Pub Date : 2001-10-01DOI: 10.1109/EUMA.2001.339152
A. Kirilenko, L. Mospan
New configuration of the notch and bandstop filters is proposed and investigated. Here a rejection section is based on a thin slotted H-plane strip that may be considered as a limiting case of a three-slot iris. Such a section forms symmetrical frequency response with very low insertion loss out of the stopband. The results of numerical design and measurement data are given for a 3% notch filter and for 2% three-section bandstop one. In the low-power applications the proposed notch filter is probably the simplest one due to its easy fabrication and a possibility to be incorporated into a waveguide circuit by placing between the waveguide flanges.
{"title":"The Simplest Notch and Bandstop Filters Based on the Slotted Strips","authors":"A. Kirilenko, L. Mospan","doi":"10.1109/EUMA.2001.339152","DOIUrl":"https://doi.org/10.1109/EUMA.2001.339152","url":null,"abstract":"New configuration of the notch and bandstop filters is proposed and investigated. Here a rejection section is based on a thin slotted H-plane strip that may be considered as a limiting case of a three-slot iris. Such a section forms symmetrical frequency response with very low insertion loss out of the stopband. The results of numerical design and measurement data are given for a 3% notch filter and for 2% three-section bandstop one. In the low-power applications the proposed notch filter is probably the simplest one due to its easy fabrication and a possibility to be incorporated into a waveguide circuit by placing between the waveguide flanges.","PeriodicalId":207696,"journal":{"name":"2001 31st European Microwave Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129750762","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}
Pub Date : 2001-10-01DOI: 10.1109/EUMA.2001.339090
V. Kostylev
A detection of a Rayleigh range distributed target in a white Gaussian noise is analyzed. The detection procedure includes two steps: incoherent matched filtering and likelihood ratio test detection. For random number of scattering centers the structure of an optimal detector is given.
{"title":"Incoherent Detection of a Distributed Target","authors":"V. Kostylev","doi":"10.1109/EUMA.2001.339090","DOIUrl":"https://doi.org/10.1109/EUMA.2001.339090","url":null,"abstract":"A detection of a Rayleigh range distributed target in a white Gaussian noise is analyzed. The detection procedure includes two steps: incoherent matched filtering and likelihood ratio test detection. For random number of scattering centers the structure of an optimal detector is given.","PeriodicalId":207696,"journal":{"name":"2001 31st European Microwave Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129880712","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}
Pub Date : 2001-10-01DOI: 10.1109/EUMA.2001.339190
J. Pusl, S. Sridharan, D. Helms, P. Antognetti, M. Doherty
A power amplifier chipset for GSM and WCDMA mobile handset PAs has been designed and fabricated in the IBM Silicon Germanium BiCMOS 5AM process. This 3-chip set offers competitive performance and reliability for integrated GSM/DCS-PCS/WCDMA applications. The constant envelope (GSM and DCS-PCS) power amplifier designs are optimized for efficiency under pulsed GMSK conditions, achieving 55% and 45% PAE at 900 and 1880 MHz, respectively, at 3.4 V. The linear (WCDMA) amplifier performance has been optimized for continuous HPSK operation with - 36dBc ACPR maximum with up to 27 dBm output power. This family of PAs relies on two biasing architectures to address pulsed and linear operation by effectively utilizing the broad library of devices available in the BiCMOS process. Power device design and thermal conductivity of the silicon substrate are such that reliable operating temperatures during multi-slot GSM and WCDMA operation are assured. ICs are assembled in low-cost, 50-ohm matched modules or 4mm leadless (QFN) packages.
