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2012 42nd European Microwave Conference最新文献

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Design of a compact dual-band diplexer with dual-mode cavities 具有双模腔的紧凑型双频双工器的设计
2012 42nd European Microwave Conference Pub Date : 2012-10-28 DOI: 10.23919/EUMC.2012.6459259
H. Ezzeddine, P. Mazet, S. Bila, S. Verdeyme, F. Seyfert, D. Pacaud, J. Puech, L. Estagerie
{"title":"Design of a compact dual-band diplexer with dual-mode cavities","authors":"H. Ezzeddine, P. Mazet, S. Bila, S. Verdeyme, F. Seyfert, D. Pacaud, J. Puech, L. Estagerie","doi":"10.23919/EUMC.2012.6459259","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459259","url":null,"abstract":"In this paper, we propose a compact dual-band microwave output diplexer for the next generations of communication satellite. For reducing bulk, the designed diplexer is exclusively composed of coupled resonators and channel filters realize dual-band filtering functions. Compared to classical multiplexing architectures, the proposed design eliminates additional waveguide elements and leads to a more compact device. On the other hand, dual-mode cavity implementation is chosen for getting more compactness, and suiting with payloads output multiplexers, since this technology is largely used for OMUX applications.","PeriodicalId":266910,"journal":{"name":"2012 42nd European Microwave Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126964295","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
Development of an all-metal large contact force reliable RF-MEMS relay for space applications 空间应用全金属大接触力可靠RF-MEMS继电器的研制
2012 42nd European Microwave Conference Pub Date : 2012-10-28 DOI: 10.23919/EUMC.2012.6459332
P. Blondy, A. Pothier, R. Stefanini, J. Gauvin, Damien Passerieux, Olivier Vendier, F. Courtade
{"title":"Development of an all-metal large contact force reliable RF-MEMS relay for space applications","authors":"P. Blondy, A. Pothier, R. Stefanini, J. Gauvin, Damien Passerieux, Olivier Vendier, F. Courtade","doi":"10.23919/EUMC.2012.6459332","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459332","url":null,"abstract":"This paper presents the development of and RF-MEMS relay for space applications. The integration of a large force electrostatic actuator has permitted dramatic improvement of the switch fabrication yield and reliability. The device does not suffer from well-known RF-MEMS issues such as drift in control voltage, temperature sensitivity. The device could be held in the down state for several days, at 70°C, without significant changes in the static characteristics and several devices have been successfully cycled up to 50 million cycles, with stable contact resistance.","PeriodicalId":266910,"journal":{"name":"2012 42nd European Microwave Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126968348","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
Resonance of stacked rings in LTCC technology for non-destructive characterisation sensor at 150 GHz 150ghz无损特性传感器LTCC技术中堆叠环的共振
2012 42nd European Microwave Conference Pub Date : 2012-10-28 DOI: 10.23919/EUMC.2012.6459218
H. Alaaeddine, O. Tantot, N. Delhote, D. Passerieux, S. Vedeyme
{"title":"Resonance of stacked rings in LTCC technology for non-destructive characterisation sensor at 150 GHz","authors":"H. Alaaeddine, O. Tantot, N. Delhote, D. Passerieux, S. Vedeyme","doi":"10.23919/EUMC.2012.6459218","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459218","url":null,"abstract":"This work aims to study, to design and to realise an original resonator based on stacked rings for an in situ characterisation of dielectric and metal materials used in a LTCC technology at 150 GHz on the one hand, and on the other hand to design a sensor using this resonator for a non-destructive dielectric characterisation of materials.","PeriodicalId":266910,"journal":{"name":"2012 42nd European Microwave Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132074853","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
Multiple feed transmit-array antennas with reduced focal distance 减少焦距的多馈源发射阵列天线
2012 42nd European Microwave Conference Pub Date : 2012-10-28 DOI: 10.23919/EUMC.2012.6459286
A. Clemente, L. Dussopt, R. Sauleau, P. Potier, P. Pouliguen
