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2011 11th Mediterranean Microwave Symposium (MMS)最新文献

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Simultaneous gain and bandwidth enhancement of a circularly polarized microstrip patch antenna using a coupled square-shape split ring resonators metamaterial superstrate 利用耦合方形分裂环谐振腔的超材料层实现圆极化微带贴片天线的同时增益和带宽增强
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068570
Iman Ben Issa, M. Essaaidi
{"title":"Simultaneous gain and bandwidth enhancement of a circularly polarized microstrip patch antenna using a coupled square-shape split ring resonators metamaterial superstrate","authors":"Iman Ben Issa, M. Essaaidi","doi":"10.1109/MMS.2011.6068570","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068570","url":null,"abstract":"We propose a coupled square-shape split ring resonators metamaterial structure as a superstrate for a circularly polarized microstrip patch antenna to achieve simultaneous enhancement on its gain and bandwidth‥ The coupled square-shape split ring resonators metamaterial superstrate is shown to enhance the bandwidth by a factor of 2 and to increase the gain of the antenna by 8.17 dB compared to the conventional circularly polarized microstrip patch antenna.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126350340","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
Design of an FP/EBG antenna with metamaterial PRS 基于超材料PRS的FP/EBG天线设计
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068581
S. Dakhli, K. Mahdjoubi, J. Floc'h, H. Rmili, H. Zangar
{"title":"Design of an FP/EBG antenna with metamaterial PRS","authors":"S. Dakhli, K. Mahdjoubi, J. Floc'h, H. Rmili, H. Zangar","doi":"10.1109/MMS.2011.6068581","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068581","url":null,"abstract":"FP/EBG antennas have received intensive attention and large investigations during the last decade. The development of such structure opened the field for real industrial applications in the microwave domain, especially for the antenna design. In this paper we present an FP/EBG antenna operating around 2GHz. The structure consists of a Fabry-Perot Cavity composed of a ground plane, an air cavity and a Partially Reflecting Surface (PRS) made of SRR cells (Slot Ring Resonator). The simulation results show a directivity enhancement of about 4 dB. This structure can be used as directive antenna in communication systems.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126398638","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
Coupling between two radiating apertures on a perfectly conducting cylinder 完美导电圆柱体上两个辐射孔之间的耦合
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068563
S. Beldi, R. Bedira, A. Gharsallah
{"title":"Coupling between two radiating apertures on a perfectly conducting cylinder","authors":"S. Beldi, R. Bedira, A. Gharsallah","doi":"10.1109/MMS.2011.6068563","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068563","url":null,"abstract":"The WCIP avoids the undesired phenomenon of unbounded operators; relations between currents and fields, obtained using unbounded impedance operators, are transposed to relations between waves supplied by bounded scattering operators.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126491557","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
Compact K-band distributed RF MEMS phase shifter based on high-speed switched capacitors 基于高速开关电容的小型k波段分布式射频MEMS移相器
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068521
Amrita Chakraborty, A. Kundu, S. Dhar, S. Maity, S. Chatterjee, B. Gupta
{"title":"Compact K-band distributed RF MEMS phase shifter based on high-speed switched capacitors","authors":"Amrita Chakraborty, A. Kundu, S. Dhar, S. Maity, S. Chatterjee, B. Gupta","doi":"10.1109/MMS.2011.6068521","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068521","url":null,"abstract":"A high-speed switched capacitor based distributed MEMS phase shifter has been presented. Miniaturization of the conventional MEMS capacitor dimensions has been done to achieve sub-microsecond switching, lower actuation voltage and a compact structure. Conventional design approach of such high-speed MEMS capacitor based phase shifter employs cascading the capacitors on a linear coplanar transmission line. Compactness of the device is achieved by employing space filling curves like i) Meander line CPW and ii) Modified Hilbert curve CPW. Simulations conducted reveal that the modified Hilbert Curve based phase shifter provides the most compact structure and yields a phase shift of ∼180° at 22GHz (K-band). The modified Hilbert Curve occupies an area of (820×820) µm2 only. Electromechanical simulations indicate that the switched capacitors require an actuation voltage of 14V and a switching time of 220ns.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125102334","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
Dual-band bandpass filters based on multilayer ring resonators 基于多层环形谐振器的双带带通滤波器
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068523
S. Hashemi
{"title":"Dual-band bandpass filters based on multilayer ring resonators","authors":"S. Hashemi","doi":"10.1109/MMS.2011.6068523","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068523","url":null,"abstract":"This paper presents a new class of super compact dual-band bandpass filters based on multilayer ring resonators (MRR). A realization method using the MRR structure is proposed to develop filters with two passbands located within the ultra-wideband (UWB) constituted frequency region. Two possible configurations to create such filters are explained here using either four or five rings. Electromagnetic (EM) simulations are carried out to demonstrate the frequency responses of the filters. The volume of the proposed circuits is less than 3 mm × 3 mm × 2 mm.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"205 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123051154","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
The laptop casing shielding effectiveness measurement 笔记本电脑外壳屏蔽效能测量
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068516