{"title":"A Silicon Germanium, High Efficiency Power Amplifier Chipset for GSM/DCS-PCS/WCDMA Handset Applications","authors":"J. Pusl, S. Sridharan, D. Helms, P. Antognetti, M. Doherty","doi":"10.1109/EUMA.2001.339190","DOIUrl":"https://doi.org/10.1109/EUMA.2001.339190","url":null,"abstract":"A power amplifier chipset for GSM and WCDMA mobile handset PAs has been designed and fabricated in the IBM Silicon Germanium BiCMOS 5AM process. This 3-chip set offers competitive performance and reliability for integrated GSM/DCS-PCS/WCDMA applications. The constant envelope (GSM and DCS-PCS) power amplifier designs are optimized for efficiency under pulsed GMSK conditions, achieving 55% and 45% PAE at 900 and 1880 MHz, respectively, at 3.4 V. The linear (WCDMA) amplifier performance has been optimized for continuous HPSK operation with - 36dBc ACPR maximum with up to 27 dBm output power. This family of PAs relies on two biasing architectures to address pulsed and linear operation by effectively utilizing the broad library of devices available in the BiCMOS process. Power device design and thermal conductivity of the silicon substrate are such that reliable operating temperatures during multi-slot GSM and WCDMA operation are assured. ICs are assembled in low-cost, 50-ohm matched modules or 4mm leadless (QFN) packages.","PeriodicalId":207696,"journal":{"name":"2001 31st European Microwave Conference","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128540138","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}
Pub Date : 2001-10-01DOI: 10.1109/EUMA.2001.339184
B. Toner, V. Fusco, M. Alam, G. A. Armstrong
This paper describes a multifunctional, electronically reconfigurable, small/large signal load pull measurement system and its integrated use with BSIM 3v3 for modelling of sub-micron CMOS transistors and sub-circuits. This turnkey measurement system can be electronically configured from a battery of instruments in order to characterise minimum noise, optimum power, intermodulation, dc and S-parameters, together with harmonic response and dynamic load line information under both source and load pull conditions. The instrumentation provides validation data against the BSIM physical model simulator. Hence, for the first time measurement of all of the significant devices parameters can be made for the device operated under all possible primary modes for model validation so that optimal circuit design can be carried out in a holistic fashion.
{"title":"Sub-Micron CMOS Characterisation for Single Chip Wireless Applications","authors":"B. Toner, V. Fusco, M. Alam, G. A. Armstrong","doi":"10.1109/EUMA.2001.339184","DOIUrl":"https://doi.org/10.1109/EUMA.2001.339184","url":null,"abstract":"This paper describes a multifunctional, electronically reconfigurable, small/large signal load pull measurement system and its integrated use with BSIM 3v3 for modelling of sub-micron CMOS transistors and sub-circuits. This turnkey measurement system can be electronically configured from a battery of instruments in order to characterise minimum noise, optimum power, intermodulation, dc and S-parameters, together with harmonic response and dynamic load line information under both source and load pull conditions. The instrumentation provides validation data against the BSIM physical model simulator. Hence, for the first time measurement of all of the significant devices parameters can be made for the device operated under all possible primary modes for model validation so that optimal circuit design can be carried out in a holistic fashion.","PeriodicalId":207696,"journal":{"name":"2001 31st European Microwave Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126890694","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}
Pub Date : 2001-10-01DOI: 10.1109/EUMA.2001.338950
M. Celuch-Marcysiak, M. Sypniewski, W. Gwarek
A direct technique of Q-factor extraction based on space-selective integration of dissipated power and electromagnetic energy is proposed, implemented in the FDTD software, and validated against analytical solutions and Prony method. An advantage of this technique over Prony is that losses caused by various materials and / or in various parts of the circuit can be independently evaluated during one FDTD simulation. Its disadvantage is the necessity of a separate simulation for each eigenmode.
