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2014 International Symposium on Antennas and Propagation Conference Proceedings最新文献

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Small-size LTE/WWAN coupled-fed loop antenna with distributed parallel resonant circuit 小型LTE/WWAN耦合馈电环形天线分布并联谐振电路
2014 International Symposium on Antennas and Propagation Conference Proceedings Pub Date : 2014-12-01 DOI: 10.1109/ISANP.2014.7026744
Jia-Yi Sze, Shu-Chuan Chen, Yi-Chun Chu
{"title":"Small-size LTE/WWAN coupled-fed loop antenna with distributed parallel resonant circuit","authors":"Jia-Yi Sze, Shu-Chuan Chen, Yi-Chun Chu","doi":"10.1109/ISANP.2014.7026744","DOIUrl":"https://doi.org/10.1109/ISANP.2014.7026744","url":null,"abstract":"A small-size LTE/WWAN coupled-fed loop antenna with a rotated U-shaped strip for laptop-computer applications is presented. The coupled-fed loop antenna formed by a feeding strip and a coupled shorting strip can support two operating bands, both of which cannot cover the desired frequency bands. By embedding a rotated U-shaped strip into the coupled-fed loop to maintain the compactness of the antenna, a distributed parallel resonant circuit (PRC) is formed to expand the bandwidths of the lower band and the higher band. The proposed antenna has a uniplanar structure and is easy to be fabricated on a thin FR4 substrate with an area of only 10 × 50 mm2.","PeriodicalId":354277,"journal":{"name":"2014 International Symposium on Antennas and Propagation Conference Proceedings","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123654826","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
Novel terahertz dual-polarized frequency selective surface with high frequency selectivity 新型高频选择性太赫兹双极化选频表面
2014 International Symposium on Antennas and Propagation Conference Proceedings Pub Date : 2014-12-01 DOI: 10.1109/ISANP.2014.7026603
D. Wang, C. Chan
{"title":"Novel terahertz dual-polarized frequency selective surface with high frequency selectivity","authors":"D. Wang, C. Chan","doi":"10.1109/ISANP.2014.7026603","DOIUrl":"https://doi.org/10.1109/ISANP.2014.7026603","url":null,"abstract":"This work presents a novel terahertz frequency selective surface design, which is constructed by split loop resonators coupled by apertures. This three-layer structure has a narrow bandpass response with two transmission zeros beside the passband, thereby achieving high frequency selectivity and suppressing the sidebands. Due to the symmetric structure, the proposed surface exhibits dual-polarized characteristics.","PeriodicalId":354277,"journal":{"name":"2014 International Symposium on Antennas and Propagation Conference Proceedings","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121197986","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: 5
Analysis on balanced and unbalanced modes for dipole antennas using characteristic modes 用特征模分析偶极子天线的平衡与不平衡模
2014 International Symposium on Antennas and Propagation Conference Proceedings Pub Date : 2014-12-01 DOI: 10.1109/ISANP.2014.7026619
N. Ishii
{"title":"Analysis on balanced and unbalanced modes for dipole antennas using characteristic modes","authors":"N. Ishii","doi":"10.1109/ISANP.2014.7026619","DOIUrl":"https://doi.org/10.1109/ISANP.2014.7026619","url":null,"abstract":"Modal analysis on dipole antenna using method of moments and characteristic modes is used to evaluate the amount of the excitation for balanced and unbalanced modes. To separate the current on the antenna into the balanced and unbalanced modes, the current distribution is decomposed into even- and odd-symmetrical distribution with respect to reference plane. As a result, the power ratio of the unbalanced to balanced modes can be numerically computed without setting both balanced and unbalanced feed ports on the analytical model.","PeriodicalId":354277,"journal":{"name":"2014 International Symposium on Antennas and Propagation Conference Proceedings","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121341349","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
Noise investigation of an active non-foster matching network for small antennas 小天线有源非培养匹配网络的噪声研究
2014 International Symposium on Antennas and Propagation Conference Proceedings Pub Date : 2014-12-01 DOI: 10.1109/ISANP.2014.7026618
C. Stedler, Volker Wienstroer, R. Kronberger
