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3×3 Microstrip beam forming network for multibeam triangular array 3×3多波束三角形阵列微带波束形成网络
2010 10th Mediterranean Microwave Symposium Pub Date : 2010-10-18 DOI: 10.1109/MMW.2010.5605198
A. N. Garcia, M. V. Isasa, Manuel Sierra Pérez
{"title":"3×3 Microstrip beam forming network for multibeam triangular array","authors":"A. N. Garcia, M. V. Isasa, Manuel Sierra Pérez","doi":"10.1109/MMW.2010.5605198","DOIUrl":"https://doi.org/10.1109/MMW.2010.5605198","url":null,"abstract":"The design of a beam forming network (BFN) for a triangular cell of three elements is considered. A useful relation between phase excitation of the elements of the cell, beam direction, wavelength and distance is given. The BFN is studied based on a Butler matrix, using balanced and unbalanced hybrid couplers to obtain a three inputs and three outputs network which is used to develop a multibeam structure. A system of three equations is also presented to calculate the lengths of the transmission lines which connect the couplers of the network. These equations allow a flexible design of the network depending on the needed specifications. Finally, a microstrip BFN circuit that demonstrates the utility of the design has been developed.","PeriodicalId":145274,"journal":{"name":"2010 10th Mediterranean Microwave Symposium","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125431460","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
Synthesis techniques for some tunable notch filter topologies 一些可调陷波滤波器拓扑的合成技术
2010 10th Mediterranean Microwave Symposium Pub Date : 2010-10-18 DOI: 10.1109/MMW.2010.5605149
S. Oruc, Bulent Alicioglu, N. Yildirim
{"title":"Synthesis techniques for some tunable notch filter topologies","authors":"S. Oruc, Bulent Alicioglu, N. Yildirim","doi":"10.1109/MMW.2010.5605149","DOIUrl":"https://doi.org/10.1109/MMW.2010.5605149","url":null,"abstract":"Synthesis techniques are described for two different tunable microwave notch filter topologies with two resonators. Notch is obtained by first forming an All Pass circuit by cross-coupling input and output ports of either a BSF or a BPF with a transmission line and then detuning capacitors of the two resonators. The previous works on such designs were involving manual tuning and optimization. In this paper systematic design approaches are developed enabling the designer to get control of all the parameters affecting the responses. Both BSF and BPF approaches lead to realizable notch filter circuits having sharp and deep notches. It is shown that with this approach the stop bandwidth remains essentially constant over a broad tuning band while the notch depth is almost independent of the Q of resonators.","PeriodicalId":145274,"journal":{"name":"2010 10th Mediterranean Microwave Symposium","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121293881","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
Novel compact dual-and tri-band filters using stepped impedance resonators 采用阶跃阻抗谐振器的新型紧凑双带和三带滤波器
2010 10th Mediterranean Microwave Symposium Pub Date : 2010-10-18 DOI: 10.1109/MMW.2010.5605098
R. Moussa, M. Essaaidi, M. Aghoutane
{"title":"Novel compact dual-and tri-band filters using stepped impedance resonators","authors":"R. Moussa, M. Essaaidi, M. Aghoutane","doi":"10.1109/MMW.2010.5605098","DOIUrl":"https://doi.org/10.1109/MMW.2010.5605098","url":null,"abstract":"We present in this paper a novel approach for dual-and tri-band filters design with independently controlled center frequencies and bandwidths. On the one hand, a stepped impedance resonator (SIR) is designed to operate at the center frequencies of two bands simultaneously (dual-band), on the other hand, two stepped impedance resonators are designed to operate at the center frequencies of three bands simultaneously (tri-band). To verify the proposed approach two filters are designed and analyzed by using Sonnet and HFSS simulators, the obtained results using these two simulators are in very good agreement","PeriodicalId":145274,"journal":{"name":"2010 10th Mediterranean Microwave Symposium","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125960735","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
Autonomous use of fractal structure in low cost, multiband and compact navigational antenna 分形结构在低成本、多频带、紧凑型导航天线中的自主应用
2010 10th Mediterranean Microwave Symposium Pub Date : 2010-10-18 DOI: 10.1109/MMW.2010.5605206
R. Kanth, P. Liljeberg, H. Tenhunen, W. Ahmad, S. Shakya, Lirong Zheng