{"title":"Multiple feed transmit-array antennas with reduced focal distance","authors":"A. Clemente, L. Dussopt, R. Sauleau, P. Potier, P. Pouliguen","doi":"10.23919/EUMC.2012.6459286","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459286","url":null,"abstract":"The performances of a single- and a quadruple-feed transmit-array are compared in X-band. The study has been carried out using an in-house CAD tool based on analytical formulas, and ideal focal source and unit-cells in order to provide generic results. We show that a quadruple-feed configuration leads to a reduction of the focal length by about a factor two, with similar performance in terms of gain and aperture efficiency. In the case of quadruple-feed transmit-array, the 3-dB gain bandwidth is improved as compared to the single-feed case from 40% to 65%.","PeriodicalId":266910,"journal":{"name":"2012 42nd European Microwave Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123035883","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
Dispersion of spin-electromagnetic waves in ferrite-ferroelectric multilayered structure 自旋电磁波在铁氧体-铁电多层结构中的色散
2012 42nd European Microwave Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459247
A. Nikitin, V. Vitko, A. Ustinov, A. Semenov, E. Lahderanta
{"title":"Dispersion of spin-electromagnetic waves in ferrite-ferroelectric multilayered structure","authors":"A. Nikitin, V. Vitko, A. Ustinov, A. Semenov, E. Lahderanta","doi":"10.23919/EUMC.2012.6459247","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459247","url":null,"abstract":"A theory of quasi-surface spin-electromagnetic waves (SEW) in multilayered ferrite-ferroelectric (FF) structures consisted of several ferrite and ferroelectric layers was developed. Spectra of SEW in the multilayered structures was founded. Influence of different FF parameters on dispersion of SEW was analyzed.","PeriodicalId":266910,"journal":{"name":"2012 42nd European Microwave Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116988073","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
Practical aspects of 13C surface receive coils with active decoupling and tuning circuit 实际方面的13C表面接收线圈有源去耦和调谐电路
2012 42nd European Microwave Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459403
D. T. P. Nilsson, J. J. Mohr, V. Zhurbenko
{"title":"Practical aspects of 13C surface receive coils with active decoupling and tuning circuit","authors":"D. T. P. Nilsson, J. J. Mohr, V. Zhurbenko","doi":"10.23919/EUMC.2012.6459403","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459403","url":null,"abstract":"Magnetic Resonance Imaging (MRI) of nuclei other than 1H (e.g. 13C) allows for characterisation of metabolic processes. Imaging of such nuclei, however, requires development of sensitive MRI coils. This paper describes the design of surface receive coils for 13C imaging in small animals. The design is based on application-specified coil profile and includes impedance matching and balancing circuits. Active decoupling is implemented in order to minimize the influence of the receiving coil on the homogeneity of the transmit-coil field. Measurement results for a coil prototype are presented, including imaging experiments and estimation of the signal-to-noise ratio.","PeriodicalId":266910,"journal":{"name":"2012 42nd European Microwave Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127193845","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
Design and characterization of SiC varactor-based phase shifters 碳化硅变容相移相器的设计与表征
2012 42nd European Microwave Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459290
R. Quaglia, V. Camarchia, C. M. Andersson, M. Pirola, Christian Fager, D. Kuylenstierna
{"title":"Design and characterization of SiC varactor-based phase shifters","authors":"R. Quaglia, V. Camarchia, C. M. Andersson, M. Pirola, Christian Fager, D. Kuylenstierna","doi":"10.23919/EUMC.2012.6459290","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459290","url":null,"abstract":"Design and realization of two continuously tunable phase shifters for 1.4 GHz band is presented. Both circuits are based on SiC varactors, conceived to enable high-voltage, high-power operation, and suitable for application in the transmitter chain of reconfigurable radios. Experimental characterization shows, for the loaded line phase shifter, 74° maximum phase shift with insertion loss lower than 1 dB, and, for the reflective phase shifter, 90° maximum phase shift and insertion loss lower than 0.6 dB.","PeriodicalId":266910,"journal":{"name":"2012 42nd European Microwave Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124795696","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
Temperature compensated bulk acoustic wave resonator (BAWR) for near zero temperature coefficient of frequency (TCF) 近零温度频率系数(TCF)温度补偿体声波谐振器(BAWR)
2012 42nd European Microwave Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459302
Sang Uk Son, I. Song, Jeashik Shin, Ho-Soo Park, Jing Cui, Chul-Soo Kim, Duck-Hwan Kim
