Minghua Zhao, Yong Fan, Yonghong Zhang, Chengcheng Xie, J. Zhan
{"title":"A Nonlinear Circuit Model for Avalanche Diode in High Order Frequency Multiplication Mode","authors":"Minghua Zhao, Yong Fan, Yonghong Zhang, Chengcheng Xie, J. Zhan","doi":"10.1109/ICMMT.2007.381433","DOIUrl":"https://doi.org/10.1109/ICMMT.2007.381433","url":null,"abstract":"A nonlinear circuit model for avalanche diode is described in high order frequency multiplication mode. Based on the physical mechanism of avalanche diode, this model interprets the nonlinear harmonics character of avalanche effects. The simulation of nonlinear model predicts the high order harmonics generation capabilities of avalanche diodes. This prediction has been demonstrated by experimental results.","PeriodicalId":409971,"journal":{"name":"2007 International Conference on Microwave and Millimeter Wave Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134046630","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}
{"title":"RC Interconnect Model Order Reduction with Truncation Balanced Reduction","authors":"Yang Dongsheng, Zhan Lei, Fan Jianwei","doi":"10.1109/ICMMT.2007.381407","DOIUrl":"https://doi.org/10.1109/ICMMT.2007.381407","url":null,"abstract":"Interconnect becomes one of the major factors of today's VLSI circuit design. Its modeling and simulation are becoming more challenging and very difficult. This paper describes the truncation balanced reduction (TBR) algorithms in the model reduction of RC interconnect. Simulation is executed to RC interconnect and may be improve VLSI interconnect system modeling and design technology.","PeriodicalId":409971,"journal":{"name":"2007 International Conference on Microwave and Millimeter Wave Technology","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131991154","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}
{"title":"The Design of a Planar-Spiral Transformers Balun Used in RF/MW Based on 0.13 μm CMOS Process","authors":"Jie Wang, Wenjun Zhang, Zhiping Yu","doi":"10.1109/ICMMT.2007.381403","DOIUrl":"https://doi.org/10.1109/ICMMT.2007.381403","url":null,"abstract":"The design of a broadband monolithic passive balun using planar-spiral transformers structure is described. Operational frequencies of the range from 15 GHz to 35 GHz and the center frequency is 23.3 GHz. The performance of the balun is simulated, and the results are: the single port power loss (port-to-port conversion loss) is less than 7 dB. The amplitude and phase unbalance are less than 0.5 dB and 5° , respectively, over 16-30 GHz frequency band.","PeriodicalId":409971,"journal":{"name":"2007 International Conference on Microwave and Millimeter Wave Technology","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114533409","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}
{"title":"Computationally-efficient two Stage Hybrid approach for STAP in nonhomogeneous environment","authors":"Bin Tang, Xue-gang Wang","doi":"10.1109/ICMMT.2007.381285","DOIUrl":"https://doi.org/10.1109/ICMMT.2007.381285","url":null,"abstract":"The nonhomogeneous nature of the clutter environment and the deficiency of sample support often result in severely degraded detection performance. This paper presents a new two stage hybrid approach to the cancellation of clutter echoes in modern AEW radar systems equipped with digital beamforming. Since the new scheme requires a limited computational load, compared to the original two stage hybrid approach, the proposed scheme can be regarded as practical solutions for robust and effective STAP of nonhomogeneous radar data.","PeriodicalId":409971,"journal":{"name":"2007 International Conference on Microwave and Millimeter Wave Technology","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129111985","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}
{"title":"The Study of Practical Logarithmic Detectors using Edgeworth Series Expansion","authors":"Jun Wang, Yinan Zhao, X. Qiao","doi":"10.1109/ICMMT.2007.381516","DOIUrl":"https://doi.org/10.1109/ICMMT.2007.381516","url":null,"abstract":"Characteristics of practical logarithmic detectors are investigated and the moments and cumulants of this type detector are determined. The integration PDF for n pulses at the output of this type detector in Rayleigh interference is approximated with Edgeworth series expansion. The accuracy of this series expansion can be controlled because of its convergence property.","PeriodicalId":409971,"journal":{"name":"2007 International Conference on Microwave and Millimeter Wave Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134105021","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}
Bin Li, Zhonghai Yang, Jianqing Li, Xiaofang Zhu, Tao Huang, Q. Hu, Yu-Lu Hu, P. Gao, Li Liao, Liyi Xiao, GuoXian He
{"title":"Introduction to MICROWAVE TUBE SIMULATOR SUITE","authors":"Bin Li, Zhonghai Yang, Jianqing Li, Xiaofang Zhu, Tao Huang, Q. Hu, Yu-Lu Hu, P. Gao, Li Liao, Liyi Xiao, GuoXian He","doi":"10.1109/ICMMT.2007.381354","DOIUrl":"https://doi.org/10.1109/ICMMT.2007.381354","url":null,"abstract":"Microwave tube simulator suite (MTSS), tools for microwave tube design, will be presented. It includes a front-end and three solvers now. All codes are finished and validation of this suite is under running.","PeriodicalId":409971,"journal":{"name":"2007 International Conference on Microwave and Millimeter Wave Technology","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132301793","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}
