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2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits最新文献

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Square-law accuracy of microwave radiometers 微波辐射计的平方律精度
2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits Pub Date : 2008-11-01 DOI: 10.1109/INMMIC.2008.4745712
S. Maas, D. Vizard
{"title":"Square-law accuracy of microwave radiometers","authors":"S. Maas, D. Vizard","doi":"10.1109/INMMIC.2008.4745712","DOIUrl":"https://doi.org/10.1109/INMMIC.2008.4745712","url":null,"abstract":"We consider the problem of evaluating the square-law accuracy (ldquolinearityrdquo) of a microwave radiometer. In order to reduce linearity errors below the noise level, linearity error of the square law detector less than 10-4 times the linear output is needed. We derive a Volterra model of the detectorpsilas response to noise and use sinusoidal excitations to extract the kernels. By using relatively high-level signals to determine the parameters of the model, measurements near the detectorpsilas operating level are avoided and highly precise measurements are not needed. A full error analysis shows that the desired accuracy can be obtained by this method.","PeriodicalId":205987,"journal":{"name":"2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122911112","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
Mode control in triple-push oscillator architectures 三推振荡器结构中的模式控制
2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits Pub Date : 2008-11-01 DOI: 10.1109/INMMIC.2008.4745715
S. Via, A. Collado, A. Georgiadis, A. Acampora
{"title":"Mode control in triple-push oscillator architectures","authors":"S. Via, A. Collado, A. Georgiadis, A. Acampora","doi":"10.1109/INMMIC.2008.4745715","DOIUrl":"https://doi.org/10.1109/INMMIC.2008.4745715","url":null,"abstract":"The multiple coexisting modes in triple-push circuits are studied using harmonic balance and continuation methods. In order to utilize N-push circuits for power combination, the oscillating elements have to present a phase shift distribution of 2 pi/N among them. However additional modes with different phase distributions usually coexist with the desired mode. In this work these multiple modes are obtained and their dependence with the coupling strength and phase at the first harmonic among the oscillating elements is studied. The results are verified using a prototype around 6 GHz.","PeriodicalId":205987,"journal":{"name":"2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134463016","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
Effects of input routing in switched RF amplifiers 开关射频放大器中输入路由的影响
2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits Pub Date : 2008-11-01 DOI: 10.1109/INMMIC.2008.4745708
S. Hietakangas, J. Typpo, T. Rahkonen
{"title":"Effects of input routing in switched RF amplifiers","authors":"S. Hietakangas, J. Typpo, T. Rahkonen","doi":"10.1109/INMMIC.2008.4745708","DOIUrl":"https://doi.org/10.1109/INMMIC.2008.4745708","url":null,"abstract":"This paper discusses the effects of unequal signal delays in the input network of a multi-finger transistor in a switching RF power amplifier. In a design that employs a distributed transistor, the driving signal must be delivered to each transistor finger by conductor segments that usually are unequal in length. The effects of the consequent non-simultaneous switching are demonstrated with three simulation examples performed with ADS circuit simulator at the frequency of 1.6 GHz, showing significant efficiency degradation when the input trace lengths to the individual transistor fingers differ from each other. An additional cause of highly increased timing differences and non-simultaneous switching is the signal dependent gate capacitance that changes the loading of the signal trace and affects to the signal delays. It is suggested that either tree-like input traces or suitably positioned second harmonic trap should be used to maximize the efficiency and to ensure good driving signal delay match to all fingers of the switching transistor.","PeriodicalId":205987,"journal":{"name":"2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131073736","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
Nonlinear analysis of phase noise in microwave oscillators using standard envelope transient technique 用标准包络暂态技术分析微波振荡器的相位噪声
2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits Pub Date : 2008-11-01 DOI: 10.1109/INMMIC.2008.4745718
J. Dominguez, S. Sancho, A. Suárez
{"title":"Nonlinear analysis of phase noise in microwave oscillators using standard envelope transient technique","authors":"J. Dominguez, S. Sancho, A. Suárez","doi":"10.1109/INMMIC.2008.4745718","DOIUrl":"https://doi.org/10.1109/INMMIC.2008.4745718","url":null,"abstract":"In this paper, a numerical technique for the determination of the phase-noise spectrum of free-running oscillators is presented. The technique is based on envelope transient and can be applied to any commercial simulator on which this analysis method is available. The main advantage of the technique is that it allows simulating the near carrier phase noise spectrum, including possible resonances. The elements providing the oscillator phase-noise spectrum are obtained from envelope-transient simulations of low-computational cost. Comparisons are performed between the presented technique and other existing techniques, such as the conversion-matrix approach. The technique has been successfully tested on the simulation of the near carrier phase noise spectrum of an oscillator circuit at 6.3 GHz.","PeriodicalId":205987,"journal":{"name":"2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114065432","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
Fast approximation formulas describing the non-linear intrinsic transistor equivalent circuit elements 描述非线性本征晶体管等效电路元件的快速近似公式
2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits Pub Date : 2008-11-01 DOI: 10.1109/INMMIC.2008.4745741
B. Koster, N. Koster, D. Erni, A. Beyer
