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Active diplexer based on isolation circuits imbedded low noise amplifiers 基于嵌入低噪声放大器的隔离电路的有源双工器
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345800
Hanseung Lee, Jun H. Choi, T. Itoh
{"title":"Active diplexer based on isolation circuits imbedded low noise amplifiers","authors":"Hanseung Lee, Jun H. Choi, T. Itoh","doi":"10.1109/EUMC.2015.7345800","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345800","url":null,"abstract":"In this paper, a novel active diplexer based on low-noise amplifiers (LNAs) using multi-functional composite right/left-handed input matching circuit (CRLH-IMC) is proposed. Since each CRLH-IMC has optimized impedance for targeted LNA performances as well as the required isolation characteristics, an active diplexer with gain and low noise figure (NF) can be realized by placing a single input port between two LNAs with CRLH-IMCs. The proposed active diplexer can reduce overall system dimension and loss by removing passive diplexer. In addition, diplexer performances such as insertion loss and isolations can now be controlled by an amplifier design. In this paper, the active diplexer prototype operating at 1.5 GHz and 2.6 GHz is designed and fabricated. The measured results show good agreement with the simulated results.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114461314","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
Design of a high efficiency rectifier with wide bandwidth and input power range based on the time reversal duality of power amplifier 基于功率放大器时间反转二象性的宽带宽、宽输入功率范围的高效整流器设计
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345757
Defu Wang, Xuan Anh Nghiem, M. Wei, R. Negra
{"title":"Design of a high efficiency rectifier with wide bandwidth and input power range based on the time reversal duality of power amplifier","authors":"Defu Wang, Xuan Anh Nghiem, M. Wei, R. Negra","doi":"10.1109/EUMC.2015.7345757","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345757","url":null,"abstract":"This paper presents the concept and measurements of a new microwave rectifier based on the time reversal duality of power amplifiers. It is shown that the proposed rectifier can simultaneously provide high efficiency at large input power range over much more improved bandwidth compared to the conventional rectifier from time reversal duality. It is also reported that the proposed rectifier allows reconfiguration of the efficiency at input power range without placing the tunable elements. A 10 W wideband power amplifier with 79%drain efficiency at 1.85 GHz is used to validate the concept. By making the gate bias network short-terminated and replacing the drain termination with the DC load resistor for power amplifier, the circuit can operate as microwave rectifier with taking part of bandwidth from power amplifier. Measurements show the efficiency bandwidth with larger than 70 % rectifying efficiency at 15 dB input power range over a 1.7-1.95 GHz frequency range. The measurements thereby validate the presented concept and demonstrate the potential of the proposed rectifier for use in future wireless energy harvesting applications.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114951316","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: 15
RF CMOS wireless implantable microsystem for sacral roots stimulation with on-chip antenna and far-field wireless powering 带片上天线和远场无线供电的射频CMOS无线植入骶骨根刺激微系统
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345703
F. Rodrigues, S. Gomes, P. Anacleto, J. Fernandes, P. Mendes
{"title":"RF CMOS wireless implantable microsystem for sacral roots stimulation with on-chip antenna and far-field wireless powering","authors":"F. Rodrigues, S. Gomes, P. Anacleto, J. Fernandes, P. Mendes","doi":"10.1109/EUMC.2015.7345703","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345703","url":null,"abstract":"The use of heterogeneous integration technologies is the path for the development of further miniaturized, smarter, and energy autonomous microdevices, which are required to tackle the challenge of monitoring and/or control the health condition of everyone, everywhere. The interaction with human body requires the use of flexible materials, while the electronic component are based on rigid materials, like silicon substrates. Also, once inside the human body, it is desirable to have a wireless link for data communication, as well for RF powering, using energy harvesting techniques or dedicated powering RF links. This paper shows the design of an implantable microsystem to be used for functional electrical stimulation of sacral roots. The proposed system includes flexible electrodes, integrated with an RF CMOS chip, which is powered by a wireless link through an efficient on-chip antenna.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122027581","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
Metapaper: A frequency selective surface wallpaper for the attenuation of Wi-Fi signals Metapaper:用于衰减Wi-Fi信号的频率选择性表面墙纸
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345801
A. Niembro-Martin, Fabien De Barros, G. Eymin-Petot-Tourtollet, P. Lemaître-Auger, E. Pistono, T. Vuong
