to understand the impacts on the regional air quality and climate.","PeriodicalId":438881,"journal":{"name":"2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science","volume":"15 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":"130523293","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
Low Mutual Coupling Dual-port Dual-band MIMO Antenna Array for Mobile Terminal 面向移动终端的低互耦双端口双频MIMO天线阵列
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9231995
M. Mishra, R. S. Kshetrimayum, S. Chaudhuri
{"title":"Low Mutual Coupling Dual-port Dual-band MIMO Antenna Array for Mobile Terminal","authors":"M. Mishra, R. S. Kshetrimayum, S. Chaudhuri","doi":"10.23919/URSIGASS49373.2020.9231995","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9231995","url":null,"abstract":"A dual-port dual-band multiple-input-multiple-output (MIMO) antenna array comprises of two printed circular monopole antennas is presented. Based on simulated data, the -10 dB impedance bandwidth of the antenna is noted from 2.3 GHz to 2.8 GHz and 3.37 GHz to 3.72 GHz. The isolation between the antenna elements is enhanced by connecting antennas through a microstrip neutralisation line along with a stub in the ground plane. Mutual coupling is found to be below -15 dB with an inter-element spacing of 0.092 times the free-space wavelength at 2.3 GHz. The maximum gain of the antenna is noted to be 3.66 dBi with an envelope correlation coefficient ≤ 0.06211 in its entire bandwidth.","PeriodicalId":438881,"journal":{"name":"2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science","volume":"23 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":"126669429","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
Throughput Analysis of a Energy Harvesting Cooperative Cognitive Radio Network 能量收集协同认知无线电网络的吞吐量分析
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9232411
Gopal Chandra Das, Seemanti Saha, A. Bhowmick, S. Maity
{"title":"Throughput Analysis of a Energy Harvesting Cooperative Cognitive Radio Network","authors":"Gopal Chandra Das, Seemanti Saha, A. Bhowmick, S. Maity","doi":"10.23919/URSIGASS49373.2020.9232411","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9232411","url":null,"abstract":"In this paper, energy harvesting cooperative cognitive radio (CR) network is studied under a collision constraint of PU. Optimal numbers of CRs cooperate in transmission of primary user (PU), if it remains present in the given channel; otherwise all the CRs transmit their own data in time division scheme. The harvested energy at CR is divided into two parts, one part is allocated for cooperation in PU transmission and the other part is used for its own transmission. The allocation of energy is based on the targeted CR throughput. Influence of an energy allocation parameter and sensing time on throughput performance is studied under the random behaviour of PU.","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":"129179916","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
Air-Filled Substrate Integrated Waveguide (AFSIW) Filter with Asymmetric Frequency Response 非对称频率响应的充气基板集成波导滤波器
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9232236
T. Martin, A. Ghiotto, T. Vuong
{"title":"Air-Filled Substrate Integrated Waveguide (AFSIW) Filter with Asymmetric Frequency Response","authors":"T. Martin, A. Ghiotto, T. Vuong","doi":"10.23919/URSIGASS49373.2020.9232236","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9232236","url":null,"abstract":"A filter with asymmetric frequency response based on air-filled substrate integrated waveguide (AFSIW) is introduced. The proposed filter is low-loss, compact, and allows the introduction of a transmission zero in the upper-side. The transmission zero is implemented using the multilayer feature of the AFSIW technological platform as the secondary path of the signal is located in the bottom substrate of the structure, while the primary path is located in the inner substrate. Furthermore, the robustness of the structure against printed circuit board (PCB) standard processes highlights the high interest of the structure. For demonstration purposes, a third-order AFSIW filter with an asymmetric frequency response operating at 21 GHz with a fractional bandwidth of 1.53% is fabricated and measured. The measured results are in good accordance with the simulation results in and out band results. The fabricated prototype exhibits measured insertion loss of 0.66 dB with an unloaded Q-factor of 1429, which is excellent for a planar structure.","PeriodicalId":438881,"journal":{"name":"2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science","volume":"10 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":"124221400","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
Metamaterial Inspired RF Planar Sensor for Dielectric Characterization and Identification of Adulteration in Vegetable Oils 超材料激发射频平面传感器在植物油中介电特性及掺假鉴定中的应用
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9232342
Athira Raveendran, G. M, S. Raman
{"title":"Metamaterial Inspired RF Planar Sensor for Dielectric Characterization and Identification of Adulteration in Vegetable Oils","authors":"Athira Raveendran, G. M, S. Raman","doi":"10.23919/URSIGASS49373.2020.9232342","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9232342","url":null,"abstract":"A low cost RF planar sensor for dielectric characterization and detection of adulteration in vegetable oils is proposed in this paper. The resonance characteristics of the metamaterial inspired sensor vary with the change in electrical properties of the liquid sample in contact. The sensor is designed to operate in 2.4 GHz ISM band and fabricated on a FR4 substrate of thickness 1.6 mm. A numerical model based on finite element method is developed to extract the relative permittivity of test samples. The sensor is experimentally validated by testing different vegetable oils and comparing the measurement results with values available in literature. As a proof of concept, the prototype is tested for adulteration in vegetable oils with different concentration of adulterant oil and their presence has successfully identified. The compactness, ease of fabrication and low manufacturing cost allow the planar sensor to be considered as promising alternative for dielectric characterization and detection of adulteration in vegetable oils. Moreover, the single port topology of the sensor allows direct submersion in the liquid samples and it also distinguishes materials of close permittivity.","PeriodicalId":438881,"journal":{"name":"2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science","volume":"636 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":"123347441","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
Preliminary comparison up to 50 GHz between in-vivo, in-loco, and ex-vivo measurements for the dielectric permittivity of tissues with high water content 对高含水量组织的介电常数在体内、体内和离体测量之间高达50 GHz的初步比较
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science Pub Date : 2020-08-01 DOI: 10.23919/URSIGASS49373.2020.9231981
S. Di Meo, M. Pasian
{"title":"Preliminary comparison up to 50 GHz between in-vivo, in-loco, and ex-vivo measurements for the dielectric permittivity of tissues with high water content","authors":"S. Di Meo, M. Pasian","doi":"10.23919/URSIGASS49373.2020.9231981","DOIUrl":"https://doi.org/10.23919/URSIGASS49373.2020.9231981","url":null,"abstract":"In this paper, preliminary results about the comparison between in-vivo, in-loco and ex-vivo dielectric properties of a limited colony of mice in the wide frequency range from 500 MHz to 50 GHz are shown. This is instrumental to the development of several applications that make use of microwaves and millimeter waves, including systems for breast cancer imaging.","PeriodicalId":438881,"journal":{"name":"2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science","volume":"49 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":"123474788","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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