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2014 IEEE MTT-S International Microwave Symposium (IMS2014)最新文献

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Magnetic tunnel junction-based on-chip microwave phase and spectrum analyzer 基于磁隧道结的片上微波相位与频谱分析仪
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-08-01 DOI: 10.1109/MWSYM.2014.6848560
X. Fan, Yunpeng Chen, C. Bi, Yunsong Xie, J. Kolodzey, Jeffrey D. Wilson, R. Simons, Huaiwu Zhang, J. Xiao
{"title":"Magnetic tunnel junction-based on-chip microwave phase and spectrum analyzer","authors":"X. Fan, Yunpeng Chen, C. Bi, Yunsong Xie, J. Kolodzey, Jeffrey D. Wilson, R. Simons, Huaiwu Zhang, J. Xiao","doi":"10.1109/MWSYM.2014.6848560","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848560","url":null,"abstract":"A magnetic tunnel junction (MTJ)-based microwave detector is proposed and investigated. When the MTJ is excited by microwave magnetic fields, the relative angle between the free layer and pinned layer alternates, giving rise to an average resistance change. By measuring the average resistance change, the MTJ can be utilized as a microwave power sensor. Due to the nature of ferromagnetic resonance, the frequency of an incident microwave is directly determined. In addition, by integrating a mixer circuit, the MTJ-based microwave detector can also determine the relative phase between two microwave signals. Thus, the MTJ-based microwave detector can be used as an on-chip microwave phase and spectrum analyzer.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114940042","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
A W-band divide-by-1.5 injection-locked frequency divider in 90 nm CMOS process 一种90 nm CMOS制程的w波段/ 1.5注入锁定分频器
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-07-10 DOI: 10.1109/MWSYM.2014.6848332
Yen-Liang Yeh, Meng-Han Li, Hong-Yeh Chang
{"title":"A W-band divide-by-1.5 injection-locked frequency divider in 90 nm CMOS process","authors":"Yen-Liang Yeh, Meng-Han Li, Hong-Yeh Chang","doi":"10.1109/MWSYM.2014.6848332","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848332","url":null,"abstract":"A W-band divide-by-1.5 injection-locked frequency divider (ILFD) using 90 nm CMOS process is presented in this paper. Due to the fractional frequency division, the proposed divide-by-1.5 ILFD can be employed in a millimeter-wave local oscillation chain to avoid the injection pulling caused by the power amplifier. The measured input locking range is from 91 to 93.7 GHz, and the free-running oscillation frequency is 30.74 GHz. The dc supply voltage and power consumption are 0.8 V and 6.4 mW, respectively. The chip size is 0.86 × 0.87 mm2.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121493007","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
Ubiquitous computing techniques for two dimensional transmission line matrix method 二维传输线矩阵法的泛在计算技术
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-07-10 DOI: 10.1109/MWSYM.2014.6848631
P. So, W. Hoefer
{"title":"Ubiquitous computing techniques for two dimensional transmission line matrix method","authors":"P. So, W. Hoefer","doi":"10.1109/MWSYM.2014.6848631","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848631","url":null,"abstract":"The pervasiveness of handheld and mobile devices with sophisticated user interfaces and processing hardware has opened the door of ubiquitous computing to electromagnetic field modeling software. This paper reports our first implementation of the two-dimensional shunt-node Transmission Line Matrix (TLM) algorithm for Windows 8.1, a newly released operating environment that can run on a spectrum of computing hardware, from handheld devices (smart phones and small tablet pc), to laptop and desktop computers, and all the way to state-of-the-art engineering workstations. The ubiquitous computing strategy and modelling framework in this two-dimensional TLM software package can thus be used to harness computing power from a wide variety of computing hardware for electromagnetic field modelling.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"459 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134033320","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
An analytical approach to synthesis of diplexers with an optimal lumped-element junction model 用最优集总元结模型合成双工器的解析方法
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-07-10 DOI: 10.1109/MWSYM.2014.6848399
Ping Zhao, Ke-Li Wu
