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2012 7th European Microwave Integrated Circuit Conference最新文献

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Design of coplanar bandstop filter based on open-loop-ring resonator and DGS for WLAN and UWB applications 基于开环环谐振器和DGS的WLAN和UWB共面带阻滤波器设计
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459142
A. Batmanov, E. Burte, R. Mikuta, A. Boutejdar, A. Omar, A. Khaidurova
{"title":"Design of coplanar bandstop filter based on open-loop-ring resonator and DGS for WLAN and UWB applications","authors":"A. Batmanov, E. Burte, R. Mikuta, A. Boutejdar, A. Omar, A. Khaidurova","doi":"10.23919/EUMC.2012.6459142","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459142","url":null,"abstract":"Design of a novel compact bandstop filter composed on an open-loop-ring resonator and a defected ground structure (DGS) for coplanar waveguide is proposed and investigated. A simple coplanar open-loop-ring resonator has been designed and tested for the stop-band from 3.9 GHz to 4.3 GHz with tree transmission zeroes inside the stop-band. Two almost symmetrical poles are obtained on both sides of the stop-band. Then the proposed broad band bandstop filter based on the one open-loop-ring resonator has been transformed to the bandstop filter for WLAN (fm=3.6 GHz) applications (fm=3.6 GHz) with a narrower stop-band but with improved pass- and stop-band characteristics. It is realized by adding a conventional rectangular DGS slot inside the open-loop-ring. The equivalent circuit model has been proposed to describe the behaviour of the bandstop filters. The improved bandstop filter introduces the stop-band from 2.9 GHz to 4.2 GHz with two transmission zeroes within and more than -20 dB rejection. After that the proposed bandstop filter has been modified to the lowpass filter for ultra wide band (UWB) applications. The total size of the proposed structure is around 13.0×13.0 mm2. All bandstop filters have been fabricated and measured. Measurements are in good agreement with simulation results.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123652396","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
Instrument related structure in covariance matrices used for uncertainty propagation 用于不确定性传播的协方差矩阵中的仪器相关结构
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459112
D. Humphreys, P. Harris, J. Miall
{"title":"Instrument related structure in covariance matrices used for uncertainty propagation","authors":"D. Humphreys, P. Harris, J. Miall","doi":"10.23919/EUMC.2012.6459112","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459112","url":null,"abstract":"We investigate the structure expected in covariance uncertainty matrices for real-time and sampling oscilloscopes with the aim of reducing the data storage requirements to scale proportional to the trace length (n) rather than n2. Simulation results indicate that the correlated and uncorrelated terms can be represented in a compact form. The implication of concatenated results, such as calibration and impedance match correction has been considered.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"369 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124625542","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
High-Q 3D embedded inductors using TSV for RF MEMS tunable bandpass filters (4.65–6.8 GHz) 用于RF MEMS可调谐带通滤波器(4.65-6.8 GHz)的TSV高q 3D嵌入式电感
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459120
W. Vitale, M. Fernandez-Bolaños, A. Ionescu
{"title":"High-Q 3D embedded inductors using TSV for RF MEMS tunable bandpass filters (4.65–6.8 GHz)","authors":"W. Vitale, M. Fernandez-Bolaños, A. Ionescu","doi":"10.23919/EUMC.2012.6459120","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459120","url":null,"abstract":"This paper presents the optimization design of 3D integrated inductors exploiting through silicon vias (TSV) technology to improve the quality (Q) factor in the 2-20 GHz range. The embedded inductor allows the heterogeneous integration with CMOS and MEMS components in a size-compact and low-cost manufacturing process. Results limited to our manufacturing possibilities (5.5×15 μ m-area tungsten TSVs, high resistivity (HR) silicon substrate) show Q-factor values as high as 35 at 8 GHz for 4.8 nH inductance, and design methods to improve them. These inductors are attractive to be used with MEMS capacitors for reconfigurable RFICs, as proposed for a tunable passband filter in the range 4.65 - 6.8 GHz. The filter shows 15% continuous linear center frequency tuning and over 45% in a digital fashion. The filter is also continuously tunable in bandwidth (up to 40%) while keeping constant the center frequency.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122363064","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: 17
