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2008 International Conference on Microwave and Millimeter Wave Technology最新文献

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A novel metamaterial-inspired electrically small antenna fed by CPW 一种由CPW馈入的新型超材料启发电小天线
2008 International Conference on Microwave and Millimeter Wave Technology Pub Date : 2008-04-21 DOI: 10.1109/ICMMT.2008.4540771
M. Li, X. Lin, J. Y. Chin, Ruopeng Liu, T. Cui
{"title":"A novel metamaterial-inspired electrically small antenna fed by CPW","authors":"M. Li, X. Lin, J. Y. Chin, Ruopeng Liu, T. Cui","doi":"10.1109/ICMMT.2008.4540771","DOIUrl":"https://doi.org/10.1109/ICMMT.2008.4540771","url":null,"abstract":"This article presents the design of an inexpensive, efficient, and electrically small antenna based on metamaterial- inspired structure fed by the coplanar waveguide (CPW). The size of the proposed antenna is 12 mm x 12 mm with the resonant frequency of 1.47 GHz. Details of the proposed antenna are presented, with full-wave simulation results to support the design.","PeriodicalId":315133,"journal":{"name":"2008 International Conference on Microwave and Millimeter Wave Technology","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132183792","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
Study on microwave attenuation performance of MgO-Mg2SiO4 lossy ceramics MgO-Mg2SiO4损耗陶瓷微波衰减性能研究
2008 International Conference on Microwave and Millimeter Wave Technology Pub Date : 2008-04-21 DOI: 10.1109/ICMMT.2008.4540901
Xiaoyun Li, Yong Fang, T. Qiu
{"title":"Study on microwave attenuation performance of MgO-Mg2SiO4 lossy ceramics","authors":"Xiaoyun Li, Yong Fang, T. Qiu","doi":"10.1109/ICMMT.2008.4540901","DOIUrl":"https://doi.org/10.1109/ICMMT.2008.4540901","url":null,"abstract":"MgO-Mg2SiO4 composites were manufactured by hot pressing with the objective of producing electromagnetically lossy materials in the 8-12 GHz region. The effect of MgO content on microwave attenuation performance was studied with network analyzer. The result shows that the resonant frequencies become lower while increasing the content of MgO. The characteristics of microwave attenuation spectrum of the composites were analyzed by resonant-cavity theory and the result indicates that the resonant frequencies of the composites depend on their relative permittivities which can be measured by reflection-transition method. The permittivities measured agree well with the relative values calculated by resonant-cavity theory. The mechanisms of microwave attenuation were discussed.","PeriodicalId":315133,"journal":{"name":"2008 International Conference on Microwave and Millimeter Wave Technology","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130243243","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 novel broadband EBG using multi-period mushroom-like structure 一种新型多周期蘑菇状结构宽带脑电图
2008 International Conference on Microwave and Millimeter Wave Technology Pub Date : 2008-04-21 DOI: 10.1109/ICMMT.2008.4540770
L. Liang, C. Liang, X. Zhao, Z. Su
{"title":"A novel broadband EBG using multi-period mushroom-like structure","authors":"L. Liang, C. Liang, X. Zhao, Z. Su","doi":"10.1109/ICMMT.2008.4540770","DOIUrl":"https://doi.org/10.1109/ICMMT.2008.4540770","url":null,"abstract":"A novel broadband electromagnetic band-gap (EBG) structure is presented using multi-period mushroom-like structure with different patch size cascaded. Direct transmission method is used to determine the band-gap of the EBG structure. The effects of the unit number and patch size on the mushroomlike EBG structure are investigated. Two kinds of unit with different patch size are cascaded to enlarge the band-gap of EBG structure, which achieves almost 87.1%. The simulation results show that the band-gap almost covers the stop-band produced by the two uniform configurations with different patch size respectively.","PeriodicalId":315133,"journal":{"name":"2008 International Conference on Microwave and Millimeter Wave Technology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130282613","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: 24
A millimeter-wave conical conformal low sidelobe microstrip antenna array 一种毫米波锥形共形低旁瓣微带天线阵列
2008 International Conference on Microwave and Millimeter Wave Technology Pub Date : 2008-04-21 DOI: 10.1109/ICMMT.2008.4540831
Min Liu, Zi-Rui Feng, Kuang Zhang, Qun Wu
