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2012 IEEE Asia-Pacific Conference on Antennas and Propagation最新文献

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A see-through wire-grid film antenna for WLAN applications 一种用于WLAN应用的透明线栅薄膜天线
2012 IEEE Asia-Pacific Conference on Antennas and Propagation Pub Date : 2012-10-18 DOI: 10.1109/APCAP.2012.6333251
N. Guan, H. Furuya, R. Hosono, H. Tayama, K. Yamagami
{"title":"A see-through wire-grid film antenna for WLAN applications","authors":"N. Guan, H. Furuya, R. Hosono, H. Tayama, K. Yamagami","doi":"10.1109/APCAP.2012.6333251","DOIUrl":"https://doi.org/10.1109/APCAP.2012.6333251","url":null,"abstract":"A see-through film antenna is proposed for 2.4 GHz WLAN applications. The antenna is made by a high-quality wire-grid film where very thin copper wires are used so that the antenna is almost transparent. Several kinds of wire-grids are applied and the performance is investigated experimentally and theoretically. It is found that the deterioration on radiation efficiency is limited and the transparency remains for practical applications, if the wire-grid is chosen appropriately.","PeriodicalId":178493,"journal":{"name":"2012 IEEE Asia-Pacific Conference on Antennas and Propagation","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124042642","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: 10
Compact asymmetric-cross slotted microstrip antenna on reactive impedance surface 无功阻抗表面紧凑型非对称交叉开槽微带天线
2012 IEEE Asia-Pacific Conference on Antennas and Propagation Pub Date : 2012-10-18 DOI: 10.1109/APCAP.2012.6333135
K. Agarwal, N. Nasimuddin, A. Alphones
{"title":"Compact asymmetric-cross slotted microstrip antenna on reactive impedance surface","authors":"K. Agarwal, N. Nasimuddin, A. Alphones","doi":"10.1109/APCAP.2012.6333135","DOIUrl":"https://doi.org/10.1109/APCAP.2012.6333135","url":null,"abstract":"A compact, asymmetric-cross slotted microstrip patch antenna on reactive impedance surface (RIS) is proposed and studied for the circularly polarized radiation. The circularly polarized radiation with compact size is achieved by an asymmetric cross slot cut along the orthogonal directions in the center of patch radiator over RIS. The measured results of the proposed antenna are 1.6% (2.51-2.55 GHz) for 3-dB axial ratio bandwidth, 5.2% (2.47-2.60 GHz) for 10-dB return loss bandwidth, and 3.4 dBic for gain at the boresight. The patch radiator size is 0.18 λo × 0.18 λo on a low cost FR4 substrate at 2.5 GHz.","PeriodicalId":178493,"journal":{"name":"2012 IEEE Asia-Pacific Conference on Antennas and Propagation","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126202061","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
Solving multi-scale electromagnetic problems by domain decomposition based integral equation method 基于区域分解的积分方程法求解多尺度电磁问题
2012 IEEE Asia-Pacific Conference on Antennas and Propagation Pub Date : 2012-10-18 DOI: 10.1109/APCAP.2012.6333166
Jun Hu, M. Jiang, Hanru Shao, Z. Nie
{"title":"Solving multi-scale electromagnetic problems by domain decomposition based integral equation method","authors":"Jun Hu, M. Jiang, Hanru Shao, Z. Nie","doi":"10.1109/APCAP.2012.6333166","DOIUrl":"https://doi.org/10.1109/APCAP.2012.6333166","url":null,"abstract":"In this paper, we introduced domain decomposition based integral equation (IE) methods for complicated multi-scale problems. The first multi-scale problem is solving electromagnetic scattering from a perfectly electric conductor with complicated geometry. A hybrid IE-DDM-MLFMA with Gauss-Seidel iteration is developed. As non-overlapping DDM, it has the advantage of flexible dividing domain and no buffer zone. The Gauss-Seidel iteration is proposed to update the currents on each sub-domain in real time, so the number of outer iterations is reduced greatly. The second multi-scale problem is electromagnetic analysis of large antenna array. To realize efficient solution, the tangential equivalence principle algorithm (T-EPA) combined with characteristic basis functions (CBFs) is presented. By utilizing the CBFs together with T-EPA, the analysis of large scale arrays will be more efficient with decreased unknowns compared with original T-EPA. Numerical results are shown to demonstrate the accuracy and efficiency of the present methods.","PeriodicalId":178493,"journal":{"name":"2012 IEEE Asia-Pacific Conference on Antennas and Propagation","volume":"50 46","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134225898","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: 6