{"title":"An analytical approach to synthesis of diplexers with an optimal lumped-element junction model","authors":"Ping Zhao, Ke-Li Wu","doi":"10.1109/MWSYM.2014.6848399","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848399","url":null,"abstract":"This paper presents an analytical approach to synthesis of a diplexer with a lumped-element junction model. The approach is based on the synthesis theory for a bandpass filter with a general complex load. Both non-resonant node type and the resonator type of junctions are considered in a uniform way. Different from existing diplexer synthesis methods, the junction model is synthesized rather than fixed at the beginning, to optimally satisfy the required overall diplexer specifications. The new scheme is suitable for designing coaxial combline type of diplexer. For each type of junction, a synthesis example is given to demonstrate the effectiveness of the proposed approach.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121989966","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
Nonlinear measurement dedicated to non periodic pulse train for radar power amplifier characterization 用于雷达功率放大器特性的非周期脉冲序列非线性测量
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-07-10 DOI: 10.1109/MWSYM.2014.6848400
Vincent Bridier, D. Ducatteau, M. Olivier, Hans-Joachim Simon, F. Graux, P. Eudeline, G. Dambrine
{"title":"Nonlinear measurement dedicated to non periodic pulse train for radar power amplifier characterization","authors":"Vincent Bridier, D. Ducatteau, M. Olivier, Hans-Joachim Simon, F. Graux, P. Eudeline, G. Dambrine","doi":"10.1109/MWSYM.2014.6848400","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848400","url":null,"abstract":"A six port mixer based 20GHz nonlinear vector network analyzer (NVNA) dedicated to the characterization of radar power amplifier driven by non periodic pulsed signal is proposed. For the first time a mixer based NVNA is able to measure the fundamental and two harmonics simultaneously while using non periodic radar pulse train allowing measuring time domain waveforms and pulse to pulse measurement within actual radar conditions. The measurement is applied on an S-band 5W GaN on silicon HEMT.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124594935","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
Implementation of dual gate and drain dynamic voltage biasing to mitigate load modulation effects of supply modulators in envelope tracking power amplifiers 实现双栅极和漏极动态电压偏置以减轻包络跟踪功率放大器中电源调制器的负载调制效应
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-07-10 DOI: 10.1109/MWSYM.2014.6848336
P. Medrel, A. Delias, Patrick Augeau, Audrey Martin, G. Neveux, P. Bouysse, J. Nebus
{"title":"Implementation of dual gate and drain dynamic voltage biasing to mitigate load modulation effects of supply modulators in envelope tracking power amplifiers","authors":"P. Medrel, A. Delias, Patrick Augeau, Audrey Martin, G. Neveux, P. Bouysse, J. Nebus","doi":"10.1109/MWSYM.2014.6848336","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848336","url":null,"abstract":"This paper presents a combination of dynamic gate and drain biasing techniques applied to a S-Band - 10 W GaN power amplifier. A GaN-based drain supply modulator (DSM) and an integrated gate biasing circuit have been built and connected to a GaN RF power amplifier (RFPA). The complete circuit architecture is then implemented in a test bench for the study of the envelope tracking power amplifier (ETPA). The work reported here focuses on the nonlinear coupling between the drain supply modulator and the RF power amplifier and proposes a solution to mitigate the load modulation effect of the supply modulator that is prejudicial for the overall efficiency and linearity performances. It consists in implementing an appropriate dynamic gate bias control of the RF power amplifier. The experimental validation of the study is demonstrated here for a QAM-16 (2 MSymb/s) modulated carrier at 2.5 GHz. At 38 dBm output power, dynamic load variations of the drain supply modulator (in the 30-500Ω range) versus instantaneous input power level variations have been drastically reduced and maintained to a 40Ω average value. The measurement of the signal constellation diagram at the ETPA output was found to be a well suited way to optimize the tuning of bias trajectories. A measured minimal error vector magnitude (EVM) of 2% and a power added efficiency (PAE) of 40% are obtained when optimal tuning is reached.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124136835","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
Two-pole two-path tunable bandpass filter with multiple transmission zeros 具有多个传输零点的两极双路可调谐带通滤波器
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-07-10 DOI: 10.1109/MWSYM.2014.6848646
Chuan Ge, Xiaowei Zhu, Ling Tian, Wen-Cui Zhu