{"title":"Autonomous use of fractal structure in low cost, multiband and compact navigational antenna","authors":"R. Kanth, P. Liljeberg, H. Tenhunen, W. Ahmad, S. Shakya, Lirong Zheng","doi":"10.1109/MMW.2010.5605206","DOIUrl":"https://doi.org/10.1109/MMW.2010.5605206","url":null,"abstract":"Different fractal structures and their relevance in navigational antennas have been studied. Based on multiband characteristics and pe rformance of si erpinski gask et fr actal structures, a dual band, low profile antenna is devised in thi s paper. Cla ssical fra ctal st ructures h ave be en g enerated with extensive use of MATL AB, dime nsions o f the parasitic lay ers are determined v ia sev eral optimizations in Ma thCAD and finally design analysis is carried out using Ansoft Designer. The performance of this antenna is theoretically measured in terms of its return loss, gain radiation pattern and axial ratio. The multi layered physical antenna has been fabricated using glass epoxy substrate material contributing acceptable bandwidth in both bands. The measured performance of the fabricated antenna has been analyzed and evaluated with the theoretical outcomes.","PeriodicalId":145274,"journal":{"name":"2010 10th Mediterranean Microwave Symposium","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131388992","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: 9
Effect of Photonic Band Gap structure on Planar Antenna configuration 光子带隙结构对平面天线构型的影响
2010 10th Mediterranean Microwave Symposium Pub Date : 2010-10-18 DOI: 10.1109/MMW.2010.5605140
Navdeep Singh, Sarabjeet Singh, R. Sarin
{"title":"Effect of Photonic Band Gap structure on Planar Antenna configuration","authors":"Navdeep Singh, Sarabjeet Singh, R. Sarin","doi":"10.1109/MMW.2010.5605140","DOIUrl":"https://doi.org/10.1109/MMW.2010.5605140","url":null,"abstract":"This paper describes the effect of Photonic Band Gap (PBG) structure as ground plane coupled with defected ground plane on Planar Antenna using coplanar waveguide with improvement of bandwidth and return loss value of 50% (in case of array of 3 × 5 UC-PBG) and 6.45 dB at resonant frequency of 3.6 GHz and is used for WIMax band (3.3 GHz to 3.8GHz) for Wireless Local Area Network (WLAN) applications.","PeriodicalId":145274,"journal":{"name":"2010 10th Mediterranean Microwave Symposium","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115611654","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: 9
Optimum design of a modified 3-way Bagley rectangular power divider 改进的3路Bagley矩形功率分压器的优化设计
2010 10th Mediterranean Microwave Symposium Pub Date : 2010-10-18 DOI: 10.1109/MMW.2010.5605124
H. Oraizi, S. Ayati
{"title":"Optimum design of a modified 3-way Bagley rectangular power divider","authors":"H. Oraizi, S. Ayati","doi":"10.1109/MMW.2010.5605124","DOIUrl":"https://doi.org/10.1109/MMW.2010.5605124","url":null,"abstract":"A novel 3-way rectangular power divider is proposed which is a modified version of the Bagley power divider. The method of least squares is developed for its design and optimization, which determines the lines ection len gths and widths. The design specifications are made on the desired values of sc attering parameters, which tend to minimize the input reflection coefficient and realize the desired power division ratios. The propose d divide r c onfiguration and the optimum design procedure tend to maximize the isolation among the outputs.","PeriodicalId":145274,"journal":{"name":"2010 10th Mediterranean Microwave Symposium","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115695471","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: 25
A wireless microwave sensor for remote monitoring of heart and respiration activity 一种用于远程监测心脏和呼吸活动的无线微波传感器
2010 10th Mediterranean Microwave Symposium Pub Date : 2010-10-18 DOI: 10.1109/MMW.2010.5605157
S. Sadek, Lama Ghattas, Lama Fawaz
{"title":"A wireless microwave sensor for remote monitoring of heart and respiration activity","authors":"S. Sadek, Lama Ghattas, Lama Fawaz","doi":"10.1109/MMW.2010.5605157","DOIUrl":"https://doi.org/10.1109/MMW.2010.5605157","url":null,"abstract":"The aim of this paper is to present a new microwave contactless sensor for heartbeat and respiration activities. The system is operating on 9 GHz. It's composed of two parts: a hardware one based on Doppler radar with a Digital Multimeter, and a software one based on the acquisition of the signals and the separation of the 2 informations of heartbeat and respiratory signals using simple filtering method with Labview.","PeriodicalId":145274,"journal":{"name":"2010 10th Mediterranean Microwave Symposium","volume":"234 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116264621","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 a defected ground beam forming network 缺陷地波束形成网络的设计
