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2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)最新文献

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Cross-polarization reduction in a directive ultra-wideband antenna using electromagnetic polarization filter 用电磁极化滤波器抑制定向超宽带天线的交叉极化
2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2014-07-13 DOI: 10.1109/ANTEM.2014.6887741
Navid Rezazadeh, L. Shafai
{"title":"Cross-polarization reduction in a directive ultra-wideband antenna using electromagnetic polarization filter","authors":"Navid Rezazadeh, L. Shafai","doi":"10.1109/ANTEM.2014.6887741","DOIUrl":"https://doi.org/10.1109/ANTEM.2014.6887741","url":null,"abstract":"An electromagnetic polarization filter (EMPF) is designed to reduce the cross-polarization of a directive ultra-wideband (UWB) antenna. The filter is a rectangular cap with solid metal sheets on two sides and printed metal strips on the top and other sides. This cap increases the height of the whole structure by 5 mm while reducing the maximum cross-polarization level by 7 dB over the frequency band 8 GHz to 11 GHz. The resulting antenna has a maximum cross-polarization level of -20 dB over the frequency band.","PeriodicalId":190987,"journal":{"name":"2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123204825","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
Mllimeter-wave hybrid isolator for mutual-coupling reduction applications 用于减少相互耦合应用的毫米波混合隔离器
2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2014-07-13 DOI: 10.1109/ANTEM.2014.6887714
M. Al-Hasan, T. Denidni, A. Sebak
{"title":"Mllimeter-wave hybrid isolator for mutual-coupling reduction applications","authors":"M. Al-Hasan, T. Denidni, A. Sebak","doi":"10.1109/ANTEM.2014.6887714","DOIUrl":"https://doi.org/10.1109/ANTEM.2014.6887714","url":null,"abstract":"A new 60 GHz hybrid isolator is presented and incorporated to efficiently reduce mutual coupling in a closely-spaced dielectric-resonator (DR) antenna array. The hybrid isolator comprises a new compact uni-planar electromagnetic bandgap (EBG) structure and two millimeter-wave (MMW) absorber walls. Simulated results show the effectiveness of the proposed hybrid isolator for reducing the mutual coupling level without disturbing the radiation characteristics. Finally, with the easy-to-fabricate EBG structure, as well as the low cost MMW absorber, the proposed hybrid isolator is suitable to be used in MMW wireless communication systems.","PeriodicalId":190987,"journal":{"name":"2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123754538","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
Quantitative assessment of the operation of the infinite balun 无限平衡机运行的定量评估
2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2014-07-13 DOI: 10.1109/ANTEM.2014.6887692
J. Mclean, R. Sutton, H. Foltz
{"title":"Quantitative assessment of the operation of the infinite balun","authors":"J. Mclean, R. Sutton, H. Foltz","doi":"10.1109/ANTEM.2014.6887692","DOIUrl":"https://doi.org/10.1109/ANTEM.2014.6887692","url":null,"abstract":"We investigate the balancing efficacy of the \"infinite\" balun using a numerical simulation of a log periodic dipole antenna fed from a coaxial source via an infinite balun. The simulation enables the accurate representation of the coaxial source and the computation of the current on the two conductors of the feed transmission line. We show that the infinite balun feed arrangement results in localized current imbalance and storage of surface charge in the vicinity of feed point of the antenna. The result is not unexpected, but it is interesting to see the degree of current imbalance and how this imbalance diminishes with distance away from the feed point. It is shown that lengthening the portion of the feed transmission line in front of the foremost elements improves the current balance and therefore the co-polarized gain at the upper operating frequency of the antenna where these elements are active.","PeriodicalId":190987,"journal":{"name":"2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127229309","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
Compact multiband monopole antenna for USB dongle applications 紧凑型多波段单极天线，用于USB加密狗应用
2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2014-07-13 DOI: 10.1109/ANTEM.2014.6887752
Bybi P. Chacko, Gijo Augusitn, T. Denidni