{"title":"Noise investigation of an active non-foster matching network for small antennas","authors":"C. Stedler, Volker Wienstroer, R. Kronberger","doi":"10.1109/ISANP.2014.7026618","DOIUrl":"https://doi.org/10.1109/ISANP.2014.7026618","url":null,"abstract":"Matching networks with Non-Foster elements seem to be useful for the matching of small antennas. This paper presents the advantages and disadvantages of such a non-Foster matching network with active elements. Therefore a comparison with a conventional matching network regarding signal performance only and in addition regarding signal-to noise (SNR) performance for automotive application in the FM frequency range is made. In contrast to other publications a severe SNR disadvantage of the non-Foster network results.","PeriodicalId":354277,"journal":{"name":"2014 International Symposium on Antennas and Propagation Conference Proceedings","volume":"281 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113966887","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
Highly accurate direction-of-arrival estimation with a uniform circular array 高精度的到达方向估计与均匀圆形阵列
2014 International Symposium on Antennas and Propagation Conference Proceedings Pub Date : 2014-12-01 DOI: 10.1109/ISANP.2014.7026685
Kuan-Hao Chen, Jean‐Fu Kiang
{"title":"Highly accurate direction-of-arrival estimation with a uniform circular array","authors":"Kuan-Hao Chen, Jean‐Fu Kiang","doi":"10.1109/ISANP.2014.7026685","DOIUrl":"https://doi.org/10.1109/ISANP.2014.7026685","url":null,"abstract":"A mutual coupling compensation method is proposed to enhance the estimation accuracy of an incident wave upon a uniform circular array (UCA), with the initial guess estimated using the UCA-rank reduction (RARE) method. Simulation results under various signal-to-noise ratios confirm the effectiveness of the proposed method.","PeriodicalId":354277,"journal":{"name":"2014 International Symposium on Antennas and Propagation Conference Proceedings","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127663879","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 gain-enhanced 60 GHz Yagi antenna based on zero-index metamaterial 基于零折射率超材料的60 GHz增益增强八木天线
2014 International Symposium on Antennas and Propagation Conference Proceedings Pub Date : 2014-12-01 DOI: 10.1109/ISANP.2014.7026668
H. Su, Yan-Jyun Chen, Ken-Huang Lin
{"title":"A gain-enhanced 60 GHz Yagi antenna based on zero-index metamaterial","authors":"H. Su, Yan-Jyun Chen, Ken-Huang Lin","doi":"10.1109/ISANP.2014.7026668","DOIUrl":"https://doi.org/10.1109/ISANP.2014.7026668","url":null,"abstract":"Metamaterial (MTM) unit-cells with a zero refractive index was developed, characterized and employed for gain enhancement of a Yagi antenna operating at 60 GHz. The unique property of the MTM gathers the wave radiated from the antenna and collimates it towards the normal direction when used as director. The proposed design provides a gain enhancement of 2.3 dB when the nearing zero-refractive-index MTM director is utilized. Simulation results show that the conventional Yagi antenna's director replaced by the proposed MTM directors can achieve a maximum gain of 8.18 dBi at 60 GHz.","PeriodicalId":354277,"journal":{"name":"2014 International Symposium on Antennas and Propagation Conference Proceedings","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127773482","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
Ultra-broad-band six-sector patch array 超宽带六扇区贴片阵列
2014 International Symposium on Antennas and Propagation Conference Proceedings Pub Date : 2014-12-01 DOI: 10.1109/ISANP.2014.7026644
S. Foo
{"title":"Ultra-broad-band six-sector patch array","authors":"S. Foo","doi":"10.1109/ISANP.2014.7026644","DOIUrl":"https://doi.org/10.1109/ISANP.2014.7026644","url":null,"abstract":"Six-sector cellular arrays with proper azimuth beam patterns are able to offer network capacity increase by a factor nearly two. This article presents concept and design method of an optimum ultra broadband dual-beam array for use in such high-capacity cellular networks. Critical antenna parameters of the dual-beam arrays are discussed. A new ultra-broad-band stacked patch radiator with triple-resonance is also introduced. This new type of broadband patch radiator has a frequency bandwidth of over 45% with VSWR less than 1.5:1.","PeriodicalId":354277,"journal":{"name":"2014 International Symposium on Antennas and Propagation Conference Proceedings","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122281725","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
An efficient MHz range analysis by ARMA-FDTD method with AIC 基于AIC的ARMA-FDTD方法的有效MHz范围分析
2014 International Symposium on Antennas and Propagation Conference Proceedings Pub Date : 2014-12-01 DOI: 10.1109/ISANP.2014.7026570