R. Przesmycki, L. Nowosielski, M. Wnuk, M. Bugaj
{"title":"The laptop casing shielding effectiveness measurement","authors":"R. Przesmycki, L. Nowosielski, M. Wnuk, M. Bugaj","doi":"10.1109/MMS.2011.6068516","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068516","url":null,"abstract":"The article concerns problems of electromagnetic compatibility of portable computers. Its aim is to present a sample position application and methodology of measuring shielding effectiveness of a casing used for shielding of portable computers of laptop type in the frequency range from 10kHz to 1GHz. In the article the measuring methodology and a detailed description of the position for measuring shielding effectiveness of a laptop casing in the frequency range from 10kHz to 1GHz have been presented. The research aim is to obtain measuring data essential for estimating attenuation of portable computer casing and determining minimal shielding effectiveness for particular frequencies from the whole measuring range. The above position has been validated by measurements conducted in the Electromagnetic Compatibility Laboratory of Military University of Technology in Poland, which owns accreditation granted by the Polish Centre of Accreditation.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124930195","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
Proximity coupled microstrip patch antenna design with reduced out of band harmonics device at 2.45 GHz 2.45 GHz带外谐波器件的接近耦合微带贴片天线设计
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068557
L. Osman, H. Turki, Z. Harouni, A. Gharsallah
{"title":"Proximity coupled microstrip patch antenna design with reduced out of band harmonics device at 2.45 GHz","authors":"L. Osman, H. Turki, Z. Harouni, A. Gharsallah","doi":"10.1109/MMS.2011.6068557","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068557","url":null,"abstract":"An efficient proximity coupled microstrip patch antenna has been designed at 2.45 GHz. The length of the feeding line penetration and a simple rectangular slot etched in radiation element are used to reject the 2nd and the 3rd harmonic frequencies. The proposed antenna is well suitable for microwave wireless transmission because no input low pass filter and no via-hole connections are required, resulting in simpler and compact structures. An electromagnetic simulation has been used to optimise the antenna. The antenna gain is 6.37 dB at 2.45 GHz operating frequency. The return losses at the 2nd and 3rd harmonic frequencies are −0.4 dB and −0.8 dB, respectively.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"29 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113972185","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
Optimization and improvement performances of dual-band pass RF filters 双带通射频滤波器的优化与性能改进
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068549
Leila Bousbia, M. Mabrouk, A. Ghazel
{"title":"Optimization and improvement performances of dual-band pass RF filters","authors":"Leila Bousbia, M. Mabrouk, A. Ghazel","doi":"10.1109/MMS.2011.6068549","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068549","url":null,"abstract":"In this work, the performances of dual band pass RF filter recently treated, are significantly improved. These improvements include a reduction of insertion loss up to 0.1 dB at center frequency and 6.0 dB on return loss. The simulation results show the effectiveness of the proposed optimization since that the return loss is now better than 30.0 dB. The filter is composing of two cascaded rings and has bandwidth wider of 40.0 MHz. The optimization is performed using successively as setting the width and the longitudinal dimensions of the filter ring. The new optimized filter occupies size of 270.0 mm2 only, rather 321.0 mm2, i.e 16.0 % reduction on overall size than previously.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130584739","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
Adaptive service discovery and proactive routing protocol for Mobile Ad hoc Network 移动自组织网络的自适应服务发现和主动路由协议
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068560
Maher Heni, R. Bouallègue
{"title":"Adaptive service discovery and proactive routing protocol for Mobile Ad hoc Network","authors":"Maher Heni, R. Bouallègue","doi":"10.1109/MMS.2011.6068560","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068560","url":null,"abstract":"We present a reliable solution for service data exchange provided by various nodes of a wireless adhoc networks without bothering the routing protocol mechanism. A service is defined as the entity invoked either by a software, a host or a user. In recent works, the mechanism of service-discovery has been already implemented at application layer. The main idea of this work is to implement new service discovery mechanism at the network layer without disturbing the routing protocol machine in order to cut down latency and also energy consumption.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116345863","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
Design of planar mono-band rejected UWB CPW-Fed antennas for wireless communications 用于无线通信的平面单频抑制超宽带cpw馈电天线设计
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068538
I. Ben Trad, H. Rmili, J. Floch, H. Zangar
{"title":"Design of planar mono-band rejected UWB CPW-Fed antennas for wireless communications","authors":"I. Ben Trad, H. Rmili, J. Floch, H. Zangar","doi":"10.1109/MMS.2011.6068538","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068538","url":null,"abstract":"In this paper, two compact modified square-shaped ultra wideband (UWB) monopole antennas with band rejected capability using open slots and parasitic loop are presented. The CPW-Fed printed monopole structures are designed for UWB wireless communications with rejection of bands 5.725–5.830 GHz and 7.25–7.30 GHz, allocated for military operations. The design details and related results are presented and discussed.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126530556","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
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