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2003 33rd European Microwave Conference, 2003最新文献

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A circuit prototype for the design of side and in-line coupled cavity filters in waveguide 一种设计波导侧腔和内腔耦合滤波器的电路原型
2003 33rd European Microwave Conference, 2003 Pub Date : 2003-10-01 DOI: 10.1109/EUMA.2003.340876
A. Morini, G. Venanzoni, N. Iliev, T. Rozzi, G. Cereda, B. Gabbrielli
{"title":"A circuit prototype for the design of side and in-line coupled cavity filters in waveguide","authors":"A. Morini, G. Venanzoni, N. Iliev, T. Rozzi, G. Cereda, B. Gabbrielli","doi":"10.1109/EUMA.2003.340876","DOIUrl":"https://doi.org/10.1109/EUMA.2003.340876","url":null,"abstract":"This paper presents a new circuit prototype suitable for modelling filters of the topology shown on fig. 1, where cavities are coupled to each other either by in-line or side elements. The parameters of the new prototype are explicitly derived from those of a standard in-line filter, which is assumed as reference. The new configuration maintains same response, while the correspondence between circuit parameters and physical structure is one-to-one and of immediate interpretation. A practical example shows the usefulness and accuracy of the proposed prototype.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115706014","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
Multi-Waveform SFCW radar 多波形SFCW雷达
2003 33rd European Microwave Conference, 2003 Pub Date : 2003-10-01 DOI: 10.1109/EUMA.2003.341086
P. Genderen
{"title":"Multi-Waveform SFCW radar","authors":"P. Genderen","doi":"10.1109/EUMA.2003.341086","DOIUrl":"https://doi.org/10.1109/EUMA.2003.341086","url":null,"abstract":"A Stepped Frequency Continuous Wave radar for detecting flush buried and surface laid anti personnel landmines was designed and built. The system covers a frequency band from 400 MHz up to 4845 MHz. The range resolution is 3.4 cm and the maximum unambiguous range is 4.3 m. The antenna set up is a bi-static one with two Archimedean spirals with opposite sense of rotation. A particular property of the radar is that it transmits and receives a set of eight frequencies at the same time. The system parameters are particularly aimed at imaging algorithms exploiting the phase evolution over the antenna footprint. An example of the result achieved after Synthetic Aperture Radar processing is presented.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114150658","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 Design of Predistortion Linearizer using 2nd Order Low Frequency Intermodulation Signal Injection 基于二阶低频互调信号注入的预失真线性器设计
2003 33rd European Microwave Conference, 2003 Pub Date : 2003-10-01 DOI: 10.1109/EUMA.2003.340937
Young-Pil Kwon, Y. Jeong, Y. Kim, C. Kim
{"title":"A Design of Predistortion Linearizer using 2nd Order Low Frequency Intermodulation Signal Injection","authors":"Young-Pil Kwon, Y. Jeong, Y. Kim, C. Kim","doi":"10.1109/EUMA.2003.340937","DOIUrl":"https://doi.org/10.1109/EUMA.2003.340937","url":null,"abstract":"This paper presents a new predistortion methods which injects the 2nd order low frequency intermodulation signal of RF signal into the input bias line of the amplifier. We show this technique can suppress the 3rd IM and the 5th IM apparently by adjusting 2 factors, phase and amplitude, through mathematical analysis, and then confirm it with simulation. And we design digital cellular amplifier to show variation of the optimal performance without additional circuits or controls for the operating range. When the input signal CDMA IS-95 1FA was applied, measured ACPR improvements were 25dBc, 22.5dBc, and 6dBc at 0.855MHz, 1.25MHz, and 2.25MHz offset respectively. Also, when applying the CDMA IS-95 3FA, the measured ACPR improvement showed 16dBc at 0.885MHz offset.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114276894","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 Hybrid FDTD/Quasistatic Technique for the Accurate Modeling of Complex Integrated Structures Including Effects of Lossy Metals 含金属损耗的复杂集成结构精确建模的FDTD/准静态混合技术