{"title":"A millimeter-wave conical conformal low sidelobe microstrip antenna array","authors":"Min Liu, Zi-Rui Feng, Kuang Zhang, Qun Wu","doi":"10.1109/ICMMT.2008.4540831","DOIUrl":"https://doi.org/10.1109/ICMMT.2008.4540831","url":null,"abstract":"Design of a millimeter-wave conformal low sidelobe microstrip patch antenna 1times8 elements array on a cone surface is presented. The hemline feed method (HFM) is used to design the patch element. This kind of elements and parallel feed network is used for forming the conformal low sidelobe microstrip array based on the design principle of Dolph-Chebyshev distribution and T-junction power divider. The radiation features of the array are discussed to illuminate the realization of a low sidelobe level (-30.5 dB) of the array. Simulations by the CST MICROWAVE STUDIO are given to verify this present design.","PeriodicalId":315133,"journal":{"name":"2008 International Conference on Microwave and Millimeter Wave Technology","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131712060","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
Wideband subharmonic mixer in bilateral finline at U-band u波段双边鳍线宽带次谐波混频器
2008 International Conference on Microwave and Millimeter Wave Technology Pub Date : 2008-04-21 DOI: 10.1109/ICMMT.2008.4540534
Yuliang Dong, Rui Bai, Jun Xu, L. Xue
{"title":"Wideband subharmonic mixer in bilateral finline at U-band","authors":"Yuliang Dong, Rui Bai, Jun Xu, L. Xue","doi":"10.1109/ICMMT.2008.4540534","DOIUrl":"https://doi.org/10.1109/ICMMT.2008.4540534","url":null,"abstract":"A wideband subharmonically pumped mixer is presented and demonstrated at U-band. A wide bandwidth from 40 to 60 GHz is achieved by asymmetric bilateral finline and a pair of anti-parallel diodes. The local oscillator signal passes through a novel microstrip-to-finline transition to the bilateral finline, which is helpful to impedance match. The transition structure enables the mixer to conveniently integrate with monolithic microwave integrated circuits (MMIC). The compact subharmonic mixer is fabricated on 0.254 mm thick Rogers Duroid 5880 substrate, which is suspended in the E-plane of a standard rectangular waveguide WR-19. Measurement result shows its conversion loss is less than 15 dB from 40 to 60 GHz. The isolations between each port are higher than 40 dB.","PeriodicalId":315133,"journal":{"name":"2008 International Conference on Microwave and Millimeter Wave Technology","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129034022","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
Beam decomposition algorithm and its application to the pulse quasi-beam scattering from two dimensional rough surfaces 光束分解算法及其在二维粗糙表面脉冲准光束散射中的应用
2008 International Conference on Microwave and Millimeter Wave Technology Pub Date : 2008-04-21 DOI: 10.1109/ICMMT.2008.4540577
L. Guo, Y.C. Ren
{"title":"Beam decomposition algorithm and its application to the pulse quasi-beam scattering from two dimensional rough surfaces","authors":"L. Guo, Y.C. Ren","doi":"10.1109/ICMMT.2008.4540577","DOIUrl":"https://doi.org/10.1109/ICMMT.2008.4540577","url":null,"abstract":"In this paper, we apply a non-conventional beam decomposition algorithm to calculate the temporal scattered field from a moderate two-dimensional rough surface. This algorithm is fairly attractive in terms of computational features when compared with the full wave rigorous solvers.","PeriodicalId":315133,"journal":{"name":"2008 International Conference on Microwave and Millimeter Wave Technology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129236869","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
Research on dual polarization wideband antenna 双极化宽带天线的研究
2008 International Conference on Microwave and Millimeter Wave Technology Pub Date : 2008-04-21 DOI: 10.1109/ICMMT.2008.4540842
Ying Suo, J. Qiu, Yeshu Yuan
{"title":"Research on dual polarization wideband antenna","authors":"Ying Suo, J. Qiu, Yeshu Yuan","doi":"10.1109/ICMMT.2008.4540842","DOIUrl":"https://doi.org/10.1109/ICMMT.2008.4540842","url":null,"abstract":"A wideband microstrip antenna with dual polarization character operated in mobile communication system is researched. In this paper, the structure of overhang parasitic patch is adopted to widen the band, and the slot structure of T type is applied to increase isolation. By simulation and optimization, the microstrip antenna can realize the characters mentioned above, and the gain can get 8.5 dB at the band of 1710~2170 MHz. So the simulation result presented can satisfy some practical operation.","PeriodicalId":315133,"journal":{"name":"2008 International Conference on Microwave and Millimeter Wave Technology","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125558845","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
