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Frequency extension of the fully printed phase shifter by paste composite optimization 浆料复合优化全印刷移相器的频率扩展
2015 German Microwave Conference Pub Date : 2015-05-14 DOI: 10.1109/GEMIC.2015.7107774
M. Nikfalazar, C. Kohler, D. Kienemund, A. Wiens, Y. Zheng, M. Sohrabi, J. Binder, R. Jakoby
{"title":"Frequency extension of the fully printed phase shifter by paste composite optimization","authors":"M. Nikfalazar, C. Kohler, D. Kienemund, A. Wiens, Y. Zheng, M. Sohrabi, J. Binder, R. Jakoby","doi":"10.1109/GEMIC.2015.7107774","DOIUrl":"https://doi.org/10.1109/GEMIC.2015.7107774","url":null,"abstract":"This paper aims to propose new approaches based on fully screen printing technology for realization of tunable components with frequency extension based on BST paste composite optimization. The tunable phase shifters are fabricated to demonstrate the capabilities of these simple, flexible and low-cost methods. The proposed phase shifters contain tunable ferroelectric varactors in metal-insulator-metal (MIM) configuration, which are fully printed on top of an alumina carrier substrate with metallic and dielectric pastes, subsequently dried and cofired. The printed phase shifters work in different frequency ranges by using different ferroelectric composites. The BST pastes are optimized for low sintering temperature performance. Using BST composite with MgBO, the frequency range is extended to 7.6GHz.","PeriodicalId":229585,"journal":{"name":"2015 German Microwave Conference","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126631857","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
Synchronization concept for the characterization of integrated circuits with multi-gigabit receivers and a slow feedback channel 具有多千兆接收器和慢反馈通道的集成电路特性的同步概念
2015 German Microwave Conference Pub Date : 2015-05-14 DOI: 10.1109/GEMIC.2015.7107799
Martin Schmidt, Jianxiong Zhang, Thomas Fohn, M. Grozing, M. Berroth
{"title":"Synchronization concept for the characterization of integrated circuits with multi-gigabit receivers and a slow feedback channel","authors":"Martin Schmidt, Jianxiong Zhang, Thomas Fohn, M. Grozing, M. Berroth","doi":"10.1109/GEMIC.2015.7107799","DOIUrl":"https://doi.org/10.1109/GEMIC.2015.7107799","url":null,"abstract":"This paper presents an off-line synchronization concept for the characterization of integrated circuits with receivers operating in the Gb/s range. The concept relies on the use of a programmable FPGA board with fast transmitters, a configurable delay board and an undersampling test register at the receiver side.","PeriodicalId":229585,"journal":{"name":"2015 German Microwave Conference","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122627055","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
System design for encounter detection of distributed wireless sensors 分布式无线传感器遇袭检测系统设计
2015 German Microwave Conference Pub Date : 2015-05-14 DOI: 10.1109/GEMIC.2015.7107833
M. Hierold, Simon P. Ripperger, F. Mayer, R. Weigel, A. Koelpin
{"title":"System design for encounter detection of distributed wireless sensors","authors":"M. Hierold, Simon P. Ripperger, F. Mayer, R. Weigel, A. Koelpin","doi":"10.1109/GEMIC.2015.7107833","DOIUrl":"https://doi.org/10.1109/GEMIC.2015.7107833","url":null,"abstract":"In this paper a system for proximity detection of small sized animals like bats is presented. The system is based on a time slotted communication between compact low weight mobile nodes. For precise time synchronization of the nodes a scalable grid of base stations is proposed that distributes a time reference signal using a time division multiple access (TDMA) scheme. The system parameters are chosen considering the timing constraints caused by the severe requirements to the mobile nodes. In a power consumption analysis the system operation time limited by the 1.8 g nodes is calculated to be 7.4 days. First field test results are shown which proof the functional capability of the system's principle.","PeriodicalId":229585,"journal":{"name":"2015 German Microwave Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132288883","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
Using metamaterial resonators for controlling surface wave modes in an open waveguide 利用超材料谐振器控制开放波导中的表面波模式
2015 German Microwave Conference Pub Date : 2015-05-14 DOI: 10.1109/GEMIC.2015.7107755
S. Tooni, L. Vietzorreck, T. Eibert
{"title":"Using metamaterial resonators for controlling surface wave modes in an open waveguide","authors":"S. Tooni, L. Vietzorreck, T. Eibert","doi":"10.1109/GEMIC.2015.7107755","DOIUrl":"https://doi.org/10.1109/GEMIC.2015.7107755","url":null,"abstract":"Based on the properties of surface wave modes in dielectric slab waveguides, it is shown that the cutoff frequencies of the surface wave modes can be obtained from the zeroes of the reflection coefficient at wavenumbers close to the light line. Afterwards, a surface wave periodic structure is analyzed by the method of excitation of eigenmodes. By considering the field distribution of the surface wave modes of the open waveguide structure, the unit cells are loaded by appropriate metamaterial resonators. The metamaterial resonators introduce a new surface wave mode propagating at frequencies below their resonant frequency while the eigenmodes of the guided structure are not strongly affected. This method can be employed to obtain an arbitrary frequency band for near-field imaging applications.","PeriodicalId":229585,"journal":{"name":"2015 German Microwave Conference","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114078304","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