2003 33rd European Microwave Conference, 2003 Pub Date : 2003-10-01 DOI: 10.1109/EUMA.2003.340957
E. Dalton, M. Kunze, W. Heinrich, M. Tentzeris
{"title":"A Hybrid FDTD/Quasistatic Technique for the Accurate Modeling of Complex Integrated Structures Including Effects of Lossy Metals","authors":"E. Dalton, M. Kunze, W. Heinrich, M. Tentzeris","doi":"10.1109/EUMA.2003.340957","DOIUrl":"https://doi.org/10.1109/EUMA.2003.340957","url":null,"abstract":"This paper presents a method of coupling a quasistatic field solver with the finite-difference time-domain method for the more efficient modeling of multilayer packaging structures including metal and dielectric loss effects. Lossy metal characteristics are first simulated with a dense quasistatic grid and the resulting field correction factors are then used to enhance the accuracy of a much coarser FDTD mesh.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115512152","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
A Method for Design of Digital Beamformer with Prescribed Main Beam Width and Sidelobe Level 一种规定主波束宽度和旁瓣电平的数字波束形成器设计方法
2003 33rd European Microwave Conference, 2003 Pub Date : 2003-10-01 DOI: 10.1109/EUMA.2003.341071
T. Do-Hong, P. Russer
{"title":"A Method for Design of Digital Beamformer with Prescribed Main Beam Width and Sidelobe Level","authors":"T. Do-Hong, P. Russer","doi":"10.1109/EUMA.2003.341071","DOIUrl":"https://doi.org/10.1109/EUMA.2003.341071","url":null,"abstract":"This paper presents a new method for design of digital beamfomer with prescribed main beam width and sidelobe level using uniform linear array. The method provides for the specification of narrow beam width, while at the same time allowing for the specification of low sidelobe level. In addition, by employing spatial interpolation at digital signal processing section, the number of antenna elements and the corresponding RF modules, A/D converters etc. are significantly reduced, while still retaining same main beam width and sidelobe level as the traditional beamforming method that requires larger number of elements. Illustrative example which demonstrates the design of new method is included.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124504508","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
Symmetric and Asymmetric Two-Hemidisk Quasi-Optical Dielectric Resonators 对称和非对称双半圆盘准光介质谐振器
2003 33rd European Microwave Conference, 2003 Pub Date : 2003-10-01 DOI: 10.1109/EUMA.2003.341151
N. Cherpak, A. A. Lavrinovich, E. Shaforost
{"title":"Symmetric and Asymmetric Two-Hemidisk Quasi-Optical Dielectric Resonators","authors":"N. Cherpak, A. A. Lavrinovich, E. Shaforost","doi":"10.1109/EUMA.2003.341151","DOIUrl":"https://doi.org/10.1109/EUMA.2003.341151","url":null,"abstract":"Quasi-optical dielectric resonators in the form of two hemidisks with a diametric slot between them are proposed. Such resonators keep the conditions for propagation of the whispering gallery mode waves. The resonators with one- and two-side displacement of the dielectric samples in the slot (asymmetric and symmetric resonators) are studied. The results of the frequency spectrum measurements in K-band are presented and discussed.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121559398","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
MEMS near-DC to RF capacitive series switches MEMS近直流到射频电容串联开关
2003 33rd European Microwave Conference, 2003 Pub Date : 2003-10-01 DOI: 10.1109/EUMA.2003.341126
X. Rottenberg, J. Geerlings, R. Mertens, B. Nauwelaers, W. De Raedt, H. Tilmans
