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2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)最新文献

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The tunable properties of Mn doped (Ba, Sr)TiO3 thin film varactor at low temperature Mn掺杂(Ba, Sr)TiO3薄膜变容管在低温下的可调性能
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/IMWS-AMP.2015.7324956
Fengjin Xia, Xu Wang, Jia Wang, Yun Wu, Y. Bian, Chunguang Li, Xueqiang Zhang, Guoqiang Li, D. Bai, Hong Li, Liang Sun, M. Sun, Yusheng He
{"title":"The tunable properties of Mn doped (Ba, Sr)TiO3 thin film varactor at low temperature","authors":"Fengjin Xia, Xu Wang, Jia Wang, Yun Wu, Y. Bian, Chunguang Li, Xueqiang Zhang, Guoqiang Li, D. Bai, Hong Li, Liang Sun, M. Sun, Yusheng He","doi":"10.1109/IMWS-AMP.2015.7324956","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7324956","url":null,"abstract":"Mn doped ferroelectric (Ba, Sr)TiO3 (Ba0.05Sr0.95Ti0.95Mn0.05O3, BSTM) thin films were prepared on the MgO single crystal substrate by using pulsed laser deposition technique. The dielectric properties of the varactor composed by this thin film was investigated by using a superconductor resonator at the liquid nitrogen temperature. Measurement results indicated that the thin film showed high quality-factor of up to 140, with a tunability of 72% at the bias voltage of 210 V. The loss tangent of the varactor varied from 0.02 to 0.008 with the bias changed from 0 V to 210 V. Both the low dielectric loss and tunable properties of the BSTM thin film varactor are useful for tunable microwave applications.","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"34 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74546167","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
Transformer-based dual-mode VCO for multi-mode multi-standard receiver 基于变压器的多模多标接收机双模压控振荡器
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/IMWS-AMP.2015.7324996
Xiangning Fan, Xiaoyang Shi, Li Tang
{"title":"Transformer-based dual-mode VCO for multi-mode multi-standard receiver","authors":"Xiangning Fan, Xiaoyang Shi, Li Tang","doi":"10.1109/IMWS-AMP.2015.7324996","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7324996","url":null,"abstract":"The proposed VCO in this paper is used in frequency synthesizer for multi-mode, multi-standard wireless transceiver. The overall scheme uses two VCOs, each VCO adopts transformer-based structure. On-chip transformer uses coplanar central tap structure and adopts the top metal winding, while primary and secondary inductances adopt octagon differential structure. Electromagnetic field (EM) simulation is carried out by using ADS Momentum. Negative conductance unit adopts the current reuse of cross coupled MOSFET. Oscillation mode can be chosen by switch. The primary and secondary inductances of the transformer connect 4 bit binary switch capacitor array and varactor under different oscillation mode to extend the range of frequency adjustment. Measurement results show that the frequency range is from 1.2GHz to 7.3GHz and the phase noise at 1MHz offset is less than -80dBc/Hz in the whole frequency range.","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"49 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76458218","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
Plasmonic beam control in strongly coupled graphene sheet arrays 强耦合石墨烯片阵列中的等离子体束控制
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/IMWS-AMP.2015.7324969
B. Wang
{"title":"Plasmonic beam control in strongly coupled graphene sheet arrays","authors":"B. Wang","doi":"10.1109/IMWS-AMP.2015.7324969","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7324969","url":null,"abstract":"We investigate the propagation of surface plasmon polaritons (SPPs) in the graphene sheet arrays (GSA) consisting of periodically stacking graphene sheets. Thanks to the strong coupling, SPPs experience a linear diffraction relation in the GSAs. The unique feature is helpful in restrain diffraction of SPPs during propagation. By connecting two GSAs with different periods, negative refraction of SPPs in the heterointerface may occur. In addition, we demonstrate accelerated and decelerated beams in aperiodic GSAs, resulting in the beam routing effect.","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"129 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76597593","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
Graphene-loaded reconfigurable CPW interdigital capacitors 石墨烯负载可重构CPW数字间电容器
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/IMWS-AMP.2015.7325039
T. Zhou, Xi-Wang Dai, Zhi-Qun Cheng, Lingling Sun
{"title":"Graphene-loaded reconfigurable CPW interdigital capacitors","authors":"T. Zhou, Xi-Wang Dai, Zhi-Qun Cheng, Lingling Sun","doi":"10.1109/IMWS-AMP.2015.7325039","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7325039","url":null,"abstract":"Graphene is a monolayer of carbon atoms which exhibits attractive electromagnetic properties amenable to millemeter wave and terahertz applications. Graphene-loaded CPW interdigital capacitors with reconfigurable responses will be studied in this paper. The graphene film is used as an overlay of the conventional metal interdigital capacitor for broadband impedance matching. The proposed capacitors will be able to provide reconfigurable performance by exploiting the tuning property of graphene film. The effect of varying the surface impedance of the graphene film is parametrically examined to ultra broadband impedance bandwidth. The capacitor values can be tuned, the losses are minimized by confining the graphene film to a small area outside the interdigital capacitor. The tuning capability is one of the important features of graphene based capacitors.","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"38 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83162436","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
Wideband RCS analysis of PEC objects by combining FMIR-MoM with barycentric subdivision-based quadrature technique 结合FMIR-MoM和基于质心细分的正交技术对PEC对象进行宽带RCS分析
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/IMWS-AMP.2015.7325009
P. Du, Yu Shao, J. Zhang
{"title":"Wideband RCS analysis of PEC objects by combining FMIR-MoM with barycentric subdivision-based quadrature technique","authors":"P. Du, Yu Shao, J. Zhang","doi":"10.1109/IMWS-AMP.2015.7325009","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7325009","url":null,"abstract":"In this paper, the combination of FMIR-MoM with barycentric subdivision-based quadrature is utilized to analyze the Wideband RCS of the PEC objects. By using the FMIR-MoM, the electromagnetic properties over a wide frequency band can be quickly obtained. In this method, smaller frequency band division is not needed while it is required in the interpolation techniques. The memory requirement is comparable to the later ones. However, the special treatment is yet needed when dealing with the singularity term. The barycentric subdivision-based quadrature is applied in impedance fill-in, in which the singular integral can be avoided. Two numerical examples are included to test the accuracy.","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"3 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81882642","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
