2011 IEEE International Symposium on Antennas and Propagation (APSURSI)最新文献_第4页

High gain dual-band antenna using photovoltaic panel as metamaterial superstrate 采用光伏板作为超材料衬底的高增益双频天线

2011 IEEE International Symposium on Antennas and Propagation (APSURSI) Pub Date : 2011-07-03 DOI: 10.1109/APS.2011.5996960

Chun-Yih Wu, Hung-Hsuan Lin, Ta-Chun Pu, Jui-Hung Chen

引用次数: 3

The pareto optimization of wide-band conformal antenna arrays 宽带共形天线阵列的pareto优化

2011 IEEE International Symposium on Antennas and Propagation (APSURSI) Pub Date : 2011-07-03 DOI: 10.1109/APS.2011.5997012

D. Bianchi, A. Monorchio, S. Genovesi, A. Corucci, D. Werner, P. Werner

引用次数: 1

A WSN-based system for real-time electromagnetic monitoring 基于无线网络的实时电磁监测系统

2011 IEEE International Symposium on Antennas and Propagation (APSURSI) Pub Date : 2011-07-03 DOI: 10.1109/APS.2011.5997195

F. Viani, M. Donelli, G. Oliveri, A. Massa, D. Trinchero

{"title":"A WSN-based system for real-time electromagnetic monitoring","authors":"F. Viani, M. Donelli, G. Oliveri, A. Massa, D. Trinchero","doi":"10.1109/APS.2011.5997195","DOIUrl":"https://doi.org/10.1109/APS.2011.5997195","url":null,"abstract":"Nowadays, the wide expansion of smartphones and web-based wireless devices has brought to an increased demand of wireless infrastructures providing higher data bandwidth and better coverage. In this framework, the need of measurement systems aiming at verifying the compliance of the exposure levels to the generated electromagnetic (EM) fields with the safety limits imposed by the authorities came out. This work presents a low-cost solution for the pervasive and real-time electromagnetic monitoring based on a wireless sensor network (WSN) infrastructure. The proposed system implements a distributed strategy that manages both the electromagnetic field measurements acquired by means of the ad-hoc broadband field probes and the propagation of the information throughout the multihop links of the sensor network. The field probe has been designed to be completely passive and easily integrated within a small and low-power device deployed both in indoor and outdoor scenarios. The real-time capabilities as well as the potentialities of the proposed system have been experimentally validated both in controlled and real environments.","PeriodicalId":6449,"journal":{"name":"2011 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"36 3 1","pages":"3129-3132"},"PeriodicalIF":0.0,"publicationDate":"2011-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77967016","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: 14

Subreflectarrays for compact dual reflector antenna systems 紧凑型双反射面天线系统的次反射射线

2011 IEEE International Symposium on Antennas and Propagation (APSURSI) Pub Date : 2011-07-03 DOI: 10.1109/APS.2011.5996949

Shenheng Xu, H. Rajagopalan, Y. Rahmat-Samii

引用次数: 2

Reconfigurable split ring resonator array loaded waveguide for insitu tuning 用于原位调谐的可重构分环谐振器阵列加载波导

2011 IEEE International Symposium on Antennas and Propagation (APSURSI) Pub Date : 2011-07-03 DOI: 10.1109/APS.2011.5997146

Xiaoyu Cheng, Jun-Wei Shi, P. Jao, D. Senior, Y. Yoon

{"title":"Reconfigurable split ring resonator array loaded waveguide for insitu tuning","authors":"Xiaoyu Cheng, Jun-Wei Shi, P. Jao, D. Senior, Y. Yoon","doi":"10.1109/APS.2011.5997146","DOIUrl":"https://doi.org/10.1109/APS.2011.5997146","url":null,"abstract":"Two linear arrays of split ring resonators (SRR) with broad side coupling and various relative positions are investigated for controllable wave transmission in a rectangular waveguide. Each array is designed to have a different unit size of SRRs. A rectangular waveguide with a cutoff frequency of 3.2 GHz shows an additional stopband between 3.4 GHz and 4.8 GHz when a five element SRR array with a unit SRR dimension of 18mm by 18 mm and a pitch of 25mm is loaded. The other five element array with a unit dimension of 10mm by 10mm and a pitch of 25mm is inserted adjacent to the first array with a broad side coupling resulting in another stopband between 5 GHz and 6.5 GHz, where the coupling gap between two arrays is approximately 3mm (120mil) and the dielectric constant is 2.55. The center frequency of the stopband is tunable depending on the degree of alignment between those two arrays. One of the SRR arrays has a piece of magnet attached to its edge, and in-situ tuning is achieved by moving it by a ferrite (or a permanent magent) from outside of the waveguide. The tuning results of numerical simulation show good agreement with those of measurement.","PeriodicalId":6449,"journal":{"name":"2011 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"116 4 1","pages":"2947-2950"},"PeriodicalIF":0.0,"publicationDate":"2011-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79972500","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

