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2005 Asia-Pacific Microwave Conference Proceedings最新文献

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An ADI-FDTD algorithm in curvilinear coordinates 曲线坐标下的ADI-FDTD算法
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1606671
W. Song, Y. Hao, C. Parini
{"title":"An ADI-FDTD algorithm in curvilinear coordinates","authors":"W. Song, Y. Hao, C. Parini","doi":"10.1109/APMC.2005.1606671","DOIUrl":"https://doi.org/10.1109/APMC.2005.1606671","url":null,"abstract":"The alternating direction implicit scheme (ADI) has been successfully applied to finite-difference time-domain (FDTD) method to achieve an unconditionally stable algorithm. In this paper the ADI-FDTD method is extended to a conformal FDTD scheme in curvilinear coordinates. The effectiveness and accuracy of the proposed ADI-NFDTD is demonstrated.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132762180","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: 3
Conformal FDTD package development based on ACIS and HOOPS 基于ACIS和HOOPS的适形FDTD包开发
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1606950
Xiaoling Yang, Wenhua Yu, R. Mittra
{"title":"Conformal FDTD package development based on ACIS and HOOPS","authors":"Xiaoling Yang, Wenhua Yu, R. Mittra","doi":"10.1109/APMC.2005.1606950","DOIUrl":"https://doi.org/10.1109/APMC.2005.1606950","url":null,"abstract":"In this paper, we present one advanced technique that is applied to create a robust conformal FDTD software package based on two most popular development tools, namely, ACIS and HOOPS. We first introduce the basic features of ACIS and HOOPS, then describe the key techniques and structures used in the conformal FDTD package, and finally present two illustrative examples to validate the software package.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128814040","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
Analysis for arbitrary trapezoidal-groove guide with the method of moment 用矩量法分析任意梯形槽导轨
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1606340
Cheng Yinqin
{"title":"Analysis for arbitrary trapezoidal-groove guide with the method of moment","authors":"Cheng Yinqin","doi":"10.1109/APMC.2005.1606340","DOIUrl":"https://doi.org/10.1109/APMC.2005.1606340","url":null,"abstract":"Arbitrary trapezoidal groove guide is firstly analyzed by using method of moment and its eigenvalue equation and transmission characteristics are obtained and discussed. The work of this paper has important meaning in theoretical analysis and practical applications of groove guides for millimeter waves.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127398902","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
LCN for analysis of fractal Koch Yagi arrays 分形Koch八木阵列的LCN分析
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1606852
Shuguang Liu, Xiaojuan Zhang
{"title":"LCN for analysis of fractal Koch Yagi arrays","authors":"Shuguang Liu, Xiaojuan Zhang","doi":"10.1109/APMC.2005.1606852","DOIUrl":"https://doi.org/10.1109/APMC.2005.1606852","url":null,"abstract":"The local corrected Nystrom method is used to analyze line antenna arrays. General Yagi-Uda arrays and fractal Koch Yagi-Uda array antenna are analyzed in detail with this method. A comparison is made between them and these examples indicate the correctness of this method.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133822911","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
RF-SiP design and integration RF-SiP设计与集成
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1606517
B. Bagdasarian, J. Blonski, N. Karim, Jingkun Mao
{"title":"RF-SiP design and integration","authors":"B. Bagdasarian, J. Blonski, N. Karim, Jingkun Mao","doi":"10.1109/APMC.2005.1606517","DOIUrl":"https://doi.org/10.1109/APMC.2005.1606517","url":null,"abstract":"The requirement to modularize the cell phone and other handset devices was initially driven by the objective of simplifying the platform level development of the radio frequency section and of improving the high volume manufacturability. To facilitate the high paced demand for miniaturization and integration of the RF portion of the wireless subsystem, Amkor Technology and Intel Corporation have started to engage in using SiP (system in package) technology for new RF products. This initiated the development of a complete design chain flow involving package development using integrated and overmolded RF shielding, RF circuit design with integrated components, specialized testing, and assembly processes. Both parties have aligned their efforts to continually optimize their respective RF-SiP designs. Both parties' system engineers, circuit designers, RF silicon engineers, layout specialists, RF test engineers, and manufacturing teams have engaged to work together in an optimized design environment. The SiP design team was challenged with miniaturization, cost reductions, performance enhancements, high volume manufacturability, and shortened design cycles. This paper provides an overall RF subsystem high level overview and it discusses in detail the frequency domain response of embedded passive filters in a multilayer low cost organic substrate. It also illustrates how the measured data is combined with accurate full wave 3D simulation, for enhanced tool calibration and design optimization.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115442558","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
A novel broadband high-power combiner 一种新型宽带大功率合成器
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1607113
Q. Guo, Yanjun Ma, Jilong Ju
{"title":"A novel broadband high-power combiner","authors":"Q. Guo, Yanjun Ma, Jilong Ju","doi":"10.1109/APMC.2005.1607113","DOIUrl":"https://doi.org/10.1109/APMC.2005.1607113","url":null,"abstract":"A novel high-power combiner/divider with compensation circuit is presented in this paper. The isolating resistor between two dividing ports in conventional Wilkinson power divider is replaced by a structure of coax balun transformer. With this coaxial structure, the bandwidth of this novel combiner is three times wider than a conventional one. It can be used in broadband and high-power combination. Simulation results of the conventional Wilkinson combiner, a bisection combiner and the novel combiner are given and compared in this paper.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115801480","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