Performance of nonsynchronous noncommensurate impedance transformers in comparison to tapered line transformers 非同步非相称阻抗变压器与锥形线路变压器的性能比较
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459400
Kseniya Kim, V. Zhurbenko, T. K. Johansen, Kumar Narendra
{"title":"Performance of nonsynchronous noncommensurate impedance transformers in comparison to tapered line transformers","authors":"Kseniya Kim, V. Zhurbenko, T. K. Johansen, Kumar Narendra","doi":"10.23919/EUMC.2012.6459400","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459400","url":null,"abstract":"Nonsynchronous noncommensurate impedance transformers consist of a combination of high- and low-impedance transmission lines. The present work is dedicated to the synthesis of such transformers. They are analyzed employing wave transmission matrices. The performance of the transformer is compared to a traditional tapered line impedance transformer. The increase in bandwidth of nonsynchronous noncommensurate impedance transformers typically leads to shortening the transformer length, which makes the transformer attractive for applications, where a wide operating band and high transformation ratios are required.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132448368","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
Performance estimation of fully digital polar modulation driving a 2 GHz switch-mode power amplifier 全数字极调制驱动2ghz开关模式功率放大器的性能估计
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459419
P. Ostrovskyy, J. Christoph Scheytt, A. Sadeghfam, Holger Heuermann
{"title":"Performance estimation of fully digital polar modulation driving a 2 GHz switch-mode power amplifier","authors":"P. Ostrovskyy, J. Christoph Scheytt, A. Sadeghfam, Holger Heuermann","doi":"10.23919/EUMC.2012.6459419","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459419","url":null,"abstract":"This paper presents a fully digital transmitter architecture based on a digital polar modulator (DPM) and switch-mode power amplifier (SMPA). A simple method for comparison and estimation of different digital modulation techniques for SMPA is described. An estimation of the proposed digital polar modulator properties was done by means of a 2.1..2.2 GHz class-F power amplifier. For a CDMA signal with 9.5 dB peak-to-average power ratio (PAPR), the class-F based amplifier module driven by DPM pulse train shows more than 1 W output power and more than 10 % of drain efficiency.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115544802","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
A U-band broadband power amplifier MMIC in 100 nm AlGaN/GaN HEMT technology 基于100nm AlGaN/GaN HEMT技术的u波段宽带功率放大器MMIC
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459381
D. Schwantuschke, P. Bruckner, R. Quay, M. Mikulla, O. Ambacher, I. Kallfass
{"title":"A U-band broadband power amplifier MMIC in 100 nm AlGaN/GaN HEMT technology","authors":"D. Schwantuschke, P. Bruckner, R. Quay, M. Mikulla, O. Ambacher, I. Kallfass","doi":"10.23919/EUMC.2012.6459381","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459381","url":null,"abstract":"The design and manufacture of a three-stage broadband power amplifier is presented in this paper. The amplifier MMIC is realized using AlGaN/GaN HEMTs with a gate-length of 100 nm in a grounded coplanar transmission line technology. A small-signal gain of over 20 dB was measured in the frequency range from 38 to 62 GHz (U-band) for the designed amplifier. This corresponds to a very high small-signal bandwidth of over 48 %. Related to the current-gain cutoff frequency, the bandwidth of the amplifier is 30 % of fT and the gain-bandwidth-product is approximately five times fT. Furthermore, a high continuous-wave saturated output power of 25.8 dBm (380 mW) and a high saturated power density of over 1 W/mm in the output stage are provided by the MMIC.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125198004","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
Non-uniform Q-factor distribution in microwave filters 微波滤波器中的非均匀q因子分布
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459396
P. M. Iglesias, I. Hunter
{"title":"Non-uniform Q-factor distribution in microwave filters","authors":"P. M. Iglesias, I. Hunter","doi":"10.23919/EUMC.2012.6459396","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459396","url":null,"abstract":"This paper presents the analysis for non-uniform Q-factor distributions in bandpass filter, particularly the case where the first and last resonators have reduced Q-factor compared with the rest of the resonators. It is shown that these have no effect on filter selectivity, only on overall loss. The theory is backed up with full-wave electromagnetic field simulation and measured data for a prototype filter.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131118978","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: 11
