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Wideband omnidirectinal perforated minkowski fractal dielectric resonator antenna 宽带全向多孔闵可夫斯基分形介质谐振器天线
2015 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2015-12-01 DOI: 10.1109/AEMC.2015.7509223
Abhishek Sharma, A. Biswas
{"title":"Wideband omnidirectinal perforated minkowski fractal dielectric resonator antenna","authors":"Abhishek Sharma, A. Biswas","doi":"10.1109/AEMC.2015.7509223","DOIUrl":"https://doi.org/10.1109/AEMC.2015.7509223","url":null,"abstract":"A wideband perforated minkowski fractal dielectric resonator antenna is proposed. The antenna is centrally fed by a probe and operating in quasi TM01δ mode which is similar to the TM01δ mode of cylindrical dielectric resonator antenna. An impedance bandwidth (S11 <; -10 dB) of 2.48 GHz (47%) is obtained and the peak gain varies from 3.6 dBi-4.05 dBi in the matching band with maximum at 5.5 GHz. The antenna radiates like electric monopole, resulting in omnidirectional radiation pattern. The radiation pattern is stable throughout the matching band and cross polarized levels are below -40 dB and -20 dB in xz- and xy-plane, respectively.","PeriodicalId":168839,"journal":{"name":"2015 IEEE Applied Electromagnetics Conference (AEMC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125317183","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: 4
Miniaturized meander PCB antenna for 433MHz 433MHz的微型化弯曲PCB天线
2015 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2015-12-01 DOI: 10.1109/AEMC.2015.7509138
N. Tripathi
{"title":"Miniaturized meander PCB antenna for 433MHz","authors":"N. Tripathi","doi":"10.1109/AEMC.2015.7509138","DOIUrl":"https://doi.org/10.1109/AEMC.2015.7509138","url":null,"abstract":"Wireless devices have become an important part of everyday life. Antennas are essential components in these wireless devices. In recent years, there has been an increased interest in operating at the ultra-high frequency (UHF) band. It is well known that the ISM 433, 433.050-434.790 MHz frequency bands [1] is widely used for low data rate applications, such as Wireless Sensor Network (WSN) and remote controls. This paper presents a miniaturized meander structure printed pcb antenna for ultra high frequency application. The proposed antenna of size 50mm×40mm, is designed to operate at frequency 433 MHz with 7 MHz bandwidth. The proposed antenna is designed on FR-4 substrate with a thickness of 1.6 mm. Good return loss and radiation pattern characteristic are obtained in frequency of interest. FEM based simulator Ansys HFSS is used for simulation.","PeriodicalId":168839,"journal":{"name":"2015 IEEE Applied Electromagnetics Conference (AEMC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129859827","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
Aperture coupled rectangular element Log periodic dielectric resonator antenna array for X band X波段孔径耦合矩形元件对数周期介质谐振器天线阵列
2015 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2015-12-01 DOI: 10.1109/AEMC.2015.7509195
S. Solomon, R. Kumari
{"title":"Aperture coupled rectangular element Log periodic dielectric resonator antenna array for X band","authors":"S. Solomon, R. Kumari","doi":"10.1109/AEMC.2015.7509195","DOIUrl":"https://doi.org/10.1109/AEMC.2015.7509195","url":null,"abstract":"The design of a wideband Log periodic dielectric resonator antenna array is investigated for X band application. Aperture coupled feeding is used in this design to minimize the losses. The proposed array contains seven rectangular dielectric elements and results a wide bandwidth of about 34% covering the frequency range 9.23 GHz to 13.23 GHz with a peak gain of 9.06 dBi. The parametric study of bandwidths for different number of elements has also been presented here.","PeriodicalId":168839,"journal":{"name":"2015 IEEE Applied Electromagnetics Conference (AEMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130328708","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
X-band backscattering analysis of soil moisture using ground-based scatterometer 基于地基散射计的土壤水分x波段后向散射分析
2015 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2015-12-01 DOI: 10.1109/AEMC.2015.7509208
Bikramjit Goswami, Manoranjan Kalita
