发布求助
文献互助 智能选刊 最新文献

2009 Applied Electromagnetics Conference (AEMC)最新文献

筛选
英文 中文
CPW-fed quad-band antenna for compact wireless application 用于小型无线应用的cpw馈电四波段天线
2009 Applied Electromagnetics Conference (AEMC) Pub Date : 2009-12-14 DOI: 10.1109/AEMC.2009.5430691
R. Sujith, V. Deepu, D. Laila, S. Mridula, P. Mohanan
{"title":"CPW-fed quad-band antenna for compact wireless application","authors":"R. Sujith, V. Deepu, D. Laila, S. Mridula, P. Mohanan","doi":"10.1109/AEMC.2009.5430691","DOIUrl":"https://doi.org/10.1109/AEMC.2009.5430691","url":null,"abstract":"This paper presents the design and development of a compact CPW fed quad band antenna. This low profile antenna has a dimension of 32mm×31mm when printed on a substrate of dielectric constant 4.4 and height 1.6mm. The antenna covers GSM 900, DCS 1800, IEEE802.11.a, IEEE802.11.b and HiperLAN2 bands. The antenna exhibits good radiation characteristics with moderate gain.","PeriodicalId":127199,"journal":{"name":"2009 Applied Electromagnetics Conference (AEMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121192225","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
Rectangular patch on air and air-dielectric composite substrates to achieve improved radiation characteristics 在空气和空气-介电复合基板上的矩形贴片，以实现改进的辐射特性
2009 Applied Electromagnetics Conference (AEMC) Pub Date : 2009-12-01 DOI: 10.1109/AEMC.2009.5430674
S. Chattopadhyay, J. Siddiqui, D. Guha
{"title":"Rectangular patch on air and air-dielectric composite substrates to achieve improved radiation characteristics","authors":"S. Chattopadhyay, J. Siddiqui, D. Guha","doi":"10.1109/AEMC.2009.5430674","DOIUrl":"https://doi.org/10.1109/AEMC.2009.5430674","url":null,"abstract":"A rectangular microstrip patch on air and composite (air-PTFE) substrate is theoretically and experimentally investigated and compared with conventional microstrip patch. Around 2–3 dB improvement in peak gain along with broad beam radiation pattern is demonstrated. Both experimental and simulated results are presented.","PeriodicalId":127199,"journal":{"name":"2009 Applied Electromagnetics Conference (AEMC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127468158","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
Development of channel model to predict rain rate and attenuation for FMT applications 开发用于FMT应用的预测降雨速率和衰减的信道模型
2009 Applied Electromagnetics Conference (AEMC) Pub Date : 2009-12-01 DOI: 10.1109/AEMC.2009.5430571
D. Das, A. Maitra
{"title":"Development of channel model to predict rain rate and attenuation for FMT applications","authors":"D. Das, A. Maitra","doi":"10.1109/AEMC.2009.5430571","DOIUrl":"https://doi.org/10.1109/AEMC.2009.5430571","url":null,"abstract":"A new model is presented to predict rain rate serially during a rain event at a tropical location. The model is based on the Gaussian distribution of the conditional occurrence of rain rate with a particular value of the rain rate occurring before. The mean and standard deviation of the distribution are modeled with the measured data. The rain rate at a particular time instant is predicted from the knowledge of previous samples. The predictor has tested well with a mean error within 10% for rain rates above 20 mm/hr for 10 sec time interval. The same technique is also successfully applied to predict time series of rain attenuation. The practical application of channel predictor is also shown in this paper for FMT simulation.","PeriodicalId":127199,"journal":{"name":"2009 Applied Electromagnetics Conference (AEMC)","volume":"34 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125870818","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
Study and comparison of RCS of microstrip patch antennas on LiTi-ferrite substrate li -铁氧体衬底微带贴片天线RCS的研究与比较
2009 Applied Electromagnetics Conference (AEMC) Pub Date : 2009-12-01 DOI: 10.1109/AEMC.2009.5430712
N. K. Saxena, N. Kumar, P. Pourush
{"title":"Study and comparison of RCS of microstrip patch antennas on LiTi-ferrite substrate","authors":"N. K. Saxena, N. Kumar, P. Pourush","doi":"10.1109/AEMC.2009.5430712","DOIUrl":"https://doi.org/10.1109/AEMC.2009.5430712","url":null,"abstract":"Radar cross sections (RCS) of rectangular, circular and triangular microstrip patch antennas are presented which are printed on LiTi ferrite substrate in X-band (8-12 GHz) region. In this paper, we precise the preparation of a polycrystalline LiTi ferrite of 2200 Gauss saturation magnetization. The comparison of RCS patterns among RPMA, CPMA and TPMA shows the affective study of radar cross section which differentiates the stealth capacity as well as miniaturization due to the ferrite substrate application.","PeriodicalId":127199,"journal":{"name":"2009 Applied Electromagnetics Conference (AEMC)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123276401","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