{"title":"Compact multiband monopole antenna for USB dongle applications","authors":"Bybi P. Chacko, Gijo Augusitn, T. Denidni","doi":"10.1109/ANTEM.2014.6887752","DOIUrl":"https://doi.org/10.1109/ANTEM.2014.6887752","url":null,"abstract":"A low-profile multiband monopole antenna is proposed for universal serial bus (USB) dongle applications. The antenna consists of two folded radiating elements and occupies a compact size of 40 × 15 × 0.76 mm3. The 2:1 VSWR band widths of the proposed antenna cover the (2.4/5.8) GHz WLAN and (3.5 GHz) WiMAX band. Details of the proposed antenna including reflection coefficient, surface current, radiation pattern and gain are presented.","PeriodicalId":190987,"journal":{"name":"2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116877208","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
A fast and efficient permittivity estimation method for artificially engineered microwave materials 一种快速有效的人工微波材料介电常数估算方法
2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2014-07-13 DOI: 10.1109/ANTEM.2014.6887660
M. T. Aligodarz, A. Rashidian, D. Klymyshyn, L. Shafai
{"title":"A fast and efficient permittivity estimation method for artificially engineered microwave materials","authors":"M. T. Aligodarz, A. Rashidian, D. Klymyshyn, L. Shafai","doi":"10.1109/ANTEM.2014.6887660","DOIUrl":"https://doi.org/10.1109/ANTEM.2014.6887660","url":null,"abstract":"A simulation based method is proposed to estimate the effective permittivity of artificially engineered materials with controlled electromagnetic properties, that can increase the effective permittivity of low permittivity dielectrics. Details of the proposed method and the results for a sample with window-shaped inclusions are discussed. The method provides a systematic approach to study the influence of different parameters on the effective permittivity, which is necessary for using these materials in antenna design.","PeriodicalId":190987,"journal":{"name":"2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117014613","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
A direction-finding mothed based on power measurement in space 一种基于空间功率测量的测向方法
2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2014-07-13 DOI: 10.1109/ANTEM.2014.6887734
Shan Wang, Jinyong Fang, Song Jin
{"title":"A direction-finding mothed based on power measurement in space","authors":"Shan Wang, Jinyong Fang, Song Jin","doi":"10.1109/ANTEM.2014.6887734","DOIUrl":"https://doi.org/10.1109/ANTEM.2014.6887734","url":null,"abstract":"Nowadays, a growing number of satellites have been sent to the space, the electromagnetic environment is worse than any before. The electromagnetic wave disturbs the receiving module to receive the effective signal, even break the satellites down. So we have to detect where the disturb microwave came from. We can detect the continuous wave with lots of methods, just like the TDOA and the phase interferometer. But there is less way to measure the impulse wave, especially the wave which width of the impulse only has 10ns wave. It is hard to detect and measure it with the traditional method. This paper has realized the detecting with four antennas and created a new method to make sure the direction of both impulse and continuous wave.","PeriodicalId":190987,"journal":{"name":"2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122145683","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
Reconfigurable Zeroth Order And Half Wave Length Resonator Antenna For Pattern Reconfiguration Using Tunable EBG Structures 利用可调谐EBG结构进行方向图重构的可重构零阶半波长谐振器天线
2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2014-07-13 DOI: 10.1109/ANTEM.2014.6887748
K. Krishnamoorthy, B. Majumder, J. Mukherjee, K. P. Ray
{"title":"Reconfigurable Zeroth Order And Half Wave Length Resonator Antenna For Pattern Reconfiguration Using Tunable EBG Structures","authors":"K. Krishnamoorthy, B. Majumder, J. Mukherjee, K. P. Ray","doi":"10.1109/ANTEM.2014.6887748","DOIUrl":"https://doi.org/10.1109/ANTEM.2014.6887748","url":null,"abstract":"A pattern reconfigurable antenna utilizing the property of Zeroth Order resonator mode and the half wavelength patch resonator mode has been presented. To excite the TM01 mode of the patch in the same ZOR frequency, tunable Electromagnetic Band Gap (EBG) structures with proper switch selection has been adopted. It is clear from the simulation that both the ZOR frequency and the patch dominant mode frequency can be tuned at 4.21GHz to achieve the pattern reconfigurable antenna.","PeriodicalId":190987,"journal":{"name":"2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117272705","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
