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2017 IEEE Applied Electromagnetics Conference (AEMC)最新文献

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Effect of variation of height on performance of normal mode helical antenna 高度变化对正模螺旋天线性能的影响
2017 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2017-12-01 DOI: 10.1109/AEMC.2017.8325625
Mulav P. Rathod, S. Wadkar, H. Kumar, G. Kumar, B. Hogade
{"title":"Effect of variation of height on performance of normal mode helical antenna","authors":"Mulav P. Rathod, S. Wadkar, H. Kumar, G. Kumar, B. Hogade","doi":"10.1109/AEMC.2017.8325625","DOIUrl":"https://doi.org/10.1109/AEMC.2017.8325625","url":null,"abstract":"This paper describes the effect of variation of height on the performance of normal mode helical antenna (NMHA) for fixed length of wire and small circular ground plane. The performance of NMHA with respect to variation in thickness of wire and ground plane size has also been carried out. After studying the effects of various parameters, appropriate values of the parameters are selected and the prototype antenna has been fabricated for operation around 2.45 GHz. The measured results are in good agreement with simulated results.","PeriodicalId":397541,"journal":{"name":"2017 IEEE Applied Electromagnetics Conference (AEMC)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121018666","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
Voltage controlled dielectric resonator oscillator using microstrip fed slot excited cylindrical DR 微带馈电槽激励圆柱DR压控介质谐振振荡器
2017 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2017-12-01 DOI: 10.1109/AEMC.2017.8325700
S. Srikanth, M. Adhikary, A. Biswas, M. Akhtar
{"title":"Voltage controlled dielectric resonator oscillator using microstrip fed slot excited cylindrical DR","authors":"S. Srikanth, M. Adhikary, A. Biswas, M. Akhtar","doi":"10.1109/AEMC.2017.8325700","DOIUrl":"https://doi.org/10.1109/AEMC.2017.8325700","url":null,"abstract":"In this paper, a novel voltage tuned dielectric resonator oscillator (Vt-DRO) is designed. A microstrip fed slot excited cylindrical DR is used as a terminating network. The frequency tuning is achieved by placing a varactor in shunt with the DR and varying its reverse bias voltage. An MA 46 series varactor is used for tuning purpose and the reverse bias is applied separately other than the transistor bias. The Vt-DRO is implemented using the negative resistance approach and is composed of three blocks: dielectric resonator, active network and the load network. The measured phase noise of the Vt-DRO is −90 dBc/Hz at an offset of 2 MHz. A very broad tuning range of around 225 MHz is achieved for tuning voltage of 0 to 16 V and the measured power level is around 0dBm.","PeriodicalId":397541,"journal":{"name":"2017 IEEE Applied Electromagnetics Conference (AEMC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116744300","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
Exposure to electromagnetic near-fields radiated by an RFID reader antenna 暴露在射频识别阅读器天线辐射的电磁场中
2017 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2017-12-01 DOI: 10.1109/AEMC.2017.8325677
K. Jomaa, F. Ndagijimana, H. Ayad, M. Fadlallah, J. Jomaah
{"title":"Exposure to electromagnetic near-fields radiated by an RFID reader antenna","authors":"K. Jomaa, F. Ndagijimana, H. Ayad, M. Fadlallah, J. Jomaah","doi":"10.1109/AEMC.2017.8325677","DOIUrl":"https://doi.org/10.1109/AEMC.2017.8325677","url":null,"abstract":"In this work the electromagnetic fields radiated by an RFID system has been characterized and studied in the near-field region. An RFID reader antenna was designed and simulated on HFSS (high frequency structural simulator). The radiated magnetic field, obtained by simulations, is then compared to the real measured one above the fabricated circuit. The obtained levels were checked if they satisfy the European and ICNIRP Electromagnetic Fields Guidelines.","PeriodicalId":397541,"journal":{"name":"2017 IEEE Applied Electromagnetics Conference (AEMC)","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122943777","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
Absorber using magnetic medium and metamaterial 吸收体采用磁性介质和超材料
2017 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2017-12-01 DOI: 10.1109/AEMC.2017.8325682
U. Rasool, A. Yusoof, K. R. Jha, S. Sharma