Near-field and far-field behavior of the field radiated by a vertically oriented dipole antenna above imperfectly conducting earth 不完全导电地面上垂直定向偶极子天线辐射场的近场和远场特性
2009 Applied Electromagnetics Conference (AEMC) Pub Date : 2009-12-01 DOI: 10.1109/AEMC.2009.5430665
A. De, T. Sarkar, M. Salazar-Palma
{"title":"Near-field and far-field behavior of the field radiated by a vertically oriented dipole antenna above imperfectly conducting earth","authors":"A. De, T. Sarkar, M. Salazar-Palma","doi":"10.1109/AEMC.2009.5430665","DOIUrl":"https://doi.org/10.1109/AEMC.2009.5430665","url":null,"abstract":"In this paper we study the far-field behavior of a vertically oriented antenna above imperfectly conducting ground. The goal of this paper is to show that when an antenna in placed on the ground, the radiation pattern of the antenna has multiple peaks and nulls which increases with the height of the antenna above ground. The far-field as a result starts at a distance proportional to the height of the antenna above ground plane which is further away than the far-field of the isolated antenna in free space. The concept of height-gain and its misleading interpretation is also discussed.","PeriodicalId":127199,"journal":{"name":"2009 Applied Electromagnetics Conference (AEMC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115331661","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
CPW - fed folded spiral strip monopole slot antenna for 5.8 GHz RFID application 用于5.8 GHz射频识别的CPW馈电折叠螺旋条单极槽天线
2009 Applied Electromagnetics Conference (AEMC) Pub Date : 2009-12-01 DOI: 10.1109/AEMC.2009.5430682
P. Selvan, S. Raghavan
{"title":"CPW - fed folded spiral strip monopole slot antenna for 5.8 GHz RFID application","authors":"P. Selvan, S. Raghavan","doi":"10.1109/AEMC.2009.5430682","DOIUrl":"https://doi.org/10.1109/AEMC.2009.5430682","url":null,"abstract":"A novel design of spiral strip monopole antenna fed by a coplanar waveguide (CPW) for radio frequency identification (RFID) applications is presented. The designed antenna, which, including the FR-4 substrate is, only 16.5 mm in length and 20 mm in width, can operate at the frequency of 5.798 GHz and 4.15 dBi gain, respectively. This antenna is suitable for radio frequency identification applications in the 5.8 GHz band. The fundamental parameters of the antenna such as return loss, VSWR, gain and polarization which meets the acceptable antenna standards are obtained. Simulation tool, based on the method of moments (ZELAND IE3D version 12.0) has been used to analyze and optimize the antenna. These properties with compact and uniplanar structure make the antenna suitable for use as RFID tags.","PeriodicalId":127199,"journal":{"name":"2009 Applied Electromagnetics Conference (AEMC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122358076","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
A printed inverted double L-shaped dual-band monopole antenna for RFID applications 一种用于RFID应用的印刷倒双l形双频单极天线
2009 Applied Electromagnetics Conference (AEMC) Pub Date : 2009-12-01 DOI: 10.1109/AEMC.2009.5430608
J. Panda, R. S. Kshetrimayum
{"title":"A printed inverted double L-shaped dual-band monopole antenna for RFID applications","authors":"J. Panda, R. S. Kshetrimayum","doi":"10.1109/AEMC.2009.5430608","DOIUrl":"https://doi.org/10.1109/AEMC.2009.5430608","url":null,"abstract":"Design of a simple microstrip fed monopole patch antenna for the radio frequency identification (RFID) is presented. The antenna has two different resonant paths (forming an inverted double L-shaped structure), supports two resonances around 2.41 GHz and 5.85 GHz, which are reserved for RFID applications. Effectively consistent radiation pattern and large impedance bandwidth has been observed. Impedance bandwidth for −10 dB return loss in the 2.41 GHz and 5.85 GHz center frequency reaches 0.97 GHz (1.95 GHz to 2.92 GHz) and 1.51 GHz (5.23 GHz to 6.74 GHz) respectively.","PeriodicalId":127199,"journal":{"name":"2009 Applied Electromagnetics Conference (AEMC)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116606170","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
Radiation pattern of spherical phased antenna array with Dolph-Chebyshev's aperture distribution 海豚-切比雪夫孔径分布球形相控阵辐射方向图
2009 Applied Electromagnetics Conference (AEMC) Pub Date : 2009-12-01 DOI: 10.1109/AEMC.2009.5430697
Senthil Kumar, Priyesh, Hema Singh, R. Jha