Dual-band MIMO antenna using a symmetric slotted structure for 4G USB dongle application 双频MIMO天线采用对称开槽结构，适用于4G USB加密狗应用

2011 IEEE International Symposium on Antennas and Propagation (APSURSI) Pub Date : 2011-07-03 DOI: 10.1109/APS.2011.5996957

Minseok Han, Jaehoon Choi

{"title":"Dual-band MIMO antenna using a symmetric slotted structure for 4G USB dongle application","authors":"Minseok Han, Jaehoon Choi","doi":"10.1109/APS.2011.5996957","DOIUrl":"https://doi.org/10.1109/APS.2011.5996957","url":null,"abstract":"A compact dual-band MIMO antenna using a symmetric slotted structure is proposed for next generation USB dongle applications. The proposed MIMO antenna consists of two printed dual-band PIFAs with a symmetric slotted strip. The first resonance frequency is controlled by the total length of the main radiating strip with coupling slot (W1 = 2 mm and W2 = 2 mm) has a length of 70 mm, which is about 0.18 wavelengths at 0.77 GHz, but it can easily generate a resonant mode to cover LTE band 13 (LTE Band 13; 0.746–0.787 GHz) and the second one is tuned by the width of the slot (W1 and W2) and the position of the port 1 and 2 (P1 and P2) to cover mobile world interoperability for microwave access band (M-WiMAX Band; 2.5–2.69 GHz). In order to improve the isolation characteristic at the LTE and M-WiMAX bands, a symmetric slotted structure and the jointed shorting line are used to reduce the interaction between the two PIFAs. The proposed MIMO antenna has an isolation of approximately 20 dB at LTE band 13 and the envelope correlation coefficient (ECC) of the two antennas is less than 0.2 over the whole LTE band 13. To evaluate the performance of the proposed antenna, key performance parameters such as the total efficiency, ECC, mean effective gain (MEG), MEG ratio and actual diversity gain are analyzed.","PeriodicalId":6449,"journal":{"name":"2011 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"74 1","pages":"2223-2226"},"PeriodicalIF":0.0,"publicationDate":"2011-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79996625","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: 13

Implementation of geometrical boolean functions between bodies defined by NURBS 实现由NURBS定义的实体之间的几何布尔函数

2011 IEEE International Symposium on Antennas and Propagation (APSURSI) Pub Date : 2011-07-03 DOI: 10.1109/APS.2011.6058700

J. Gomez, A. Tayebi, I. González, F. Cátedra

引用次数: 0

Analytical model for coupling of waves between a homogeneous medium and a volumetric transmission-line network 均匀介质与体积在线传输网之间波耦合的解析模型

2011 IEEE International Symposium on Antennas and Propagation (APSURSI) Pub Date : 2011-07-03 DOI: 10.1109/APS.2011.5997056

C. Valagiannopoulos, P. Alitalo, S. Tretyakov

{"title":"Analytical model for coupling of waves between a homogeneous medium and a volumetric transmission-line network","authors":"C. Valagiannopoulos, P. Alitalo, S. Tretyakov","doi":"10.1109/APS.2011.5997056","DOIUrl":"https://doi.org/10.1109/APS.2011.5997056","url":null,"abstract":"The use of transmission-line networks as periodic structures emulating many interesting metamaterial-related phenomena, such as negative refraction ([1], [2]) and cloaking ([3], [4]), has gained increasing interest in the scientific community. Transmission-line networks offer a simple way to create non-resonant, broadband structures exhibiting exotic wave propagation characteristics. A big drawback of traditional transmission-line metamaterials is the fact that most such structures are not inherently coupled with electromagnetic waves propagating in a homogeneous material, such as free space for example. Recently various approaches to couple transmission-line networks to free space have been proposed, see, e.g., [3], [4], [5]. The approach of [3], [4], is based on matching the free space wave to a network by introducing a special transition layer which couples the different modes propagating in the two different “media”. Such a layer can be formed simply by creating metal tapers, which guide the wave with very small amount of reflections from one media to another [3]. This technique has been successfully employed to create an electromagnetic cloaking device based on transmission-line networks [4].","PeriodicalId":6449,"journal":{"name":"2011 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"4 1","pages":"2597-2600"},"PeriodicalIF":0.0,"publicationDate":"2011-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80311535","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

Daubechies framework based Diffracted Gaussian beam approach on parallel computing platforms 并行计算平台上基于衍射高斯光束方法的涂抹框架

2011 IEEE International Symposium on Antennas and Propagation (APSURSI) Pub Date : 2011-07-03 DOI: 10.1109/APS.2011.5997038

Le Wang, G. Pan

引用次数: 0

High-gain circularly polarized resonant cavity antenna using FSS superstrate 基于FSS层板的高增益圆极化谐振腔天线

2011 IEEE International Symposium on Antennas and Propagation (APSURSI) Pub Date : 2011-07-03 DOI: 10.1109/APS.2011.5996962

Shih-Chia Chiu, Shih-Yuan Chen

引用次数: 20