A dual-polarized Fabry-Perot resonator antenna 双极化法布里-珀罗谐振器天线
2012 IEEE Asia-Pacific Conference on Antennas and Propagation Pub Date : 2012-10-18 DOI: 10.1109/APCAP.2012.6333143
Min Wang, Qi-Cheng Ye, Wen Wu, D. Fang
{"title":"A dual-polarized Fabry-Perot resonator antenna","authors":"Min Wang, Qi-Cheng Ye, Wen Wu, D. Fang","doi":"10.1109/APCAP.2012.6333143","DOIUrl":"https://doi.org/10.1109/APCAP.2012.6333143","url":null,"abstract":"A dual-polarized Fabry-Perot (FP) resonator antenna with high gain is presented. Two orthogonal polarized rectangular patches fed by coaxial probes are performed as primary radiators. A frequency selective surface (FSS) of square patch array is used as the partially reflecting surface (PRS) cover to enormously increase the directivity. Bandwidths of 3.5% and 4.7% have been realized for two ports, and isolation between two ports is more than 30dB. Measured gains are 20.5dB and 20.2dB at 15GHZ for two polarizations, respectively. The corresponding aperture efficiency is 52.5% and 49.0%. Cross-polarization is better than -25dB.","PeriodicalId":178493,"journal":{"name":"2012 IEEE Asia-Pacific Conference on Antennas and Propagation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131226573","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: 7
Analysis of an elliptical patch antenna using artificial neural networks 椭圆贴片天线的人工神经网络分析
2012 IEEE Asia-Pacific Conference on Antennas and Propagation Pub Date : 2012-10-18 DOI: 10.1109/APCAP.2012.6333204
A. Gehani, D. Pujara, D. Adhyaru
{"title":"Analysis of an elliptical patch antenna using artificial neural networks","authors":"A. Gehani, D. Pujara, D. Adhyaru","doi":"10.1109/APCAP.2012.6333204","DOIUrl":"https://doi.org/10.1109/APCAP.2012.6333204","url":null,"abstract":"In the present paper, the analysis of a circularly polarized elliptical patch antenna using artificial neural networks is pesented. Radius of semi-major axis, feed location to the microstrip patch and the height of the dielectric substrate are taken as inputs to the neural network, while resonant frequency and return-loss are obtained as the outputs. The ANN generated results were found in close agreement with those of simulated results.","PeriodicalId":178493,"journal":{"name":"2012 IEEE Asia-Pacific Conference on Antennas and Propagation","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130738964","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
Double-layer folded loop antenna for UHF near-field RFID applications 用于超高频近场RFID应用的双层折叠环路天线
2012 IEEE Asia-Pacific Conference on Antennas and Propagation Pub Date : 2012-10-18 DOI: 10.1109/APCAP.2012.6333158
Xiuping Li, Zhongyuan Sun, Y. Liu
{"title":"Double-layer folded loop antenna for UHF near-field RFID applications","authors":"Xiuping Li, Zhongyuan Sun, Y. Liu","doi":"10.1109/APCAP.2012.6333158","DOIUrl":"https://doi.org/10.1109/APCAP.2012.6333158","url":null,"abstract":"In this paper, a double-layer folded loop reader antenna is proposed for ultrahigh frequency (UHF) near-field radio frequency identification (RFID) applications. The current distribution along the top loop is kept in phase by folding the microstrip line down to the bottom layer. Thus, the proposed antenna generates strong and even magnetic field distribution in the near-field zone of the antenna. The antenna is printed on two sides of FR4 substrate, with the diameter of 94mm and the height of 20.2mm. The antenna achieves good impedance matching and uniform magnetic field distribution over the band of 858MHz~869MHz. In addition, the simulated reading distance is 90mm.","PeriodicalId":178493,"journal":{"name":"2012 IEEE Asia-Pacific Conference on Antennas and Propagation","volume":"37 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130941098","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: 6
A study of gain enhancement of horn antenna using EBG 利用EBG增强喇叭天线增益的研究
2012 IEEE Asia-Pacific Conference on Antennas and Propagation Pub Date : 2012-10-18 DOI: 10.1109/APCAP.2012.6333213
S. Kampeephat, P. Krachodnok, R. Wongsan