{"title":"Radiation pattern of spherical phased antenna array with Dolph-Chebyshev's aperture distribution","authors":"Senthil Kumar, Priyesh, Hema Singh, R. Jha","doi":"10.1109/AEMC.2009.5430697","DOIUrl":"https://doi.org/10.1109/AEMC.2009.5430697","url":null,"abstract":"The spherical antenna array is a preferred choice for the applications where wide angle scanning is desired. The Dolph-Chebyshev method for beampattern design provides a minimum null-to-null beamwidth for a given sidelobe level. This distribution has direct control over the main-lobe width and maximum sidelobe level. In this paper, an attempt is made to generate radiation pattern of spherical antenna array using Dolph-Chebyshev's amplitude distribution. The amplitude excitations are obtained by exploiting the similarity of Legendre polynomials, used for beampattern of spherical array and Chebyshev polynomials, used for Dolph-Chebyshev pattern.","PeriodicalId":127199,"journal":{"name":"2009 Applied Electromagnetics Conference (AEMC)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130322704","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
Microwave dielectric relaxation study of 1-Hexanol with 1-propenol mixture by using time domain reflectometry at 300K 用时域反射法研究了1-己醇和1-丙烯混合物在300K下的微波介电弛豫
2009 Applied Electromagnetics Conference (AEMC) Pub Date : 2009-12-01 DOI: 10.1109/AEMC.2009.5430597
A. Tidar, Sayyad Shafiyoddin, S. Kamble, G. Dharne, S. Patil, P. Khirade, S. Mehrotra
{"title":"Microwave dielectric relaxation study of 1-Hexanol with 1-propenol mixture by using time domain reflectometry at 300K","authors":"A. Tidar, Sayyad Shafiyoddin, S. Kamble, G. Dharne, S. Patil, P. Khirade, S. Mehrotra","doi":"10.1109/AEMC.2009.5430597","DOIUrl":"https://doi.org/10.1109/AEMC.2009.5430597","url":null,"abstract":"Dielectric relaxation measurement of 1-Hexanol (1-HE), 1-Propenol (1-PR) & their complex have been carried out over the entire concentration range using time domain reflectometry technique at 300K in the frequency range of 10 KHz to 20-GHz. Bilinear calibration method is used to obtain complex permittivity ɛ*(ω) from complex reflection coefficient ρ*(ω) over the frequency range of 10 MHz to 20 GHz. The Excess inverse relaxation time (1/t)E, Kirkwood correlation factor (geff) and Bruggeman factor (fB) are also estimated to study the solute-solvent interaction. The value of dielectric constant increases & relaxation time decreases with increase in concentration 1-PR in 1-HE. Bruggeman plot shows a non - linearity of the curve for all concentration, indicate the hetero interaction which may be due to hydrogen bonding of the OH group of 1-PR with 1-HE.","PeriodicalId":127199,"journal":{"name":"2009 Applied Electromagnetics Conference (AEMC)","volume":"194 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116484728","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: 11
Optically controlled characteristics of III–V Nitride based MM-wave transit-time devices III-V型氮化物基毫米波传输时间器件的光控特性
2009 Applied Electromagnetics Conference (AEMC) Pub Date : 2009-12-01 DOI: 10.1109/AEMC.2009.5430625
M. Mukherjee
{"title":"Optically controlled characteristics of III–V Nitride based MM-wave transit-time devices","authors":"M. Mukherjee","doi":"10.1109/AEMC.2009.5430625","DOIUrl":"https://doi.org/10.1109/AEMC.2009.5430625","url":null,"abstract":"Extensive simulation experiments are carried out for the first time, to study the photo-irradiation effects on the high frequency characteristics of III-V GaN (Gallium Nitride) based Top-Mounted and Flip-Chip IMPATT oscillators at MM-wave window frequency (140.0 GHz). MM-wave properties of un-illuminated GaN IMPATTs are compared with those of conventional Si, GaAs and InP IMPATTs, under similar operating conditions. Superiority of GaN based IMPATTs at D-band is established. It is found that the un-illuminated GaN IMPATT is capable of delivering a output power of 5.6 W with an efficiency of 23.5% at 145.0 GHz. Frequency up-chirping of 6.0 GHz and a degradation of power output by almost 15.0 % are further observed in case of photo-illuminated FC IMPATT. The study reveals that compared to predominate electron photocurrent in Top-Mounted IMPATT, photo-generated leakage current dominated by hole in Flip-Chip IMPATT has more pronounced effect on the GaN based device as regards the frequency chirping and decrease of negative conductance and total negative resistance per unit area of the device. The inequality in the magnitudes of electron and hole ionization rates in the Wide Band Gap semiconductor have been found to be correlated with the above results. The study reveals that GaN IMPATT is a potential candidate for replacing conventional IMPATTs at high frequency operation. These results are useful for practical realization of optically modulated GaN based high power IMPATTs for application in MM-wave communication systems.","PeriodicalId":127199,"journal":{"name":"2009 Applied Electromagnetics Conference (AEMC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121698777","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
下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信