{"title":"Absorber using magnetic medium and metamaterial","authors":"U. Rasool, A. Yusoof, K. R. Jha, S. Sharma","doi":"10.1109/AEMC.2017.8325682","DOIUrl":"https://doi.org/10.1109/AEMC.2017.8325682","url":null,"abstract":"In this paper, the design and simulation of a novel ultra-thin low-frequency wideband 2-layer microwave absorber is presented. The study is extended to the analysis of conformal shape of the absorber. The 90% absorption (A) bandwidth of the structure is about 66% in the frequency range of 1.7–3.4 GHz and thus, it may find applications in the wireless communication devices in bands like Wi-Fi, WiMAX, wireless repeater system and multiple-input-multiple-output technology (MIMO), where the isolation and absorption of the electromagnetic wave is required.","PeriodicalId":397541,"journal":{"name":"2017 IEEE Applied Electromagnetics Conference (AEMC)","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115807535","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
Body birdcage coil using cylindrical rods 鸟笼体线圈采用圆柱杆
2017 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2017-12-01 DOI: 10.1109/AEMC.2017.8325647
A. Sidhique, P. H. Rao, R. Harsh
{"title":"Body birdcage coil using cylindrical rods","authors":"A. Sidhique, P. H. Rao, R. Harsh","doi":"10.1109/AEMC.2017.8325647","DOIUrl":"https://doi.org/10.1109/AEMC.2017.8325647","url":null,"abstract":"A high-pass Body Birdcage Coil using cylindrical rods designed for a 1.5 T MRI system is presented. The operating resonant mode is investigated for optimized magnetic Held homogeneity. The shielded Body Birdcage Coil is energized in the circularly polarized feed configuration. The input ports of the Body Birdcage Coil are matched (S11 = S22 = −19.7 dB) and isolated (S21 = S12 = −26.4 dB) at 64.3 MHz. The same analysis has been extended for human model loaded Body Birdcage Coil. A slight shift in the resonant frequency from 64.3 MHz to 63.5 MHz is observed for unloaded and human model loaded Birdcage Coil. The B1+ field distribution of human model loaded and unloaded Body Birdcage Coils are presented for dominant mode.","PeriodicalId":397541,"journal":{"name":"2017 IEEE Applied Electromagnetics Conference (AEMC)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127138766","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 new approach to identification and localization of current sources in a PCB from near fields 一种近场识别和定位PCB电流源的新方法
2017 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2017-12-01 DOI: 10.1109/AEMC.2017.8325676
S. Nimisha, Ndagijimana Fabien, Fu Yan
{"title":"A new approach to identification and localization of current sources in a PCB from near fields","authors":"S. Nimisha, Ndagijimana Fabien, Fu Yan","doi":"10.1109/AEMC.2017.8325676","DOIUrl":"https://doi.org/10.1109/AEMC.2017.8325676","url":null,"abstract":"This paper presents a new method for the source reconstruction from the near field data. The method uses the integral equations of an electric dipole in order to perform a 2-dimensional cross correlation with the magnetic fields of the device under test or PCB. The proposed method represents the PCB in terms of a set of equivalent current elements and also gives the information about the position and orientation of the source. The radiation from a PCB at the far field is then calculated using this equivalent source.","PeriodicalId":397541,"journal":{"name":"2017 IEEE Applied Electromagnetics Conference (AEMC)","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134458966","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
Reduction of radar cross section of patch antenna using modulated metasurface 利用调制超表面减小贴片天线的雷达截面
2017 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2017-12-01 DOI: 10.1109/AEMC.2017.8325724
V. Tripathi, K. Goodwill, M. V. Kartikeyan
{"title":"Reduction of radar cross section of patch antenna using modulated metasurface","authors":"V. Tripathi, K. Goodwill, M. V. Kartikeyan","doi":"10.1109/AEMC.2017.8325724","DOIUrl":"https://doi.org/10.1109/AEMC.2017.8325724","url":null,"abstract":"A research work aimed at reducing radar cross section (RCS) and enhancing gain of the patch antenna by using modulated metasurface structure, without degrading the radiation performance, is proposed in this paper. The operating frequency is 10.5 GHz. In addition, the modulated metasurface is achieved by changing the rotation angle and size of elements of unit cell of metasurface structure. Simulated results demonstrate that the proposed modulated metasurface structure can reduce the RCS significantly in the operating frequency range of 6 GHz to 14 GHz for both X-and Y-polarizations which makes it promising in various applications. Average reduction for the complete frequency range is approximately 70dB and gain enhancement is 4.5 dB. The design is simulated on HFSS v.16.","PeriodicalId":397541,"journal":{"name":"2017 IEEE Applied Electromagnetics Conference (AEMC)","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133418171","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