{"title":"Space-Selective Extraction of Q-Factors from FDTD Simulations","authors":"M. Celuch-Marcysiak, M. Sypniewski, W. Gwarek","doi":"10.1109/EUMA.2001.338950","DOIUrl":"https://doi.org/10.1109/EUMA.2001.338950","url":null,"abstract":"A direct technique of Q-factor extraction based on space-selective integration of dissipated power and electromagnetic energy is proposed, implemented in the FDTD software, and validated against analytical solutions and Prony method. An advantage of this technique over Prony is that losses caused by various materials and / or in various parts of the circuit can be independently evaluated during one FDTD simulation. Its disadvantage is the necessity of a separate simulation for each eigenmode.","PeriodicalId":207696,"journal":{"name":"2001 31st European Microwave Conference","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127030714","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}
Pub Date : 2001-10-01DOI: 10.1109/EUMA.2001.339064
U. Rosenberg, K. Beis
A novel `short-slot' coupler design variant is introduced to provide high performance over a substantial increased operating bandwidth compared with the state-of-the-art. It is based on an optimised overmoded coupling region that is associated with appropriate waveguide transformers to match the dedicated standard rectangular waveguide ports. The established single acting structure is supported by the design capability of effective EM CAD methods and facilitates low cost production by standard milling techniques. Theoretical and experimental results of 3dB couplers at 26GHz - covering a frequency band of 25% with a coupling variation of less than ±0.25dB - and at 30GHz covering 20% bandwidth (with a coupling variation of less than ±0.1dB) prove the validity of the approach.
{"title":"Improved Narrow-Wall Short Slot Coupler Design Exhibiting Significant Increased Bandwidth and Low Cost Production","authors":"U. Rosenberg, K. Beis","doi":"10.1109/EUMA.2001.339064","DOIUrl":"https://doi.org/10.1109/EUMA.2001.339064","url":null,"abstract":"A novel `short-slot' coupler design variant is introduced to provide high performance over a substantial increased operating bandwidth compared with the state-of-the-art. It is based on an optimised overmoded coupling region that is associated with appropriate waveguide transformers to match the dedicated standard rectangular waveguide ports. The established single acting structure is supported by the design capability of effective EM CAD methods and facilitates low cost production by standard milling techniques. Theoretical and experimental results of 3dB couplers at 26GHz - covering a frequency band of 25% with a coupling variation of less than ±0.25dB - and at 30GHz covering 20% bandwidth (with a coupling variation of less than ±0.1dB) prove the validity of the approach.","PeriodicalId":207696,"journal":{"name":"2001 31st European Microwave Conference","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123649587","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}
Pub Date : 2001-10-01DOI: 10.1109/EUMA.2001.339153
B. V. Van Thielen, G. Vandenbosch
As modern circuits become smaller and the frequencies that they work at become higher, inevitably, parasitic coupling within the circuits starts to influence the behavior of the circuit more and more. Therefore it is necessary to include the influence of mutual coupling in the circuit simulators that are used to design the circuit. In this paper the circuit is divided into three classes of building blocks: transmission lines, small discontinuities (components) and meshed structures (solved using classical MoM). We will describe software modules that can calculate the couplings between these classes. The three modules are compatible with each other because they use the same parameters (incoming and outgoing waves at the ports, incident fields and radiating currents). They can be easily combined with a normal circuit simulation engine to include mutual coupling.
{"title":"Fast Method to Include Parasitic Coupling in Planar Microwave Circuits Calculations","authors":"B. V. Van Thielen, G. Vandenbosch","doi":"10.1109/EUMA.2001.339153","DOIUrl":"https://doi.org/10.1109/EUMA.2001.339153","url":null,"abstract":"As modern circuits become smaller and the frequencies that they work at become higher, inevitably, parasitic coupling within the circuits starts to influence the behavior of the circuit more and more. Therefore it is necessary to include the influence of mutual coupling in the circuit simulators that are used to design the circuit. In this paper the circuit is divided into three classes of building blocks: transmission lines, small discontinuities (components) and meshed structures (solved using classical MoM). We will describe software modules that can calculate the couplings between these classes. The three modules are compatible with each other because they use the same parameters (incoming and outgoing waves at the ports, incident fields and radiating currents). They can be easily combined with a normal circuit simulation engine to include mutual coupling.","PeriodicalId":207696,"journal":{"name":"2001 31st European Microwave Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114627926","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}
Pub Date : 2001-10-01DOI: 10.1109/EUMA.2001.338966
A. Gorur, C. Karpuz
A new cross-coupled planar microwave filter is proposed using coupled microstrip triangular open-loop resonators. The full-wave EM simulator is used to design the triangular resonator and to calculate the coupling coefficients of three basic coupling structures encountered in this type of filter. A four-pole elliptic function filter of this type is designed and fabricated. Measured filter performance is compared with the simulated performance.