Design of an FSS-backed 20/30 GHz circularly polarized reflectarray for shared aperture X/Ka-band satellite applications 共享孔径X/ ka波段卫星用fss支持的20/ 30ghz圆偏振反射天线设计
2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2014-07-13 DOI: 10.1109/ANTEM.2014.6887697
M. R. Chaharmir, J. Shaker
{"title":"Design of an FSS-backed 20/30 GHz circularly polarized reflectarray for shared aperture X/Ka-band satellite applications","authors":"M. R. Chaharmir, J. Shaker","doi":"10.1109/ANTEM.2014.6887697","DOIUrl":"https://doi.org/10.1109/ANTEM.2014.6887697","url":null,"abstract":"A 20/30GHz Frequency Selective Surface (FSS)-backed reflectarray is introduced in this paper. This reflectarray is designed as part of a shared aperture reflectarray for simultaneous operation at X- and Ka-band. The reflectarray is illuminated with a circularly polarized (CP) feed and the elements are designed to collimate the beam in a desired direction. Separate reflectarrays with frequency selective surface (FSS) as the ground plane was designed for both receive (20 GHz) and transmit (30 GHz) bands. This FSS-backed reflectarray will be located on the top of an X-band reflectarray with a solid ground and the FSS structure is designed to maximize the transmission at X-band.","PeriodicalId":190987,"journal":{"name":"2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117341135","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
Ultra-wideband pattern diversity antenna with cavity 带腔的超宽带方向分集天线
2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2014-07-13 DOI: 10.1109/ANTEM.2014.6887740
Navid Rezazadeh, L. Shafai
{"title":"Ultra-wideband pattern diversity antenna with cavity","authors":"Navid Rezazadeh, L. Shafai","doi":"10.1109/ANTEM.2014.6887740","DOIUrl":"https://doi.org/10.1109/ANTEM.2014.6887740","url":null,"abstract":"A new ultra-wideband (UWB) pattern diversity antenna design is proposed and simulation results are presented. With a size 40×42×21 mm3, the proposed antenna structure consists of a disk radiating element, fed at two points at 90° angle by two coaxial lines. The excitation of feed lines determines the radiation pattern of the antenna, which is either directional or squinted. The disk and its feed lines are supported by a ground plane which is shaped like a cavity. The disks are also slightly modified in geometry to suppress unwanted radiation and increase ports isolation. The antenna shows an impedance bandwidth from 6.8 GHz to more than 15 GHz.","PeriodicalId":190987,"journal":{"name":"2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127940023","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
Directive beaming with lens-like superstates for low profile Fabry-Perot cavity antennas 带有透镜状超态的定向光束，用于低调的法布里-珀罗腔天线
2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2014-07-13 DOI: 10.1109/ANTEM.2014.6887691
R. Hashmi, K. Esselle, S. Hay
{"title":"Directive beaming with lens-like superstates for low profile Fabry-Perot cavity antennas","authors":"R. Hashmi, K. Esselle, S. Hay","doi":"10.1109/ANTEM.2014.6887691","DOIUrl":"https://doi.org/10.1109/ANTEM.2014.6887691","url":null,"abstract":"Lens-like superstrates designed to exhibit a spatial reflectivity map are studied for use as the partially reflecting surface in Fabry-Perot cavity antennas. Profile reduction is obtained by using only a single dielectric layer of such surfaces which is found to provide improved performance than the multi-layered superstrates. The use of such surfaces results in a varied reflectivity within the cavity and makes the boresight emissions spatially coherent. This provides high boresight directivity with improved bandwidth characteristics. With this surface as super-strate of a resonant cavity antenna, performance is evaluated for a single feed exciting the cavity. Highly directive beams with 17.6dBi peak directivity and fairly suppressed side lobes are obtained over a very wide bandwidth with only a single layer lens-like surface.","PeriodicalId":190987,"journal":{"name":"2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132423035","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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