Micro-cantilever array and its application in gas sensor 微悬臂阵列及其在气体传感器中的应用
2008 International Conference on Microwave and Millimeter Wave Technology Pub Date : 2008-04-21 DOI: 10.1109/ICMMT.2008.4540745
Wu Pan, Ning Li
{"title":"Micro-cantilever array and its application in gas sensor","authors":"Wu Pan, Ning Li","doi":"10.1109/ICMMT.2008.4540745","DOIUrl":"https://doi.org/10.1109/ICMMT.2008.4540745","url":null,"abstract":"Micro-cantilever array was made by micromachining technology. Its mechanical characteristic was analyzed. A gas sensor based micro-cantilever array was presented. The different material sensing layers were fabricated on the different micro-cantilever surface respectively; the physical or chemical absorption alters the mass of micro-cantilever, accordingly, the mechanical characteristic of micro-cantilever was changed. The vibration characteristics of beam array and its changes were measured by optoelectronic means. The component of mixed gas was identified by neural network and pattern recognition technologies. The micro-cantilever array gas sensor was examined by using ethanol (C2H5OH), natural gas and butane (C4H10). The experiment results of the gas sensor were obtained.","PeriodicalId":315133,"journal":{"name":"2008 International Conference on Microwave and Millimeter Wave Technology","volume":"200 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123019719","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
A measure of mobility for evaluating mobile ad hoc network performance 用于评估移动自组织网络性能的移动性度量
2008 International Conference on Microwave and Millimeter Wave Technology Pub Date : 2008-04-21 DOI: 10.1109/ICMMT.2008.4540740
Linna He, Wei Yin
{"title":"A measure of mobility for evaluating mobile ad hoc network performance","authors":"Linna He, Wei Yin","doi":"10.1109/ICMMT.2008.4540740","DOIUrl":"https://doi.org/10.1109/ICMMT.2008.4540740","url":null,"abstract":"The performance of a mobile ad hoc network (MANET) is related to the efficiency of the routing protocol in adapting to changes in the network topology and the link status. However, the use of many different mobility models without a unified quantitative \"measure\" of the mobility has made it very difficult to compare the results of independent performance studies of routing protocols. In this paper, a mobility measure for MANETs is proposed that is flexible and consistent. One can customize the definition of mobility using a remoteness function. It has a linear relationship with the rate at which links are established or broken for a wide range of network scenarios. This consistency is the strength of the proposed mobility measure because the mobility measure reliably represents the link change rate regardless of network scenarios.","PeriodicalId":315133,"journal":{"name":"2008 International Conference on Microwave and Millimeter Wave Technology","volume":"2 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126103943","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
Fourier split-step parabolic equation solution of wave propagation over forest edge 森林边缘波传播的傅立叶分步抛物方程解
2008 International Conference on Microwave and Millimeter Wave Technology Pub Date : 2008-04-21 DOI: 10.1109/ICMMT.2008.4540584
Jianyan Guo, Jianying Wang, Peng Liu, Y. Long
{"title":"Fourier split-step parabolic equation solution of wave propagation over forest edge","authors":"Jianyan Guo, Jianying Wang, Peng Liu, Y. Long","doi":"10.1109/ICMMT.2008.4540584","DOIUrl":"https://doi.org/10.1109/ICMMT.2008.4540584","url":null,"abstract":"Analysis of the wave propagation over forest edge with Fourier split-step parabolic equation is presented. The terrain is approximated by piecewise linear segments to simplify implementation of boundary condition. The predicted propagation over forest edge in fir forest environment is compared with measurements, good agreement is reported and the rms error is analyzed.","PeriodicalId":315133,"journal":{"name":"2008 International Conference on Microwave and Millimeter Wave Technology","volume":"47 20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114166838","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
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