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2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO)最新文献

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Design of Dual Polarized Retrodirective Metasurfaces 双极化反向元曲面的设计
2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO) Pub Date : 2018-10-01 DOI: 10.23919/RADIO.2018.8572395
Mohammed Kalaagi, D. Seetharamdoo
{"title":"Design of Dual Polarized Retrodirective Metasurfaces","authors":"Mohammed Kalaagi, D. Seetharamdoo","doi":"10.23919/RADIO.2018.8572395","DOIUrl":"https://doi.org/10.23919/RADIO.2018.8572395","url":null,"abstract":"In this paper, we introduce the design of retrodirective metasurfaces following the generalized phase law of reflection for dual polarizations TM and TE at a given incident angle at 14.7GHz. Two different unit cells (patch and cross) structures have been proposed in the design approach having two and three degrees of freedom respectively. The periodicity of the super-cell design has been given at $mathbf{5.76}lambda$ in order to redirect an incoming wave back in the same direction of incidence at 5°. To highlight on the applicative potential of metasurfaces for radar cross section enhancement at oblique incident angles, the monostatic RCS for a cross structured metasurface has been calculated showing a high level of retrodirectivity at the desired angle for TM and TE polarizations.","PeriodicalId":365518,"journal":{"name":"2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128125095","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
ANN Based Spectrum Sensing Technique for Cognitive Radio Applications 基于神经网络的认知无线电频谱感知技术
2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO) Pub Date : 2018-10-01 DOI: 10.23919/RADIO.2018.8572422
S. Pattanayak, P. Venkateswaran, R. Nandi
{"title":"ANN Based Spectrum Sensing Technique for Cognitive Radio Applications","authors":"S. Pattanayak, P. Venkateswaran, R. Nandi","doi":"10.23919/RADIO.2018.8572422","DOIUrl":"https://doi.org/10.23919/RADIO.2018.8572422","url":null,"abstract":"An ANN based spectrum sensing technique for audio FM and the wireless microphone signals in TV band is proposed. The artificial neural network (ANN) model trained with the autocorrelation peaks of the signal in channel identifies it as a white space or a primary signal. The performance of this technique is efficient in terms of false alarm rate and probability of detection; the proposed method presents less mathematical complexity as compared to other recent spectrum sensing techniques. Simulation results are presented.","PeriodicalId":365518,"journal":{"name":"2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132737776","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
Computer Aided Design and Model of a Car Tire Pressure Module Antenna 汽车胎压模块天线的计算机辅助设计与建模
2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO) Pub Date : 2018-10-01 DOI: 10.23919/RADIO.2018.8572397
L. Dolga, H. Filipescu, C. Moldovan, F. Alexa, M. Frigura-Iliasa
{"title":"Computer Aided Design and Model of a Car Tire Pressure Module Antenna","authors":"L. Dolga, H. Filipescu, C. Moldovan, F. Alexa, M. Frigura-Iliasa","doi":"10.23919/RADIO.2018.8572397","DOIUrl":"https://doi.org/10.23919/RADIO.2018.8572397","url":null,"abstract":"This paper will briefly present some simulations about a small antenna, part of a TiS (Tire Info System) used to constantly measure pressure inside that car wheel, and to send data to a Central Unit. We will analyze the behavior of this antenna, mounted alone, on different positions inside the tire, ignoring the metallic rim or the metallic tire reinforcement, as impedance and efficiency.","PeriodicalId":365518,"journal":{"name":"2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134305489","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
Studying Microwave-Photonic Frequency Up-Conversion for Telecom and Measurement Equipment 电信和测量设备微波-光子变频研究
2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO) Pub Date : 2018-10-01 DOI: 10.23919/RADIO.2018.8572474
D. Fofanov, T. Bakhvalova, A. Alyoshin, M. Belkin, A. Sigov