High ACLR 1-bit direct radio frequency converter using symmetric waveform 采用对称波形的高ACLR 1位直接射频转换器
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459319
T. Maehata, S. Kameda, N. Suematsu
{"title":"High ACLR 1-bit direct radio frequency converter using symmetric waveform","authors":"T. Maehata, S. Kameda, N. Suematsu","doi":"10.23919/EUMC.2012.6459319","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459319","url":null,"abstract":"We have developed a prototype of 1-bit direct radio frequency converter (DRFC) which is a kind of RF transmitter using bandpass delta-sigma modulation (BP-DSM). This prototype has functionalities to synchronously transmit two signals up to 6 Gb/s and to reduce intersymbol interference of eye pattern. In a trial, we transmitted a pair of 1 carrier with 5 MHz bandwidth of LTE at 300 MHz using BP-DSM to aim the MIMO, with an ACLR of 47 dB. This paper investigated the relationship between the ACLR of BP-DSM and analog waveform of 1-bit pulse train using the prototype. To clarify waveform influence, we introduced waveform decomposition into symmetric and asymmetric components to the time axis. We calculated numerical simulations using several types of waveforms varying the transition time. We confirmed that the asymmetric component causes spectrum leakage at adjacent channels. We finally concluded that the optimal waveform for BP-DSM is symmetrical to the time axis and that the ACLR in the prototype will improve to 60 dB by simulation.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129886608","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: 12
A single-transistor tunable filter for Bluetooth applications 用于蓝牙应用的单晶体管可调谐滤波器
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459288
L. Pantoli, V. Stornelli, G. Leuzzi
{"title":"A single-transistor tunable filter for Bluetooth applications","authors":"L. Pantoli, V. Stornelli, G. Leuzzi","doi":"10.23919/EUMC.2012.6459288","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459288","url":null,"abstract":"In this paper a wide dynamic range, high-Q, tunable filter realized with a single-transistor active inductor (AI) is presented. A single-transistor amplifier combined with a compensation network allows the control both of the equivalent inductance and of its series resistance in a wide frequency range. The proposed AI has been used in the design of a first-order band-pass filter with a central frequency of 2400MHz with a -3dB bandwidth less than 15MHz in a frequency range of 100MHz around the central frequency. Both attenuation and resonant frequency can be controlled. A dynamic range of 75dB is obtained with a noise figure of 10dB.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126931660","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: 14
A physical model for skin effect in rough surfaces 粗糙表面趋肤效应的物理模型
2012 7th European Microwave Integrated Circuit Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459235
G. Gold, K. Helmreich
{"title":"A physical model for skin effect in rough surfaces","authors":"G. Gold, K. Helmreich","doi":"10.23919/EUMC.2012.6459235","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459235","url":null,"abstract":"Insertion loss measured on PCB transmission lines operated in the two-digit Gigahertz range yields responses that exceed those simulated with geometry and material parameters. At such frequencies, the loss due to skin effect can no more be calculated assuming perfectly smooth conductor surfaces, as the skin depth would reach and fall below the dimension of surface roughness. Various phenomenological and topological models have been presented to account for this issue. Phenomenological models tend to need additional parameters to correct for new materials and frequency ranges, while topological models inherently use many parameters and often require significant computation effort. As an alternative, this paper suggests a comprehensive, single-parameter and fast computable physical model that accurately predicts measured responses.","PeriodicalId":243164,"journal":{"name":"2012 7th European Microwave Integrated Circuit Conference","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117231923","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: 42
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