Status and challenges of inkjet printed RF and THz structures 喷墨打印射频和太赫兹结构的现状和挑战
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/IMWS-AMP.2015.7324985
A. Traille, M. Tentzeris
{"title":"Status and challenges of inkjet printed RF and THz structures","authors":"A. Traille, M. Tentzeris","doi":"10.1109/IMWS-AMP.2015.7324985","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7324985","url":null,"abstract":"Inkjet printing is a low-cost, additive process that has enabled various disruptive technologies that combine new materials with novel multidisciplinary operation concepts. Beyond prototyping, their inherent scalability could make them good candidate for commercial/mass production applications such as large area structural monitoring, distributed sensing and IoT applications. This overview explores the reliability and the great potential of these novel technologies when applied to high performance RF and THz devices of the future.","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"6 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82484879","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 wideband slot antenna for moblie phone applications 用于移动电话应用的宽带槽天线
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/APCAP.2016.7843269
Weihua Zong, Xiangyang Wei
{"title":"A wideband slot antenna for moblie phone applications","authors":"Weihua Zong, Xiangyang Wei","doi":"10.1109/APCAP.2016.7843269","DOIUrl":"https://doi.org/10.1109/APCAP.2016.7843269","url":null,"abstract":"A wideband impedance matching technique is presented on slot antenna for mobile handset applications at lower frequency band. The antenna is printed on a 60*115 mm2 FR-4 substrate with 0.8 mm thickness. Two rectangular slots are etched on the ground with open ends at opposite edges. One of the two is called the main slot with size of 5 mm*50 mm, the other one is called the additional slot with size of 40 mm*1 mm. The main slot is fed by a 50 Ω microstrip connected with a folded strip surrounding around the boundary of the main slot inside the main slot region. The strip with folded shape can induce the current flowing around the main slot from the close end to the open end on the ground, which results in the increase of the current distribution path and the decrease of the frequency of the first resonant mode. The additional slot is etched on the top portion of the ground above the main slot to excite more current distributing around the main slot region. With the technique, two resonant modes are excited at the lower frequency band, and a wide frequency bandwidth of 0.82~1.18 GHz is obtained.","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"48 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82833409","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
Magnetically switchable graphene coupler and application to a magnetic probe 磁开关石墨烯耦合器及其在磁探头上的应用
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/IMWS-AMP.2015.7324899
N. Chamanara, C. Caloz
{"title":"Magnetically switchable graphene coupler and application to a magnetic probe","authors":"N. Chamanara, C. Caloz","doi":"10.1109/IMWS-AMP.2015.7324899","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7324899","url":null,"abstract":"A magnetically switchable graphene based coupler is proposed and analyzed. The proposed coupler is composed of chemically or electrically p- and n-doped graphene strips with coupled plasmonic edge modes. Based on this coupler, a plasmonic device with application as a magnetic sensor is proposed.","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"03 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86520449","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
Efficient ADE-FDTD method for modelling graphene-based structures 基于ADE-FDTD的高效石墨烯结构建模方法
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/IMWS-AMP.2015.7324900
Xiang-hua Wang, Yang Guo, Jun Hu, W. Yin
{"title":"Efficient ADE-FDTD method for modelling graphene-based structures","authors":"Xiang-hua Wang, Yang Guo, Jun Hu, W. Yin","doi":"10.1109/IMWS-AMP.2015.7324900","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7324900","url":null,"abstract":"A simple and efficient auxiliary-difference-equation finite-difference time-domain (ADE-FDTD) method for modelling graphene-based structures is presented in this paper. By considering the graphene sheet as a polarization current source characterized by an auxiliary equation (AE), the proposed method can be easily adopted to simulate graphene-based structures biased by electrostatic or magnetostatic field, respectively. The accuracy of proposed method is verified in comparison with the analytical results.","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"1 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88962196","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
Experimental 0.2THz radar system for RCS measurement 用于RCS测量的实验0.2THz雷达系统
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI: 10.1109/IMWS-AMP.2015.7324916
Yanwen Jiang, B. Deng, Hongqiang Wang, Yuliang Qin, Ruijun Wang, Qi Yang, Jingkun Gao
{"title":"Experimental 0.2THz radar system for RCS measurement","authors":"Yanwen Jiang, B. Deng, Hongqiang Wang, Yuliang Qin, Ruijun Wang, Qi Yang, Jingkun Gao","doi":"10.1109/IMWS-AMP.2015.7324916","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7324916","url":null,"abstract":"A terahertz (THz) radar system with the highest frequency up to 0.22THz is described in this paper. The system is built based on the microwave up-conversion technology and with a good performance in operating range. The radar cross section (RCS) measurement of different objects, namely, corner reflector, cylinder, rectangular plate and a scale car model, is performed based on the THz system. By the comparison of the measurement results of the rectangular plates with different surface characterization, a conclusion is reached that the detailed surface has a considerable influence on RCS values. Moreover, the RCS values of the car model with different incident angles are obtained based on the measurement experiments.","PeriodicalId":6625,"journal":{"name":"2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)","volume":"49 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88875728","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
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