{"title":"Two-pole two-path tunable bandpass filter with multiple transmission zeros","authors":"Chuan Ge, Xiaowei Zhu, Ling Tian, Wen-Cui Zhu","doi":"10.1109/MWSYM.2014.6848646","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848646","url":null,"abstract":"This paper proposes a two-pole two-path mixed coupling tunable filter with a constant bandwidth. A novel frequency dependent I/O structure is presented to generate up to five adjustable transmission zeros (TZs) without increasing the order of the filter. Thus, the selectivity and the out-of-band rejection are enhanced simultaneously in a very compact size. With the coupling characteristic deeply analyzed, a constant bandwidth tunable filter covering from 1.1GHz to 1.38GHz is implemented. The filter has a 3-dB bandwidth of 85±5 MHz and an insertion loss of 1.38-2.1 dB with an excellent performance in selectivity. The experimental results agree with the theory and the simulations very well.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121092436","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
A semi-analytical model for dense via structures with shared antipad configurations 具有共享反垫位的密集孔道结构的半解析模型
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-07-10 DOI: 10.1109/MWSYM.2014.6848396
Xichen Guo, D. Jackson, Ji Chen
{"title":"A semi-analytical model for dense via structures with shared antipad configurations","authors":"Xichen Guo, D. Jackson, Ji Chen","doi":"10.1109/MWSYM.2014.6848396","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848396","url":null,"abstract":"We present a semi-analytical model for dense vias in an infinite parallel-plate environment with a shared-antipad configuration. The network parameters are estimated based on reciprocity. The field from the reciprocal source is highly localized, making the mode matching computation converge very fast. In addition, the near field can be expressed in a closed-form, making the method computationally efficient. Numerical examples demonstrate the efficiency and accuracy of the proposed algorithm.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130142564","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
Intel Labs Mexico - Leading Industrial Research in Latin America 英特尔实验室墨西哥-领先的工业研究在拉丁美洲
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-07-10 DOI: 10.1109/MWSYM.2014.6848678
J. R. Camacho-Perez, G. Hernández‐Sosa, A. Alcocer-Ochoa, Carlos A. Lopez, A. Zenteno, Juan C. Cervantes-González, Arturo Veloz, Hector Cordourier, Horacio Visairo-Cruz
{"title":"Intel Labs Mexico - Leading Industrial Research in Latin America","authors":"J. R. Camacho-Perez, G. Hernández‐Sosa, A. Alcocer-Ochoa, Carlos A. Lopez, A. Zenteno, Juan C. Cervantes-González, Arturo Veloz, Hector Cordourier, Horacio Visairo-Cruz","doi":"10.1109/MWSYM.2014.6848678","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848678","url":null,"abstract":"Intel Labs is a research arm at Intel focused on delivering innovations to fuel Intel's growth and technology leadership. Intel Labs Mexico, one of the research groups of Intel Labs globally, has been leading research and technology development in Mexico and Latin America since its creation in 2005. This paper provides an overview of the main research areas at Intel Labs Mexico as well as the corresponding published contributions.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132059087","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
Continuous wave terahertz inspection of glass fiber reinforced plastics with semi-automatic 3-D image processing for enhanced defect detection 基于半自动三维图像处理的玻璃纤维增强塑料连续波太赫兹检测增强缺陷检测
2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-06-01 DOI: 10.1109/MWSYM.2014.6848486
F. Friederich, E. Cristofani, C. Matheis, J. Jonuscheit, R. Beigang, M. Vandewal
{"title":"Continuous wave terahertz inspection of glass fiber reinforced plastics with semi-automatic 3-D image processing for enhanced defect detection","authors":"F. Friederich, E. Cristofani, C. Matheis, J. Jonuscheit, R. Beigang, M. Vandewal","doi":"10.1109/MWSYM.2014.6848486","DOIUrl":"https://doi.org/10.1109/MWSYM.2014.6848486","url":null,"abstract":"The increasing industrial application of fiber reinforced plastics demands developments of new techniques for non-destructive testing. The sub-terahertz frequency band has proved to be a noteworthy option for this task. Composite structures or laminates can be inspected for foreign inclusions, delaminations, debonds, etc., using sub-terahertz sensors during the manufacturing process or maintenance. In this contribution we present our results using a frequency modulated continuous wave terahertz imaging system in comparison with conventional NDT measurements on several different GFRP samples. Thereby a semi-automatic terahertz image processing approach for enhanced defect detection is applied.","PeriodicalId":262816,"journal":{"name":"2014 IEEE MTT-S International Microwave Symposium (IMS2014)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115166734","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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