Kenta Kuwabara, T. Uno, T. Arima
{"title":"An efficient MHz range analysis by ARMA-FDTD method with AIC","authors":"Kenta Kuwabara, T. Uno, T. Arima","doi":"10.1109/ISANP.2014.7026570","DOIUrl":"https://doi.org/10.1109/ISANP.2014.7026570","url":null,"abstract":"MHz frequency range is often used for wireless power transmission (WPT), antenna engineering and so on. The FDTD method is one of the powerful tools in EM field. In the FDTD method, small cell size is required to model complex geometry such as human body. Therefore, the FDTD method needs long calculation time in MHz range analysis, because the time step of the FDTD method is should be small with cell size reducing. Furthermore, time period of MHz range becomes long. On the other hand, ARMA (Autoregressive moving average model)-FDTD method is effective to reduce calculation time. In this research, ARMA-FDTD is applied to MHz range analysis to reduce calculation time. Furthermore, AIC (Akaike Information Criterion) is utilized to determine number of coefficients in ARMA-FDTD method.","PeriodicalId":354277,"journal":{"name":"2014 International Symposium on Antennas and Propagation Conference Proceedings","volume":"271 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115890280","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
Size reduction of UHF planar inverted-F antenna with patch geometry modification 基于贴片几何修正的超高频平面反f天线尺寸减小
2014 International Symposium on Antennas and Propagation Conference Proceedings Pub Date : 2014-12-01 DOI: 10.1109/ISANP.2014.7026763
A. Munir, A. Harish, Chairunnisa
{"title":"Size reduction of UHF planar inverted-F antenna with patch geometry modification","authors":"A. Munir, A. Harish, Chairunnisa","doi":"10.1109/ISANP.2014.7026763","DOIUrl":"https://doi.org/10.1109/ISANP.2014.7026763","url":null,"abstract":"This paper deals with the design and experimentation of ultra high frequency (UHF) planar inverted-F antenna in reduced size with patch geometry modification. The antenna which intended to operate around frequency of 920MHz for medical implant application is deployed on a 0.8mm thick of FR4 Epoxy dielectric substrate. Prior hardware realization, the parameters of antenna including reflection coefficient, gain, and radiation pattern as well as its physical dimension are investigated numerically to obtain the optimum performance design. From experimentation, it shows that the realized antenna which takes a rectangular spiral shape for its patch and has the total dimension of 15mm × 15mm resonates at frequency of 915MHz with gain and bandwidth of -27.03dBi and 17MHz, respectively.","PeriodicalId":354277,"journal":{"name":"2014 International Symposium on Antennas and Propagation Conference Proceedings","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131925945","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: 15
Compact UHF near-field RFID reader antenna 紧凑型超高频近场RFID阅读器天线
2014 International Symposium on Antennas and Propagation Conference Proceedings Pub Date : 2014-12-01 DOI: 10.1109/ISANP.2014.7026808
Tai-Hung Lin, Yi‐Fang Lin, Hua‐Ming Chen, J. Hsu
{"title":"Compact UHF near-field RFID reader antenna","authors":"Tai-Hung Lin, Yi‐Fang Lin, Hua‐Ming Chen, J. Hsu","doi":"10.1109/ISANP.2014.7026808","DOIUrl":"https://doi.org/10.1109/ISANP.2014.7026808","url":null,"abstract":"A compact dual open-loops antenna with bandwidth enhancement is proposed for near-field operations in the ultra-high frequency (UHF) band, which is able to generate a strong and uniform magnetic field in a near-field zone of the smaller open-loop. The two open-loops with individual half-wavelength perimeters are etched on each sides of FR4 printed circuit board and used for widening bandwidth. The fabricated compact antenna with an overall size of a dimension of 60 × 60 × 0.8 mm3, achieves an interrogation zone of 50 × 50 mm2 with good impedance matching and uniform magnetic field distribution over the bandwidth of 888-932 MHz. The measured reading distance of the proposed antenna is up to 130 mm for near-field applications, and it confirmed that the antenna is suitable for handheld radio frequency identification (RFID) reader applications.","PeriodicalId":354277,"journal":{"name":"2014 International Symposium on Antennas and Propagation Conference Proceedings","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131968978","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
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