A novel 2.4GHz LNA with digital gain control using 0.18/spl mu/m CMOS 采用0.18/spl mu/m CMOS的新型2.4GHz数字增益控制LNA
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1606500
Kuo-Hua Cheng, C. Jou
{"title":"A novel 2.4GHz LNA with digital gain control using 0.18/spl mu/m CMOS","authors":"Kuo-Hua Cheng, C. Jou","doi":"10.1109/APMC.2005.1606500","DOIUrl":"https://doi.org/10.1109/APMC.2005.1606500","url":null,"abstract":"This paper presents a novel gain control method for 2.4 GHz LNA applications. In this design, a digital mode gain control concept was implemented. This chip can accept an appropriate control bit that come from base band to achieve power saving. With digital mode gain control to achieve low noise and high 1dB compression point simultaneously without increasing any circuit and power consumption. Depend on receiving signal strength, there are four gain modes can be selecting automatically. The compact CMOS LNA is optimized for low-power-consuming ISM band applications and is fabricated using commercial 0.18/spl mu/m CMOS process. With current re-use technology, the power consumption and linearity can be optimizing. The fully integrated 2.4GHz gain controllable LNA exhibits 15.2dB maximum gain, 4.1dB minimum gain, respectively. Also, the LNA has excellent noise performance at high gain mode; 1.55dB of noise figure is achieved in this work. The digital modes gain controllable LNA produces a 1-dB compression output power of -10 dBm. It consumes 2.5mA current from a supply voltage of 1.8V.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115900254","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
Power distribution and profile of antenna arrays for high altitude platforms cellular communications 高空蜂窝通信平台天线阵列的功率分配和外形
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1606684
H. Sharshar
{"title":"Power distribution and profile of antenna arrays for high altitude platforms cellular communications","authors":"H. Sharshar","doi":"10.1109/APMC.2005.1606684","DOIUrl":"https://doi.org/10.1109/APMC.2005.1606684","url":null,"abstract":"High altitude platforms (HAPs) opens a great way for extended and new communication services that cannot be supported by terrestrial or satellite-based systems. One major factor that affects the system performance is the power distribution within a HAP cell, therefore this paper is dedicated for the analysis of power distribution and profile when using antenna arrays in the radio coverage. An expression defining the power profile parameter and the cochannel interference ratio between cochannel cells is also shown.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124550997","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
Sophisticated numerical hybrid scattering analysis integrated into system simulations for navigation and radar applications 复杂的数值混合散射分析集成到导航和雷达应用的系统模拟中
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1606929
G. Greving
{"title":"Sophisticated numerical hybrid scattering analysis integrated into system simulations for navigation and radar applications","authors":"G. Greving","doi":"10.1109/APMC.2005.1606929","DOIUrl":"https://doi.org/10.1109/APMC.2005.1606929","url":null,"abstract":"Classical and modern navigation, landing and radar systems rely on the radio transmission and reception. Relevant objects in the radiation field can harm the intended characteristics of these systems. Modern state-of-the-art simulations can predict in an increasing number of complicated cases the electrical performance in the presence of these objects. Countermeasures can be designed from this knowledge. This paper deals mainly with the \"threat\" (potentially in-acceptable distortions) by the forthcoming new large aircraft A380 on the widely spread ILS (instrument landing system; operating at 110/330MHz) installed on every major airport. The related system simulations and the mathematical and numerical analyses are outlined and some results for different numerical cases are presented. It is in particular emphasized to apply 3D and sophisticated state-of-the-art methods which are adapted to the 3D characteristics of the objects in contrast to inadequately simple methods. For the case of the new Airbus A380 some principle results are presented using simple physical optics based methods, trials to improve the simple PO by creating \"fudge factors\" by measurements and in contrast results for rigorous and quasi-rigorous numerical methods. Large errors for a simple physical optics PO treatment in contrast to the rigorous method-of-moments MoM and improved physical optics IPO solution are presented and explained. The practical consequences for airports illustrate the necessity of reliable state-of-the-art system simulations and the application of advanced electromagnetic scattering analysis.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114910258","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 theoretical comparison between MMIC distributed and matrix amplifiers MMIC分布放大器与矩阵放大器的理论比较
2005 Asia-Pacific Microwave Conference Proceedings Pub Date : 2005-12-04 DOI: 10.1109/APMC.2005.1606604
E. Hamidi, M. M. Taheri
{"title":"A theoretical comparison between MMIC distributed and matrix amplifiers","authors":"E. Hamidi, M. M. Taheri","doi":"10.1109/APMC.2005.1606604","DOIUrl":"https://doi.org/10.1109/APMC.2005.1606604","url":null,"abstract":"A theoretical comparison is made between the performance of the MMIC matrix and distributed amplifiers. It has been shown that based on the theoretical formulations, in some typical cases there is no noticeable difference between the gain of a matrix amplifier and that of cascaded distributed amplifiers with the same number of stages.","PeriodicalId":253574,"journal":{"name":"2005 Asia-Pacific Microwave Conference Proceedings","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115067570","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
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