2010 10th Mediterranean Microwave Symposium Pub Date : 2010-10-18 DOI: 10.1109/MMW.2010.5605169
O. Kilic, S. Demir
{"title":"Design of a defected ground beam forming network","authors":"O. Kilic, S. Demir","doi":"10.1109/MMW.2010.5605169","DOIUrl":"https://doi.org/10.1109/MMW.2010.5605169","url":null,"abstract":"This text presents the design of a novel, wideband beam forming network (BFN) realized by defected ground structure (DGS). The BFN is a corporate one with equi-phase and magnitude output ports. In a regular microstrip BFN design, non-standard, thin-and-thick lines are used together with the standard-width (50 Ω) lines for matching purposes. However, in this design, the BFN is implemented by using standard-width microstrip lines, and rectangular defects at the ground with a 0.508 mm-thick Rogers RO4003C substrate in between. Results of the simulation show that the designed structure is a wideband, equi-phase, and equi-magnitude BFN with at most 0.4 dB magnitude difference, and 4° phase difference in the 5.6 GHz–11.1 GHz band. The resulting structure is in a compact form with constant width line lengths on the upper side, and defects on the ground side. In order to avoid the radiation effects from the defect, another substrate of the same dielectric is also placed beneath the DGS.","PeriodicalId":145274,"journal":{"name":"2010 10th Mediterranean Microwave Symposium","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115478008","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 low wind load lightweight foldable / deployable base station antenna for Mobile TV, CDMA and GSM 用于移动电视、CDMA和GSM的低风荷载轻型可折叠/可展开基站天线
2010 10th Mediterranean Microwave Symposium Pub Date : 2010-10-18 DOI: 10.1109/MMW.2010.5605148
M. Sanad, N. Hassan
{"title":"A low wind load lightweight foldable / deployable base station antenna for Mobile TV, CDMA and GSM","authors":"M. Sanad, N. Hassan","doi":"10.1109/MMW.2010.5605148","DOIUrl":"https://doi.org/10.1109/MMW.2010.5605148","url":null,"abstract":"A low-coast, lightweight, low wind load, broadband, foldable / deployable base station antenna has been developed using dual parabolic cylindrical reflectors with a novel small size broadband feed. The new base station antenna is easy to assemble and disassemble. The parabolic cylindrical reflector surfaces are replaced by a group of narrow rectangular plane panels. The new feed antenna is linearly polarized. It can be easily modified in order to make it sensitive to two perpendicular polarizations. This can be achieved by combining two orthogonal antennas with a common feed point. Dual polarization can also be accomplished by using two orthogonal antennas with two different feeds for MIMO configurations. The new base station antenna covers a frequency band from 450 to 960 MHz with 72% bandwidth. It can cover the frequency bands of 450 and 700 MHz WiMax, UHF DVB-H, CDMA and GSM.","PeriodicalId":145274,"journal":{"name":"2010 10th Mediterranean Microwave Symposium","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123995124","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
Statistical analysis of real radiofrequencies exposure in a realistic environment 真实环境中真实射频暴露的统计分析
2010 10th Mediterranean Microwave Symposium Pub Date : 2010-10-18 DOI: 10.1109/MMW.2010.5605158
Z. Mahfouz, A. Gati, M. Wong, J. Wiart, D. Lautru, V. Hanna
{"title":"Statistical analysis of real radiofrequencies exposure in a realistic environment","authors":"Z. Mahfouz, A. Gati, M. Wong, J. Wiart, D. Lautru, V. Hanna","doi":"10.1109/MMW.2010.5605158","DOIUrl":"https://doi.org/10.1109/MMW.2010.5605158","url":null,"abstract":"In this paper, the general public daily exposure to radiofrequencies in indoor areas is investigated. The considered signals are FM, TV, and GSM over one day. The study focus on the determination of the distribution of FM, TV, and GSM signals in a realistic electromagnetic environment in Indoor distinguishing Urban and Rural locations. The goal is to analyze the real exposure compared to maximum assessment imposed by radio protection standards. 17 measurements in Urban and 6 measurements in Rural areas have been performed. A total of 145690 time samples per signal for Urban and 51420 time samples per signal for Rural were obtained from the measurement campaign.","PeriodicalId":145274,"journal":{"name":"2010 10th Mediterranean Microwave Symposium","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126055306","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
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