{"title":"Cross-Coupled Bandpass Filter using Microstrip Triangular Open-Loop Resonators","authors":"A. Gorur, C. Karpuz","doi":"10.1109/EUMA.2001.338966","DOIUrl":"https://doi.org/10.1109/EUMA.2001.338966","url":null,"abstract":"A new cross-coupled planar microwave filter is proposed using coupled microstrip triangular open-loop resonators. The full-wave EM simulator is used to design the triangular resonator and to calculate the coupling coefficients of three basic coupling structures encountered in this type of filter. A four-pole elliptic function filter of this type is designed and fabricated. Measured filter performance is compared with the simulated performance.","PeriodicalId":207696,"journal":{"name":"2001 31st European Microwave Conference","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116290734","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}
Pub Date : 2001-10-01DOI: 10.1109/EUMA.2001.338954
E. Udvary
The realization of the add/drop functions in the subcarrier multiplexed optical networks is a relevant problem. Namely the channel (a microwave subcarrier with information) branching is difficult in these systems. The application of Semiconductor Optical Amplifiers (SOAs) offers a fine answer for this question, because this device gives favorable properties according to the experimental studies. Noise, transmission performance and application possibilities of semiconductor optical amplifiers are studied, measured and demonstrated in this paper
{"title":"Branching of Subcarrier Multiplexed Optical Networks by SOAs","authors":"E. Udvary","doi":"10.1109/EUMA.2001.338954","DOIUrl":"https://doi.org/10.1109/EUMA.2001.338954","url":null,"abstract":"The realization of the add/drop functions in the subcarrier multiplexed optical networks is a relevant problem. Namely the channel (a microwave subcarrier with information) branching is difficult in these systems. The application of Semiconductor Optical Amplifiers (SOAs) offers a fine answer for this question, because this device gives favorable properties according to the experimental studies. Noise, transmission performance and application possibilities of semiconductor optical amplifiers are studied, measured and demonstrated in this paper","PeriodicalId":207696,"journal":{"name":"2001 31st European Microwave Conference","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128119610","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}
Pub Date : 2001-10-01DOI: 10.1109/EUMA.2001.338940
I. Rolfes, T. Musch, B. Schiek
Improvements in the determination of the 4 real parameters Fmin, Rn, Gopt, Bopt which completely describe the noise behaviour of a linear two-port are presented. An accurate noise parameter measurement method, the seven-state-method, is developed. Contrary to previous works this method is mainly based on cold noise power measurements. An additional measurement of the input admittance of the DUT with a network analyser as needed for other techniques is not necessary. In addition, the noise power measurement accuracy is improved by the development of a highly linear digital detector.
{"title":"A Highly Linear Digital Detector for Noise Parameter Measurements at Microwave Frequencies","authors":"I. Rolfes, T. Musch, B. Schiek","doi":"10.1109/EUMA.2001.338940","DOIUrl":"https://doi.org/10.1109/EUMA.2001.338940","url":null,"abstract":"Improvements in the determination of the 4 real parameters Fmin, Rn, Gopt, Bopt which completely describe the noise behaviour of a linear two-port are presented. An accurate noise parameter measurement method, the seven-state-method, is developed. Contrary to previous works this method is mainly based on cold noise power measurements. An additional measurement of the input admittance of the DUT with a network analyser as needed for other techniques is not necessary. In addition, the noise power measurement accuracy is improved by the development of a highly linear digital detector.","PeriodicalId":207696,"journal":{"name":"2001 31st European Microwave Conference","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115808077","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：