{"title":"Metapaper: A frequency selective surface wallpaper for the attenuation of Wi-Fi signals","authors":"A. Niembro-Martin, Fabien De Barros, G. Eymin-Petot-Tourtollet, P. Lemaître-Auger, E. Pistono, T. Vuong","doi":"10.1109/EUMC.2015.7345801","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345801","url":null,"abstract":"This paper presents a wallpaper filtering electromagnetic waves used in Wi-Fi transmissions. It is made of a frequency selective surface (FSS) printed on a paper substrate. The printing of conductive inks is done using industrial printing techniques. The FSS shows attenuation better than 25 dB for the first Wi-Fi band and better than 24 dB for the second one. The FSS pattern designed for this purpose is insensitive to the polarization and to the incidence angle of the electromagnetic waves up to ±60°.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129060598","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: 10
Acoustic-wave-lumped-element resonator (AWLR) architectures for high-Q reflective bandstop filters 用于高q反射带阻滤波器的声波集总元谐振器(AWLR)架构
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345790
D. Psychogiou, R. Gómez‐García, D. Peroulis
{"title":"Acoustic-wave-lumped-element resonator (AWLR) architectures for high-Q reflective bandstop filters","authors":"D. Psychogiou, R. Gómez‐García, D. Peroulis","doi":"10.1109/EUMC.2015.7345790","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345790","url":null,"abstract":"The RF design of a new family of reflective-type bandstop filters (BSFs) with small form factor, narrow bandwidth (BW) and large stopband attenuation is presented in this paper. The proposed filter geometries are based on mixed acoustic-wave-lumped-element resonator (AWLR) architectures that are effectively combined with lumped-element impedance inverters. Contrary to conventional all-AW filter topologies, the achieved stopband BW is no longer limited by the electromechanical coupling coefficient (kt2) of the acoustic wave (AW) resonator. Furthermore, their resulting stopbands exhibit effective quality factors (Qseff) that are at least 50 times higher than in traditional lumped-element filters. First- and second-order BSF prototypes that consist of commercially-available surface acoustic wave (SAW) resonators and surface mounted devices (SMDs) have been designed, built and measured at 418 MHz. Measured stopbands with 3dB-BWs between 0.25 MHz and 0.72 MHz, maximum stopband attenuation ranging from 20 to 30 dB, and passband loss between 0.4 and 1 dB are presented as proof-of-concept demonstrators.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"44 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130724808","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 design of unequal power divider with positive and negative group delays 一种具有正、负群延时的不等功率分配器的设计
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345716
G. Chaudhary, Junsik Park, Qi Wang, Y. Jeong
{"title":"A design of unequal power divider with positive and negative group delays","authors":"G. Chaudhary, Junsik Park, Qi Wang, Y. Jeong","doi":"10.1109/EUMC.2015.7345716","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345716","url":null,"abstract":"This paper presents group delay investigation and implementation of unequal power divider with very high power division ratio. The proposed structure consists of Wilkinson power divider and branch-line where direct and coupled ports are terminated with resistors. By analytically study, the group delay associated with transmission paths between 3 and 1 is negative whereas the group delay associated between transmission path 2 and 1 is positive. Moreover, the negative group delay (NGD) characteristics are purely controlled by resistor connected in branch-line. For experimental validation, the power divider with power division ratio of 21.39 dB and NGD of -0.529 ns was designed, fabricated and measured at center frequency of 2.14 GHz.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114205747","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
Low bias voltage tunable phase shifter based on inkjet-printed BST MIM varactors for C/X-band phased arrays C/ x波段相控阵用喷墨打印BST MIM变容器的低偏置电压可调移相器
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMIC.2015.7345157
M. Nikfalazar, A. Mehmood, M. Sohrabi, A. Wiens, Y. Zheng, H. Maune, R. Jakoby, M. Mikolajek, A. Friederich, C. Kohler, J. Binder