{"title":"Fast approximation formulas describing the non-linear intrinsic transistor equivalent circuit elements","authors":"B. Koster, N. Koster, D. Erni, A. Beyer","doi":"10.1109/INMMIC.2008.4745741","DOIUrl":"https://doi.org/10.1109/INMMIC.2008.4745741","url":null,"abstract":"The non-linear characteristics of the intrinsic transistorpsilas equivalent circuit elements are determined by S-parameter measurements at a large number of different operating points and then approximated by fast computable formulas. These equations can be inserted into a suitable CAD program in order to perform a successful non-linear circuit design, such as e.g. developing oscillator and mixer circuits.","PeriodicalId":205987,"journal":{"name":"2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122308857","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
Non-quasi-static nonlinear model for FinFETs using higher-order sources 高阶源finfet的非准静态非线性模型
2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits Pub Date : 2008-11-01 DOI: 10.1109/INMMIC.2008.4745702
S. M. Homayouni, D. Schreurs, B. Nauwelaers, G. Crupi
{"title":"Non-quasi-static nonlinear model for FinFETs using higher-order sources","authors":"S. M. Homayouni, D. Schreurs, B. Nauwelaers, G. Crupi","doi":"10.1109/INMMIC.2008.4745702","DOIUrl":"https://doi.org/10.1109/INMMIC.2008.4745702","url":null,"abstract":"A direct analytical extraction of a non-quasi-static nonlinear table-based FET model at mm-wave frequencies is demonstrated in this study. It makes use of extended charge and current sources at both gate and drain terminals to account for the frequency dispersion behavior of transistors at mm-wave frequencies. The model is validated using silicon FinFET transistors. Excellent agreement is achieved between measurements and model simulation revealing significant improvements over quasi-static nonlinear model results.","PeriodicalId":205987,"journal":{"name":"2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130605742","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
Freitag method application to PA stability test Freitag法在PA稳定性试验中的应用
2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits Pub Date : 2008-11-01 DOI: 10.1109/INMMIC.2008.4745739
M. Jankowski, E. Limiti, P. Longhi
{"title":"Freitag method application to PA stability test","authors":"M. Jankowski, E. Limiti, P. Longhi","doi":"10.1109/INMMIC.2008.4745739","DOIUrl":"https://doi.org/10.1109/INMMIC.2008.4745739","url":null,"abstract":"The multi-device Power Amplifier even and odd-mode stability is being tested using the Freitag approach. Results are verified by means of the time domain response of a sample circuit. Limitations are discussed and a possible extension of the method is proposed.","PeriodicalId":205987,"journal":{"name":"2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits","volume":"167 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133158487","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
Orthonormal-basis power amplifier model reduction 正交基功率放大器模型简化
2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits Pub Date : 2008-11-01 DOI: 10.1109/INMMIC.2008.4745709
A. Soltani Tehrani, H. Cao, T. Eriksson, C. Fager
{"title":"Orthonormal-basis power amplifier model reduction","authors":"A. Soltani Tehrani, H. Cao, T. Eriksson, C. Fager","doi":"10.1109/INMMIC.2008.4745709","DOIUrl":"https://doi.org/10.1109/INMMIC.2008.4745709","url":null,"abstract":"A new power amplifier behavioral model is proposed in this paper. The memory polynomial model is combined with a Kautz-Volterra like filter to construct this novel parallel three-box model. With this technique, the number of parameters required to obtain a certain accuracy can be reduced, and a higher nonlinear order and longer memory depth can be modeled compared to the Kautz-Volterra model. Results from modeling a power amplifier are presented and compared to other models.","PeriodicalId":205987,"journal":{"name":"2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124869943","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
Harmonic matching design for triplers 三倍频谐波匹配设计
2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits Pub Date : 2008-11-01 DOI: 10.1109/INMMIC.2008.4745737
W. Ciccognani, E. Limiti, P. Longhi, L. Scucchia
{"title":"Harmonic matching design for triplers","authors":"W. Ciccognani, E. Limiti, P. Longhi, L. Scucchia","doi":"10.1109/INMMIC.2008.4745737","DOIUrl":"https://doi.org/10.1109/INMMIC.2008.4745737","url":null,"abstract":"In this paper a new approach to design frequency triplers is introduced. The technique is based on the closed-form synthesis of distributed matching networks which synthesize the desired load values at fundamental, second and third harmonic frequencies. Then to validate the introduced approach an active frequency tripler is designed and the resulting performances are reported.","PeriodicalId":205987,"journal":{"name":"2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114485134","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
Co-location of different technologies in the same site 同一站点中不同技术的共存
2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits Pub Date : 2008-11-01 DOI: 10.1109/INMMIC.2008.4745746
G. Martins, N. Carvalho, S. Pires, P. Cabral
{"title":"Co-location of different technologies in the same site","authors":"G. Martins, N. Carvalho, S. Pires, P. Cabral","doi":"10.1109/INMMIC.2008.4745746","DOIUrl":"https://doi.org/10.1109/INMMIC.2008.4745746","url":null,"abstract":"The aim of this paper is to promote the discussion and raise peoplepsilas awareness towards the creation of recommendations and regulations to improve the installation of different technologies in the same site. This research was accomplished with a theoretical approach and verified with real measurements of commercial Tower Mounted Amplifiers (TMApsilas).","PeriodicalId":205987,"journal":{"name":"2008 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125400934","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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