Influence of the vehicle environment on the radiation characteristics of vehicle roof antennas 车辆环境对车顶天线辐射特性的影响
2015 German Microwave Conference Pub Date : 2015-05-14 DOI: 10.1109/GEMIC.2015.7107831
M. Mocker, Shu Liu, Vicente A. Fuertes, H. Tazi, T. Eibert
{"title":"Influence of the vehicle environment on the radiation characteristics of vehicle roof antennas","authors":"M. Mocker, Shu Liu, Vicente A. Fuertes, H. Tazi, T. Eibert","doi":"10.1109/GEMIC.2015.7107831","DOIUrl":"https://doi.org/10.1109/GEMIC.2015.7107831","url":null,"abstract":"The influence of the vehicle environment on typical radiation patterns of roof antennas for satellite and as well for terrestrial communication is investigated. In order to separate the different effects on the electromagnetic wave, the antenna is simulated on several ground plates. The influence of edges close to the antenna, the curvature of the roof and glass is described. The simulated radiation patterns are compared to measurements carried out with a SATIMO Starlab. Furthermore the simulation of the antenna on a vehicle with near field sources is described.","PeriodicalId":229585,"journal":{"name":"2015 German Microwave Conference","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115596298","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
Design of an optimized linear sparse antenna array for a 24 GHz radar tachymeter 24ghz雷达测速仪的优化线性稀疏天线阵列设计
2015 German Microwave Conference Pub Date : 2015-05-14 DOI: 10.1109/GEMIC.2015.7107791
T. Pavlenko, Christoph Reustle, K. Thurn, D. Shmakov, R. Ebelt, M. Vossiek
{"title":"Design of an optimized linear sparse antenna array for a 24 GHz radar tachymeter","authors":"T. Pavlenko, Christoph Reustle, K. Thurn, D. Shmakov, R. Ebelt, M. Vossiek","doi":"10.1109/GEMIC.2015.7107791","DOIUrl":"https://doi.org/10.1109/GEMIC.2015.7107791","url":null,"abstract":"This paper presents the design of a linear antenna array for use in a 24 GHz radar tachymeter. The task of the proposed radar tachymeter is the precise measurement of the distance and angle to a cooperative transponder. To obtain the desired high accuracy, we designed an optimized sparse antenna array. The antenna pattern was selected using a brute-force optimization method. A fixed number of array elements was placed on a limited number of allowed grid positions and the array pattern with the best figure of merit for the given radar tachymeter application was selected. This approach can be successfully employed for sparse antenna array designs where multiple constraints such as aperture size limitations or number and spacing of antenna array elements are given. Distance and angle measurements taken with the implemented optimized array show excellent results. The standard deviations in range and azimuth were 8.6 mm and 0.1°, respectively for a range of several hundred meters.","PeriodicalId":229585,"journal":{"name":"2015 German Microwave Conference","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131573176","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
RF-MEMS-platform based on silicon-ceramic-composite-substrates 基于硅-陶瓷-复合衬底的rf - mems平台
2015 German Microwave Conference Pub Date : 2015-05-14 DOI: 10.1109/GEMIC.2015.7107837
M. Fischer, S. Gropp, J. Nowak, R. Sommer, M. Hoffmann, J. Muller
{"title":"RF-MEMS-platform based on silicon-ceramic-composite-substrates","authors":"M. Fischer, S. Gropp, J. Nowak, R. Sommer, M. Hoffmann, J. Muller","doi":"10.1109/GEMIC.2015.7107837","DOIUrl":"https://doi.org/10.1109/GEMIC.2015.7107837","url":null,"abstract":"In the last few years, several Low Temperature Co-fired Ceramics (LTCC) materials with a silicon adapted Coefficient of Thermal Expansion (CTE) have been developed for direct wafer bonding to silicon. BGK (special type designation of Fraunhofer IKTS), a sodium containing LTCC was originally developed for anodic bonding of the sintered LTCC whereas BCT (Bondable Ceramic Tape) tailored for direct silicon bonding of green LTCC tapes to fabricate a quasi-monolithic silicon ceramic compound substrate. This so-called SiCer technique is based on homogeneous nano-structuring of a silicon substrate, a lamination step of BCT and silicon and a subsequent pressure assisted sintering. We present a new approach for an integrated RF-platform-setup combining passive, active and mechanical elements on one SiCer substrate. In this context RF parameters of the silicon adapted LTCC tapes are investigated. We show first technological results of creating cavities at the silicon ceramic interface for SiCer-specific contacting options as well as windows in the ceramic layer of the SiCer substrate for additional silicon processing. A further investigated platform technology is deep reactive ion etching of the silicon-ceramic-composite-substrate. The etching behavior of silicon on BCT will be demonstrated and discussed. With the SiCer technique it is possible to reduce the silicon content at the setup of RF MEMS to a minimum (low signal damping).","PeriodicalId":229585,"journal":{"name":"2015 German Microwave Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117013478","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