{"title":"MEMS near-DC to RF capacitive series switches","authors":"X. Rottenberg, J. Geerlings, R. Mertens, B. Nauwelaers, W. De Raedt, H. Tilmans","doi":"10.1109/EUMA.2003.341126","DOIUrl":"https://doi.org/10.1109/EUMA.2003.341126","url":null,"abstract":"This paper presents a novel type of RF-MEMS capacitive series switch. Its insertion loss and isolation can be separately optimised. Moreover, its actual performances closely fit the theoretical characteristics allowing an accurate and precise design. We will present electromechanical and high frequency simulations as well as C-V and S-parameters measurements clearly showing the improved characteristics of the new \"boosted switch\". We demonstrate the design flexibility, e.g. arbitrary and precise choice of the up- and down-capacitances in the respective ranges [0.1-0.3pF] and [1-30pF]. Insertion Loss lower than 0.3dB (including 1 ¿m thick, 2*400¿m long Al feeding line losses) and Isolation higher than 10dB in the frequency range 1-10GHz have been measured. The capacitance ratio Cdown/Cup, fixed at 11 for the conventional design in our technology, has been boosted up to 600 with the new structure using the same materials and comparable dimensions.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125547808","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
Active load pull with fourth harmonic tuning based on an IQ modulator concept 基于IQ调制器概念的四次谐波有源负载牵引
2003 33rd European Microwave Conference, 2003 Pub Date : 2003-10-01 DOI: 10.1109/EUMA.2003.340964
B. Bunz, G. Kompa
{"title":"Active load pull with fourth harmonic tuning based on an IQ modulator concept","authors":"B. Bunz, G. Kompa","doi":"10.1109/EUMA.2003.340964","DOIUrl":"https://doi.org/10.1109/EUMA.2003.340964","url":null,"abstract":"This paper presents on wafermeasurements of a transistor optimised for linear amplifier operation with for the first time 4th harmonic load pull variations. Results show that the termination of the 4th harmonic has nonnegligible influence on the performance of an FET.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126131908","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
Analysis of an Automatically Tuned Filter and its Application at Microwave Frequencies 一种自动调谐滤波器的分析及其在微波频率中的应用
2003 33rd European Microwave Conference, 2003 Pub Date : 2003-10-01 DOI: 10.1109/EUMA.2003.341111
E. Neber, S. Quintanel, L. Billonnet, B. Jarry, M. Hoffmann
{"title":"Analysis of an Automatically Tuned Filter and its Application at Microwave Frequencies","authors":"E. Neber, S. Quintanel, L. Billonnet, B. Jarry, M. Hoffmann","doi":"10.1109/EUMA.2003.341111","DOIUrl":"https://doi.org/10.1109/EUMA.2003.341111","url":null,"abstract":"This paper analyses an automatically tuned filter and its application at microwave frequencies in detail. The filter is implemented in a master-slave structure. Either the phase or the magnitude response of the master-filter at a reference frequency is used to find information on potential operating points and on the stability of the complete control structure. The theory is simulated and compared to measured results.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129348711","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
Electromagnetic Surface Waves in Mixed Media 混合介质中的电磁表面波
2003 33rd European Microwave Conference, 2003 Pub Date : 2003-10-01 DOI: 10.1109/EUMA.2003.340826
V. H. Mok, L. Davis
{"title":"Electromagnetic Surface Waves in Mixed Media","authors":"V. H. Mok, L. Davis","doi":"10.1109/EUMA.2003.340826","DOIUrl":"https://doi.org/10.1109/EUMA.2003.340826","url":null,"abstract":"TM surface waves on an interface between semiconductors, ferrites or artificial dielectrics are considered. The normalised phase coefficient, ß/k0, is calculated for a range of values for the two media, first with (¿r1 = 1, ¿r1 = 1) and then with (¿r1 = 1, ¿r1 = -1) assuming - 5 < ¿r2/¿r1 < 5, -5 ¿r2/¿r1 < 0. This range of parameters includes some \"double negative\" cases for the second medium. Dispersion diagrams are presented for the case where region 1 is an artificial magnetic dielectric and region 2 is a semiconductor plasma. The results have implications for the design of miniature passive components.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129664683","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
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