{"title":"Studying Microwave-Photonic Frequency Up-Conversion for Telecom and Measurement Equipment","authors":"D. Fofanov, T. Bakhvalova, A. Alyoshin, M. Belkin, A. Sigov","doi":"10.23919/RADIO.2018.8572474","DOIUrl":"https://doi.org/10.23919/RADIO.2018.8572474","url":null,"abstract":"An ultra-wideband frequency converter scheme for microwave and millimeter-wave signal generation based on optical RF recirculating loop and microwave-photonics technique, is proposed and demonstrated. The scheme consists of standard, commercially available elements such as dual parallel Mach-Zehnder modulator, optical filter and wideband photodiode and does not require high frequency RF components. Recirculating loop acts as a frequency comb generator and allows to obtain multiple local oscillator signals at frequencies that significantly higher than the reference used. Signals of frequencies in mm-wave band are demonstrated experimentally with spectrum that is free of spurious products. The converter proposed could be used as an alternative solution to microwave mixers in telecom and measurement equipment.","PeriodicalId":365518,"journal":{"name":"2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125502965","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
Nondestructive Control of Fruit Quality Using Microwaves - Modeling and Experiments with Apples 微波无损控制果实品质——苹果模型与实验
2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO) Pub Date : 2018-10-01 DOI: 10.23919/RADIO.2018.8572446
Hawraa Jawad, J. Lantéri, C. Migliaccio, C. Pichot, I. Platt, A. Tan, K. Eccleston, I. Woodhead
{"title":"Nondestructive Control of Fruit Quality Using Microwaves - Modeling and Experiments with Apples","authors":"Hawraa Jawad, J. Lantéri, C. Migliaccio, C. Pichot, I. Platt, A. Tan, K. Eccleston, I. Woodhead","doi":"10.23919/RADIO.2018.8572446","DOIUrl":"https://doi.org/10.23919/RADIO.2018.8572446","url":null,"abstract":"The influence on the complex permittivity of cultivars (varieties), maturation, quality indices (e.g. soluble solids content), moisture or temperature can be used for sensing and monitoring for developing new generation of sensors for a nondestructive control of agricultural products for improving quality. The main application concerns here apples. The study includes modeling, simulations and measurements of the scattered field in far and near-field zones (excluding the interactive zone) regions of apples to check the feasibility of monitoring apple growth, maturation, quality indices and defects.","PeriodicalId":365518,"journal":{"name":"2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131483436","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
Reciprocal Optimized Surface Impedance Multiple Angle Retro-Reflective Metasurfaces 互反优化表面阻抗多角度反反射超表面
2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO) Pub Date : 2018-10-01 DOI: 10.23919/RADIO.2018.8572447
Mohammed Kalaagi, D. Seetharamdoo
{"title":"Reciprocal Optimized Surface Impedance Multiple Angle Retro-Reflective Metasurfaces","authors":"Mohammed Kalaagi, D. Seetharamdoo","doi":"10.23919/RADIO.2018.8572447","DOIUrl":"https://doi.org/10.23919/RADIO.2018.8572447","url":null,"abstract":"In this paper, we introduce a reciprocal multiple angle retro-reflective metasurface following the general principles of the surface impedance concept and numerical optimization of the super-cell design. The aim is to obtain retroreflection simultaneously at the desired direction and open channels of the designed metasurface. With an increase of periodicity of the super-cell design, the number of open channels increases according to Floquet-BLoch analysis. With an increase up to $mathbf{2}lambda$ and higher the system is said to become very lossy and loses its reciprocity in the symmetrical directions. In this particular case, a new design super-cell approach for a reciprocal retrodirective metasurface is studied for a periodicity of $mathbf{2.9}lambda$ at a 10° incident angle. For the validation of the analysis and performance of the designed metasurface, the monostatic RCS is given to determine the performance of the metasurface for retro-reflection. The results show significant levels at the desired angle (10°) and open channels (−32° and −44°), as well as a recovery of the loss in the symmetrical directions (−10°, 32° and 44°) using the reciprocal metasurface design approach.","PeriodicalId":365518,"journal":{"name":"2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO)","volume":"192 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116424681","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
Circular SRR Shaped UWB Antenna with WiMAX Band Notch Characteristics 具有WiMAX带陷波特性的圆形SRR形超宽带天线
2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO) Pub Date : 2018-10-01 DOI: 10.23919/RADIO.2018.8572343
Ankam Laxman Kumar, A. Ranjan, Monika Chauhan, V. Killamsetty, Biswajeet Mukherjee