{"title":"X-band backscattering analysis of soil moisture using ground-based scatterometer","authors":"Bikramjit Goswami, Manoranjan Kalita","doi":"10.1109/AEMC.2015.7509208","DOIUrl":"https://doi.org/10.1109/AEMC.2015.7509208","url":null,"abstract":"This paper investigates change in backscattering response due to variation of soil moisture, in the X-band, with the purpose of providing a reliable method for soil moisture monitoring using satellite X-band synthetic aperture radar (SAR) data. The study is based on the ground-based scatterometer experiment conducted on the fields at the remote sensing test site of International Centre for Radio Science (ICRS), Jodhpur, India. During the month of July 2013, a number of experiments were carried out and a large amount of in situ data could be collected at a range of incident angles. Synchronously, the gravimetric soil moisture values were determined for the sandy soil of the test site. This paper describes these experiments and highlights the backscattering response characteristics at X-band observed in different incident angles due to variation of soil moisture.","PeriodicalId":168839,"journal":{"name":"2015 IEEE Applied Electromagnetics Conference (AEMC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124014571","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 an axially displaced ellipsoid reflector antenna for a 4.6m diameter ship-borne transportable terminal at S-band 4.6m直径船载移动式码头s波段轴向位移椭球反射天线设计
2015 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2015-12-01 DOI: 10.1109/AEMC.2015.7509121
B. P. Kumar, C. Kumar, V. S. Kumar, V. Srinivasan
{"title":"Design of an axially displaced ellipsoid reflector antenna for a 4.6m diameter ship-borne transportable terminal at S-band","authors":"B. P. Kumar, C. Kumar, V. S. Kumar, V. Srinivasan","doi":"10.1109/AEMC.2015.7509121","DOIUrl":"https://doi.org/10.1109/AEMC.2015.7509121","url":null,"abstract":"This paper presents a detailed study for realization of an optimized configuration of a 4.6 m diameter reflector antenna for ship-borne transportable terminal using axially displaced ellipsoid (ADE) configuration. Maximum gain achievable from the aperture coupled with system level parameters like G/T, accommodation of a feed capable of simultaneous uplink and downlink involving monopulse tracking and ease of assembly on a moving and constrained workplace like ship or a truck is also major driving parameter in the design. These parameters are explicitly analyzed and discussed in this paper.","PeriodicalId":168839,"journal":{"name":"2015 IEEE Applied Electromagnetics Conference (AEMC)","volume":"324 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114064805","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: 4
Tolerance on element failure for DoA estimation: A soft-computing approach DoA估计中元件失效容忍度:一种软计算方法
2015 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2015-12-01 DOI: 10.1109/AEMC.2015.7509130
O. P. Acharya, A. Patnaik, S. Sinha
{"title":"Tolerance on element failure for DoA estimation: A soft-computing approach","authors":"O. P. Acharya, A. Patnaik, S. Sinha","doi":"10.1109/AEMC.2015.7509130","DOIUrl":"https://doi.org/10.1109/AEMC.2015.7509130","url":null,"abstract":"The Direction of Arrival (DoA) estimation of signals impinging on a failed antenna array is approached as an optimization problem and solved by using particle swarm optimization (PSO) technique with single snapshot. The performance and usefulness of this algorithm is analyzed under different failure scenarios and also in different noisy environment. In this paper we have made a study on the tolerance level of this element failure, for which the estimated value of DoA remain in acceptable limit. Results show that a PSO algorithm is capable of solving the problem of DoA estimation under element failure scenario.","PeriodicalId":168839,"journal":{"name":"2015 IEEE Applied Electromagnetics Conference (AEMC)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121945518","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
Calculation of cloud attenuation at Ku and Ka band frequencies over Indian region 印度地区Ku和Ka波段云衰减的计算
2015 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2015-12-01 DOI: 10.1109/AEMC.2015.7509233
R. Shriram, S. Ahamed, L. S. Kumar