An active UHF RFID transponder for fawn saving during pasture mowing 一个有源超高频射频识别应答器，用于在牧场割草期间保护小鹿
2015 German Microwave Conference Pub Date : 2015-03-16 DOI: 10.1109/GEMIC.2015.7107814
Markus Lehner, Michael Eberhardt, Alois Ascher, E. Biebl
{"title":"An active UHF RFID transponder for fawn saving during pasture mowing","authors":"Markus Lehner, Michael Eberhardt, Alois Ascher, E. Biebl","doi":"10.1109/GEMIC.2015.7107814","DOIUrl":"https://doi.org/10.1109/GEMIC.2015.7107814","url":null,"abstract":"The present publication describes an innovative concept for fawn saving during pasture mowing in spring time. Conventional approaches like scaring by dogs or scarecrows are ineffective and time consuming especially for large areas. Other technical solutions have different drawbacks or insufficient search performance. Within the active UHF RFID localization system the processes of identifying fawns and rescuing them during mowing are separated. To recover them during the mowing sequence the fawns, covered in high and thick grass, are marked with active UHF RFID Transponders. The UHF RFID Transponder is attached to the eavesdropper of the fawn. By using chip antennae an overall size of a one euro coin was achieved despite working within the UHF band. Due to the unknown position of the transponder in high grass the directivity of the chip antennae was measured with consideration of co-and cross-polarization. An efficient power management enables a lifetime of about one month. In addition, the UHF RFID Transponder is supplied with an environment-friendly zinc air battery.","PeriodicalId":229585,"journal":{"name":"2015 German Microwave Conference","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115143251","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 the analysis of ramp-inherent linearity distortions in automotive radar applications 一种分析汽车雷达斜坡固有线性畸变的方法
2015 German Microwave Conference Pub Date : 2015-03-16 DOI: 10.1109/GEMIC.2015.7107792
Felix Muller, D. Steinbuch, T. Walter, R. Weigel
{"title":"A method for the analysis of ramp-inherent linearity distortions in automotive radar applications","authors":"Felix Muller, D. Steinbuch, T. Walter, R. Weigel","doi":"10.1109/GEMIC.2015.7107792","DOIUrl":"https://doi.org/10.1109/GEMIC.2015.7107792","url":null,"abstract":"Through the use of sensors to provide information about the vehicles surroundings, driver assistance systems increase traffic safety. These sensors must not deliver wrong data due to noise or external distortion. In FMCW Radar systems additionally a highly linear ramp is essential. Hence nonlinear ramps have direct impact on the baseband spectrum. Weak targets could be covered and therefore not detected. This paper describes a method for evaluating the RF ramp linearity, based on analysis of the baseband signal. Therefore the analysis is easier, as the baseband frequency is only a few MHz depending on chirp modulation parameters and target distance. The instantaneous frequency is measured, so that deviations from the ideal slope can be detected immediately. Results are compared with simulations and high frequency measurements with a commercial availably spectrum analyzer which calculates the mean frequency deviation over a high number of ramps.","PeriodicalId":229585,"journal":{"name":"2015 German Microwave Conference","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122116851","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 wideband radial substrate integrated power divider at K-band 一种宽带径向基板集成k波段功率分配器
2015 German Microwave Conference Pub Date : 2015-03-16 DOI: 10.1109/GEMIC.2015.7107758
Christian Rave, A. Jacob
{"title":"A wideband radial substrate integrated power divider at K-band","authors":"Christian Rave, A. Jacob","doi":"10.1109/GEMIC.2015.7107758","DOIUrl":"https://doi.org/10.1109/GEMIC.2015.7107758","url":null,"abstract":"A wideband 1:7 radial power divider for operation at K-band is proposed. The divider features a radial substrate integrated waveguide (SIW) cavity enclosed in a multilayer printed circuit board (PCB) as well as microstrip matching structures and feed-lines on the top and bottom layers. The divider is designed using standard high-frequency substrate. Including the outer vias, the divider cavity has a diameter of about 7 mm. Thus a compact design is achieved. Measurement and simulation results are presented. The measured -10 dB reflection bandwidth of the divider is 9 GHz or 45% with a center frequency of 20 GHz.","PeriodicalId":229585,"journal":{"name":"2015 German Microwave Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128795199","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: 13
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