{"title":"Low bias voltage tunable phase shifter based on inkjet-printed BST MIM varactors for C/X-band phased arrays","authors":"M. Nikfalazar, A. Mehmood, M. Sohrabi, A. Wiens, Y. Zheng, H. Maune, R. Jakoby, M. Mikolajek, A. Friederich, C. Kohler, J. Binder","doi":"10.1109/EUMIC.2015.7345157","DOIUrl":"https://doi.org/10.1109/EUMIC.2015.7345157","url":null,"abstract":"This paper presents a novel topology and method for the fabrication of tunable ferroelectric components based on inkjet printing for phased arrays applications at C/X-Band. This method enables low voltage biased tunable phase shifters by inkjet printing of tunable dielectric thick films. The loaded line tunable phase shifter is tuned by integrated metal-insulator-metal (MIM) varactors. The MIM varactors are fabricated by photo lithography and subsequently inkjet printing of barium-strontium-titanate striplines, enabling a simple and reliable process. In comparison to coplanar capacitors, such MIM varactors require significantly lower DC-voltage for tuning. A tunability of 32 % at 8.5 GHz is achieved by applying only 25 V across a 1.2 μm thick BST film and a tunability of 46 % by applying 50 V. The 11 unit cells loaded line tunable phase shifter achieves a figure of merit (FoM) above 40 °/dB across 7 to 8.5 GHz by applying maximum 50 V tuning voltage. The size of the phase shifter is 1×0.45 cm2.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121004720","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
Epsilon near zero loaded magnetrons, design and realization Epsilon近零负载磁控管，设计与实现
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345798
N. Nasr Esfahani, K. Schunemann, N. Avtomonov, D. Vavriv
{"title":"Epsilon near zero loaded magnetrons, design and realization","authors":"N. Nasr Esfahani, K. Schunemann, N. Avtomonov, D. Vavriv","doi":"10.1109/EUMC.2015.7345798","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345798","url":null,"abstract":"In this paper, it is shown that employing the unit cell of an ENZ (epsilon near zero) medium in the slow wave structure of a spatial harmonic magnetron (SHM) can moderate the conflict between the simultaneous realization of large values of the quality factor and of the characteristic admittance which is a well-known issue in classical and spatial harmonic magnetrons. As the numerical simulations of the beam-wave interaction shows, simultaneous increase of the characteristic admittance and the quality factor makes the metamaterial loaded SHM superior to its conventional counterpart. The preliminary measurement results of the fabricated metamaterial loaded SHM are also presented in this paper.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125199213","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
Compact substrate integrated waveguide (SIW) components on paper substrate 纸基板上的紧凑基板集成波导元件
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345690
S. Moscato, N. Delmonte, L. Silvestri, M. Pasian, M. Bozzi, L. Perregrini
{"title":"Compact substrate integrated waveguide (SIW) components on paper substrate","authors":"S. Moscato, N. Delmonte, L. Silvestri, M. Pasian, M. Bozzi, L. Perregrini","doi":"10.1109/EUMC.2015.7345690","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345690","url":null,"abstract":"This paper presents the design, fabrication and testing of compact substrate integrated waveguide (SIW) components on paper substrate. These components are particularly suitable for the implementation of eco-friendly wireless systems for the future generation of wireless sensor networks (WSN) and of the Internet of Things (IoT). The use of SIW technology allows to implement waveguide-like components on different materials, providing easy fabrication, low loss, and complete shielding. The novel fabrication technology proposed in this paper is based on the use of stacked paper sheets with top and bottom aluminum foils, and the subsequent shape manufacturing by milling. The compactness of the proposed components derives from the use of half-mode and quarter-mode topologies. Straight interconnects and filters are designed and manufactured, to verify the proposed fabrication technique.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122848512","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 advanced tag detection technique for chipless RFID systems 无芯片RFID系统的先进标签检测技术
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345747
C. Divarathne, N. Karmakar
{"title":"An advanced tag detection technique for chipless RFID systems","authors":"C. Divarathne, N. Karmakar","doi":"10.1109/EUMC.2015.7345747","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345747","url":null,"abstract":"Chipless RFID systems have been identified as a major candidate to replace optical barcode systems in future. However, the main challenge is its less data encoding capacity. Researchers have attempted to overcome this by mainly improving the chipless tag design and the RFID reader architecture. However, they were using primitive tag detection techniques such as thresholds and moving averages. This paper presents a Maximum Likelihood (ML) based tag detection technique for chipless RFID systems. The detection technique does not require any channel knowledge and it jointly optimizes both the tag detection and the channel. The proposed technique is compatible with both frequency and time domain based chipless RFID readers. Chipless tags were designed in CST and the system model was simulated in MATLAB. The results show that the proposed tag detection technique allows to remove the guard-band used in multi-resonators permitting the tag data capacity to be doubled.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127998885","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
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