{"title":"Implementation of An efficient Hybrid Method for the Analysis of Inaterference in High Frequency Circuits","authors":"M. Bahadorzadeh, R. Sadeghzadeh, M. N. Moghaddasi","doi":"10.1109/ICMMT.2007.381377","DOIUrl":"https://doi.org/10.1109/ICMMT.2007.381377","url":null,"abstract":"A new Method for analysis of interference in high frequency has been used for evaluation of the interference of two loop antennas. The method is based on the transmission line matrix (TLM) method augmented with a time- domain integral equation formulation to account for the radiation of equivalent sources and to evaluate the interfering electromagnetic fields. A comparison between this method which is referred as the IRIS method (interference and radiation of internal surfaces) and different approaches for the analysis of interference has been performed . The result of classical TLM analysis and the IRIS method analysis for Interfering of loop antennas has been represented.","PeriodicalId":409971,"journal":{"name":"2007 International Conference on Microwave and Millimeter Wave Technology","volume":"11626 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132655195","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}
{"title":"A New Dielectric Grating Antenna for Millimeter-Wave Applications","authors":"Y. Pan, S.J. Xu","doi":"10.1109/ICMMT.2007.381272","DOIUrl":"https://doi.org/10.1109/ICMMT.2007.381272","url":null,"abstract":"The leakage properties of a new dielectric grating leaky wave antenna are carefully examined by an approach of combining the multimode network theory with the mode-matching method. A systematic comparison is given for the leaky characteristics of the n=-1 space harmonic of TM mode polarization between the present antenna and the traditional one. It has been found that the former not only has the advantage of lower conductor loss, but also is of larger leakage constant than the latter. As a result, the dimension of the antenna could be largely reduced, which is of practical significance for some applications. Extensive numerical results of the radiation characteristics are given to establish useful guidelines for the design of the new grating antenna. Furthermore, special features such as cancellation or resonance effects are high-lighted and discussed. Physical insights for the mathematical findings are also presented.","PeriodicalId":409971,"journal":{"name":"2007 International Conference on Microwave and Millimeter Wave Technology","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117201656","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}
{"title":"An Improved Design Method for UWB Filter Using Two-Section Open-Circuited Stubs","authors":"Xun Gong, Jun Wang, Weidong Wang","doi":"10.1109/ICMMT.2007.381424","DOIUrl":"https://doi.org/10.1109/ICMMT.2007.381424","url":null,"abstract":"Piecewise-frequency approximation method for complex distribution parameter structure is proposed. By using this method, two-section open-circuited stub of non-equal length is analyzed. And a UWB bandpass filter is designed based on the analysis. Measurements verify the design process.","PeriodicalId":409971,"journal":{"name":"2007 International Conference on Microwave and Millimeter Wave Technology","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121995613","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}
Cheng Chun-yue, Wang Qiang, Xu De-zhong, Chen Yun-mei
{"title":"Design and emissivity meterage of 3mm microwave blackbody","authors":"Cheng Chun-yue, Wang Qiang, Xu De-zhong, Chen Yun-mei","doi":"10.1109/ICMMT.2007.381365","DOIUrl":"https://doi.org/10.1109/ICMMT.2007.381365","url":null,"abstract":"The configuration design and the meterage data of 3 mm microwave blackbody are presented. The blackbody can be used in 75 GHz to 110 GHz or higher frequency and its emissivity is more than 0.996. Because the emissivity of microwave blackbody is close to one, namely its reflectance almost equals zero, the directivity error of directional coupler and the antenna reflection will make it is difficult to measure the emissivity directly. Hence, we use the space reflection method of moving DUT to measure reflectance of microwave blackbody. In this method, the reflectance of measurement system is equivalent to a big stationary wave and the reflectance of black body is equivalent to a small stationary wave. By using moving blackbody, we can separate the two stationary waves. The emissivity of blackbody is given by friis formula including some near field parameters. The measurement results are presented in section 5.","PeriodicalId":409971,"journal":{"name":"2007 International Conference on Microwave and Millimeter Wave Technology","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116396663","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}