{"title":"Circular SRR Shaped UWB Antenna with WiMAX Band Notch Characteristics","authors":"Ankam Laxman Kumar, A. Ranjan, Monika Chauhan, V. Killamsetty, Biswajeet Mukherjee","doi":"10.23919/RADIO.2018.8572343","DOIUrl":"https://doi.org/10.23919/RADIO.2018.8572343","url":null,"abstract":"A Compact ultra-wideband microstrip patch antenna with single notch characteristics is proposed in this paper. The proposed antenna comprises of a split ring resonator (SRR) and an open loop rectangular resonator (OLRR). The split ring resonator in this paper plays a dual role, it acts as a radiating patch and also as a band rejecter to eliminate the entire worldwide interoperability for microwave access (WiMAX) covers 3.3 GHz – 3.6 GHz band. OLRR is used for the suppression of the harmonic frequency band notch. The compact size of the antenna is $mathbf{36}times mathbf{30} mathbf{mm}^{2}$.","PeriodicalId":365518,"journal":{"name":"2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115064036","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
Kerker Effect with Hybridized Radiofrequency Resonators 杂化射频谐振器的Kerker效应
2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO) Pub Date : 2018-10-01 DOI: 10.23919/RADIO.2018.8572359
M. Dubois, R. Abdeddaim, S. Enoch
{"title":"Kerker Effect with Hybridized Radiofrequency Resonators","authors":"M. Dubois, R. Abdeddaim, S. Enoch","doi":"10.23919/RADIO.2018.8572359","DOIUrl":"https://doi.org/10.23919/RADIO.2018.8572359","url":null,"abstract":"A set of hybridized resonators is used to achieve efficient and tunable far field scattering control in the radiofrequency range. We demonstrate theoretically a full overlap between the electric dipolar and magnetic dipolar resonances of the meta atom. This interaction is precisely tuned to reach the so-called Kerker scattering conditions when illuminated by a plane wave. Future work will tackle the illumination from a near field distributed source as the final goal of this study is to insert this element to control the radiofrequency electromagnetic field within a MRI birdcage coil.","PeriodicalId":365518,"journal":{"name":"2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121150169","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 Tri-Band SRR Loaded Half Slot Antenna with Wideband Properties 一种具有宽带特性的三频带SRR负载半槽天线
2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO) Pub Date : 2018-10-01 DOI: 10.23919/RADIO.2018.8572452
P. Paul, K. Kandasamy, M. Sharawi
{"title":"A Tri-Band SRR Loaded Half Slot Antenna with Wideband Properties","authors":"P. Paul, K. Kandasamy, M. Sharawi","doi":"10.23919/RADIO.2018.8572452","DOIUrl":"https://doi.org/10.23919/RADIO.2018.8572452","url":null,"abstract":"In this paper, a compact tri-band split ring resonator (SRR) loaded slot antenna is proposed which offers independent frequency tunability for operation at WLAN and WiMAX bands. The microstrip fed slot antenna is loaded with a modified SRR to obtain the triband resonance. The compactness is achieved by using an open slot antenna. The slot is designed to resonate at 2.4 GHz, which combines with the resonance obtained due to a fictitious short circuit produced at a certain point along the slot. This leads to the wideband property at the first band. The second and third resonances are obtained at 7.5 GHz and 9.3 GHz. The resonances can be independently controlled by changing the slot and SRR dimensions.","PeriodicalId":365518,"journal":{"name":"2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121188236","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
Analysis of Ionospheric Zonal Irregularity Velocity Under Low Latitude During Solar Maxima 24 太阳极大期24低纬度下电离层纬向不规则速度分析
2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO) Pub Date : 2018-10-01 DOI: 10.23919/RADIO.2018.8572306
Matheus Henrique Monteiro de Oliveira, Jonas de Sousa dos Santos, Alison de Oliveira Moraes, M. Abdu, César Buchile Abud De Oliveira, L. Salles
{"title":"Analysis of Ionospheric Zonal Irregularity Velocity Under Low Latitude During Solar Maxima 24","authors":"Matheus Henrique Monteiro de Oliveira, Jonas de Sousa dos Santos, Alison de Oliveira Moraes, M. Abdu, César Buchile Abud De Oliveira, L. Salles","doi":"10.23919/RADIO.2018.8572306","DOIUrl":"https://doi.org/10.23919/RADIO.2018.8572306","url":null,"abstract":"Ionospheric scintillation have their origin in plasma irregularities that cause rapid fluctuations of phase and amplitude in transmitted signals. The applied methodology uses data provided by GPS Ephemeris and scintillation monitors as input to estimate plasma bubbles drift velocities. Results for a low-latitude station in Brazil are consistent with bibliography and indicate the reliability of the method and its usage as a tool to analyze large data to select samples for deeper scintillation studies.","PeriodicalId":365518,"journal":{"name":"2018 IEEE Radio and Antenna Days of the Indian Ocean (RADIO)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124630128","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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