{"title":"Calculation of cloud attenuation at Ku and Ka band frequencies over Indian region","authors":"R. Shriram, S. Ahamed, L. S. Kumar","doi":"10.1109/AEMC.2015.7509233","DOIUrl":"https://doi.org/10.1109/AEMC.2015.7509233","url":null,"abstract":"Atmospheric parameters such as pressure, temperature, dew-point temperature, relative humidity are obtained from radiosonde data for the subtropical region, Karaikal, India. From these parameters, cloud liquid water contents and cloud attenuations are obtained using Salonen and Uppala and ITU-R models at Karaikal (India). Total liquid water contents and total attenuation values of Karaikal station are compared with total liquid water contents and total attenuation values of few other stations in India.","PeriodicalId":168839,"journal":{"name":"2015 IEEE Applied Electromagnetics Conference (AEMC)","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127962526","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 3-port UWB MIMO antenna with enhanced isolation 具有增强隔离的3端口UWB MIMO天线
2015 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2015-12-01 DOI: 10.1109/AEMC.2015.7509221
T. Roshna, U. Deepak, V. Sajitha, P. Mohanan
{"title":"A 3-port UWB MIMO antenna with enhanced isolation","authors":"T. Roshna, U. Deepak, V. Sajitha, P. Mohanan","doi":"10.1109/AEMC.2015.7509221","DOIUrl":"https://doi.org/10.1109/AEMC.2015.7509221","url":null,"abstract":"A novel compact Coplanar Stripline (CPS)-fed 3-port MIMO antenna for UWB (Ultra-Wideband) application is investigated. The proposed antenna consists of three staircase-shaped radiating elements, which are integrated on a single 45mm × 25mm × 1.6mm FR-4 substrate. Spatial and polarization diversity within the antenna elements provided an average isolation of more than 20 dB throughout the UWB band. Good pattern diversity with a low Envelope Correlation Coefficient of ≤ 0.0026 are obtained within the UWB band.","PeriodicalId":168839,"journal":{"name":"2015 IEEE Applied Electromagnetics Conference (AEMC)","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132122110","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
Realization of a 36-way cavity RF combiner at 476MHz for IR-FEL 用于IR-FEL的476MHz 36路腔射频合成器的实现
2015 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2015-12-01 DOI: 10.1109/AEMC.2015.7509134
M. K. Jain, R. K. Deo, G. Kumar, M. Lad
{"title":"Realization of a 36-way cavity RF combiner at 476MHz for IR-FEL","authors":"M. K. Jain, R. K. Deo, G. Kumar, M. Lad","doi":"10.1109/AEMC.2015.7509134","DOIUrl":"https://doi.org/10.1109/AEMC.2015.7509134","url":null,"abstract":"A 36-way cavity combiner was realized. The combiner structure is consisting of a cylindrical cavity; RF post-couplers, 36 nos., connected to N-type input ports; and a 1⅝\" EIA coaxial combiner output port & coupler. Distinctive feature of this structure is that of inputs which are conductively coupled to the cavity; providing perfect symmetry for in-phase excitation, structural stability for its long term performance and that facilitating a large numbers of RF inputs to be combined. Design, construction, simulation and test results for its satisfactory performance are described for the cavity combiner which is to be used in combining output power from transistor based pulsed RF amplifier modules at 476MHz operating RF frequency so as to have 20kW pulse RF power source for IR-FEL.","PeriodicalId":168839,"journal":{"name":"2015 IEEE Applied Electromagnetics Conference (AEMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130451553","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
Dual Band Resistance Compression Network using Composite Right/Left Hand Transmission Line 采用复合左右传输线的双频电阻压缩网络
2015 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2015-12-01 DOI: 10.1109/AEMC.2015.7509148
Prya Darshni, Saumya Adhikari
{"title":"Dual Band Resistance Compression Network using Composite Right/Left Hand Transmission Line","authors":"Prya Darshni, Saumya Adhikari","doi":"10.1109/AEMC.2015.7509148","DOIUrl":"https://doi.org/10.1109/AEMC.2015.7509148","url":null,"abstract":"This work shows the construction of a Dual Band Resistance Compression Network operating at 2.4GHz and 5GHz using the Dual Band property of Composite Right/Left Hand Transmission Line. It compresses varied load resistances in the range 15-75 Ω to a reduced and nearly constant input impedance which can then be deployed in any impedance matching network such as the quarter wave transformer to be matched to a single source with any resistance.","PeriodicalId":168839,"journal":{"name":"2015 IEEE Applied Electromagnetics Conference (AEMC)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133897353","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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