{"title":"Temperature compensated bulk acoustic wave resonator (BAWR) for near zero temperature coefficient of frequency (TCF)","authors":"Sang Uk Son, I. Song, Jeashik Shin, Ho-Soo Park, Jing Cui, Chul-Soo Kim, Duck-Hwan Kim","doi":"10.23919/EUMC.2012.6459302","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459302","url":null,"abstract":"A bulk acoustic wave resonator (BAWR) is an essential component of RF filters and duplexers in wireless communication devices. The BAWR consists of a piezoelectric layer sandwiched between bottom and top electrodes. Its resonance frequency shifts as an environment temperature changes, normally ranging -25~-30 ppm/ °C, of which phenomenon is referred to temperature coefficient of frequency (TCF). When a resonator has a large TCF value the gap between adjacent bands is reduced and interference occurs. To overcome this problem, a low TCF value is required while maintaining the characteristics such as carrier bandwidth, high quality factor (Q), and high effective coupling coefficient (kt2). In this work, a new BAWR structure with SiO2/SiN layers both on the top electrode and under the bottom electrode enabled TCF of -0.3~-7.8 ppm/°C, Q of 2400, and kt2 of 5.4%, respectively. This BAWR has been applied to transmission filters for LTE Band-7 and Band-25.","PeriodicalId":266910,"journal":{"name":"2012 42nd European Microwave Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114490002","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
A universal method for the design and synthesis of wideband directional couplers using non-uniform coupled transmission lines 采用非均匀耦合传输线设计和合成宽带定向耦合器的通用方法
2012 42nd European Microwave Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459269
J. Nehring, M. Hofmann, C. Munker, R. Weigel, G. Fischer, D. Kissinger
{"title":"A universal method for the design and synthesis of wideband directional couplers using non-uniform coupled transmission lines","authors":"J. Nehring, M. Hofmann, C. Munker, R. Weigel, G. Fischer, D. Kissinger","doi":"10.23919/EUMC.2012.6459269","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459269","url":null,"abstract":"In this paper a complete procedure for the design, synthesis and construction of wideband directional couplers is presented. Cascading multiple quarter-wavelength line segments leads to an increase of coupling bandwidth up to 180% but also results in discontinuities of geometry and thus in strong reflections. Furthermore, the isolation is diminished. To avoid these effects a design technique for the generation of continous, non-uniform geometries is analyzed and implemented. Two methods for the coupler synthesis are proposed and compared. One is an approximational approach and uses two sets of equations. The other uses accurate 2D field simulation of the propagating modes and is universally applicable to any kind of coupled transmission lines. The completely synthesized couplers are simulated in CST Microwave Studio and achieve very good results for coupling, isolation and return loss. A nominal -10 dB wideband coupler at a center frequency of 15GHz and a nominal bandwidth of 164% is built in a multilayer stackup. Good agreement between measurement and simulation results is observed.","PeriodicalId":266910,"journal":{"name":"2012 42nd European Microwave Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116809995","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
A novel automatic control system for frequency reconfigurable PIFA antenna 一种新型频率可重构PIFA天线自动控制系统
2012 42nd European Microwave Conference Pub Date : 2012-10-01 DOI: 10.23919/EUMC.2012.6459411
Trong Duc Nguyen, Y. Duroc, V. Y. Vu, T. Vuong
{"title":"A novel automatic control system for frequency reconfigurable PIFA antenna","authors":"Trong Duc Nguyen, Y. Duroc, V. Y. Vu, T. Vuong","doi":"10.23919/EUMC.2012.6459411","DOIUrl":"https://doi.org/10.23919/EUMC.2012.6459411","url":null,"abstract":"A novel control system for frequency reconfigurable planar invert F antenna (FRPIFA antenna) using microcontroller (MCU) is presented. The use of a MCU allows custom adjustment of the operation of PIN diode through the program and also allows an easy connection between Personal Computer (PC), Energy Detector (ED) and antenna. The MCU then processes the data obtained from those devices and produces feedback signals, based upon which system automatically corrects the antenna. Simulation and measurement results of antenna parameters validate the performance as well as the application of the developed antenna.","PeriodicalId":266910,"journal":{"name":"2012 42nd European Microwave Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116814052","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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