{"title":"A study of gain enhancement of horn antenna using EBG","authors":"S. Kampeephat, P. Krachodnok, R. Wongsan","doi":"10.1109/APCAP.2012.6333213","DOIUrl":"https://doi.org/10.1109/APCAP.2012.6333213","url":null,"abstract":"This paper presents a study of the technique to enhance the gain of horn antenna by using Electromagnetic Band Gap (EBG) transfer the power from its aperture through EBG structures. The proposed antenna has the advantages of low profile, low cost for fabrication, and light weight. Moreover, it provides the moderately high gain. A Computer Simulation Technology (CST) software has been used to compute the reflection coefficient (S11), VSWR, radiation patterns, and gain of the antenna. The bandwidth, at S11 (-10 dB), is between 10 to 14 GHz with a gain of 24 dB at 12 GHz.","PeriodicalId":178493,"journal":{"name":"2012 IEEE Asia-Pacific Conference on Antennas and Propagation","volume":"11 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128846267","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
Electromagnetic study of strong coupled CRLH transmission lines for use in antenna construction 用于天线结构的强耦合CRLH传输线电磁特性研究
2012 IEEE Asia-Pacific Conference on Antennas and Propagation Pub Date : 2012-10-18 DOI: 10.1109/APCAP.2012.6333192
I. Mocanu, G. Sajin, F. Craciunoiu
{"title":"Electromagnetic study of strong coupled CRLH transmission lines for use in antenna construction","authors":"I. Mocanu, G. Sajin, F. Craciunoiu","doi":"10.1109/APCAP.2012.6333192","DOIUrl":"https://doi.org/10.1109/APCAP.2012.6333192","url":null,"abstract":"In this paper there are studied the electromagnetical phenomena which appear when coupling two Composite Right-Left Handed (CRLH) artificial transmission lines with different cells dimensions, one of them being two times smaller. There are analyzed the frequency ranges where the strong coupling appears and also, the differences between the simulated results and the measured ones are compared.","PeriodicalId":178493,"journal":{"name":"2012 IEEE Asia-Pacific Conference on Antennas and Propagation","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127650247","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: 10
Investigation on L-slot loaded dual-band compact patch antenna l槽加载双频紧凑型贴片天线的研究
2012 IEEE Asia-Pacific Conference on Antennas and Propagation Pub Date : 2012-10-18 DOI: 10.1109/APCAP.2012.6333245
R. C. Reddy T, R. Bhattacharjee
{"title":"Investigation on L-slot loaded dual-band compact patch antenna","authors":"R. C. Reddy T, R. Bhattacharjee","doi":"10.1109/APCAP.2012.6333245","DOIUrl":"https://doi.org/10.1109/APCAP.2012.6333245","url":null,"abstract":"An L-slot loaded rectangular microstrip patch antenna (RMSA) for compact, dual band operation is investigated. By varying the dimensions of L-slot, resonant frequencies of both the bands can be altered. An approximate Transmission line based equivalent model is proposed, which agrees well with simulation results. It has been observed that depending on the dimensions of unperturbed, regular RMSA, the proposed antenna exhibits frequency ratios in the range 1.03 to 1.5. By suitable selection of L-slot dimensions, broadband characteristics can be achieved as well.","PeriodicalId":178493,"journal":{"name":"2012 IEEE Asia-Pacific Conference on Antennas and Propagation","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127865782","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
94 GHz substrate integrated waveguide fed antenna in LTCC technology LTCC技术中的94ghz基片集成波导馈电天线
2012 IEEE Asia-Pacific Conference on Antennas and Propagation Pub Date : 2012-10-18 DOI: 10.1109/APCAP.2012.6333256
A. Bunea, D. Neculoiu, M. Lahti, T. Vaha-Heikkila
{"title":"94 GHz substrate integrated waveguide fed antenna in LTCC technology","authors":"A. Bunea, D. Neculoiu, M. Lahti, T. Vaha-Heikkila","doi":"10.1109/APCAP.2012.6333256","DOIUrl":"https://doi.org/10.1109/APCAP.2012.6333256","url":null,"abstract":"This paper presents a novel 94 GHz parasitic antenna array with a substrate integrated waveguide feed. The antenna array was designed for a six tape low-temperature co-fired ceramic process, offering the opportunity of easy integration with other passive and active components. Simulations have shown a high directivity of 8.2 dBi at the central operating frequency of 94 GHz, with reflection losses lower than -10 dB for a 4.75 GHz bandwidth.","PeriodicalId":178493,"journal":{"name":"2012 IEEE Asia-Pacific Conference on Antennas and Propagation","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115759053","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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