Wide band low profile ultra-thin meta-surface for X-band application 用于x波段应用的宽带低轮廓超薄元表面
2017 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2017-12-01 DOI: 10.1109/AEMC.2017.8325691
A. Singh, M. Abegaonkar, S. Koul
{"title":"Wide band low profile ultra-thin meta-surface for X-band application","authors":"A. Singh, M. Abegaonkar, S. Koul","doi":"10.1109/AEMC.2017.8325691","DOIUrl":"https://doi.org/10.1109/AEMC.2017.8325691","url":null,"abstract":"In this paper a low profile ultra thin miniaturized wide band reflection type metamaterial surface is proposed. The measured 3 dB stop band of bandwidth 3.98 GHz from 8.02 GHz to 12.00 GHz is obtained. The wide band reflection characteristic is obtained by using modified circular split ring resonator as meta-surface unit cell. The proposed unit cells dimension is 0.25 λ × 0.25 λ × 0.025 λ making the proposed design low profile and ultra thin. The prototype meta-surface is fabricated and measured. A bandwidth enhancement of 50 % with electrical size reduction of 53.64 % is achieved. Miniaturized meta-surface with wide band characteristic have high value practical applications.","PeriodicalId":397541,"journal":{"name":"2017 IEEE Applied Electromagnetics Conference (AEMC)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130927283","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
Square shaped internal cloak having homogeneous and nonsingular material parameters 具有均匀和非奇异材料参数的方形内斗篷
2017 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2017-12-01 DOI: 10.1109/AEMC.2017.8325678
Nagadastagiri C. Reddy, Archana Rajput, K. V. Srivastava
{"title":"Square shaped internal cloak having homogeneous and nonsingular material parameters","authors":"Nagadastagiri C. Reddy, Archana Rajput, K. V. Srivastava","doi":"10.1109/AEMC.2017.8325678","DOIUrl":"https://doi.org/10.1109/AEMC.2017.8325678","url":null,"abstract":"Square shaped internal cloak having homogeneous and nonsingular material parameters has been designed by dividing the cloak geometry into several triangular and rectangular regions. In each sub-region first order coordinate transformation functions in the cartesian system are used to map the fields in the hidden region to the cloak layer. The material parameters are non singular throughout the cloak geometry and are homogeneous within each sub region. The proposed approach illustrates a design procedure to reduce the dynamic range of constitutive material parameters without compromising the cloaking performance. Material dynamic range is reduced by mapping a small square in the virtual space to concealed volume in physical space.","PeriodicalId":397541,"journal":{"name":"2017 IEEE Applied Electromagnetics Conference (AEMC)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133646369","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 low loss square strip ring resonator for upper Ku-band lens antenna design 一种用于上ku波段透镜天线设计的低损耗方条环形谐振器
2017 IEEE Applied Electromagnetics Conference (AEMC) Pub Date : 2017-12-01 DOI: 10.1109/AEMC.2017.8325689
B. Mishra, S. Sahu
{"title":"A low loss square strip ring resonator for upper Ku-band lens antenna design","authors":"B. Mishra, S. Sahu","doi":"10.1109/AEMC.2017.8325689","DOIUrl":"https://doi.org/10.1109/AEMC.2017.8325689","url":null,"abstract":"In this communication, a square strip ring resonator (SSRR) based periodic metamaterial structure is addressed to improve the gain of a horn antenna operating in 16–20 GHz (upper Ku band) by 6 dB. The unit cell of the periodic metamaterial structure is chosen in such a way that, it offers low loss and dispersion for the lens structure and to realize the near zero values Permeability (μ), Permittivity (ε) and Refractive Index (η). The metamaterial structure as the lens has been designed, simulated and optimized by commercially available ANSYS HFSS Software.","PeriodicalId":397541,"journal":{"name":"2017 IEEE Applied Electromagnetics Conference (AEMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129265751","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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