发布求助
文献互助 智能选刊 最新文献

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

筛选
英文 中文
A novel extraction approach of extrinsic and intrinsic parameters of InGaAs/GaN pHEMTs 一种新的InGaAs/GaN pHEMTs的外在和内在参数提取方法
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.2015.7324994
Andong Huang, Z. Zhong, Yong-xin Guo, Wen Wu
{"title":"A novel extraction approach of extrinsic and intrinsic parameters of InGaAs/GaN pHEMTs","authors":"Andong Huang, Z. Zhong, Yong-xin Guo, Wen Wu","doi":"10.1109/IMWS-AMP.2015.7324994","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7324994","url":null,"abstract":"A novel extraction approach of extrinsic and intrinsic parameters of InGaAs/GaN pHEMTs is presented, for the first time, artificial bee colony algorithm is applied to the global-optimization based parameter extraction and a novel intrinsic Y-parameter error function is proposed, which is not sensitive to noise and measurement uncertainty, and also highly consistent to the overall S-parameter error function. The extrinsic elements are optimized at multi-bias points and the intrinsic ones at specific bias points. Only broad ranges of extrinsic parameters are required, and the extraction is unique and accurate. This method has been verified by 2 × 75 and 4 ×100 um gate width InGaAs pHEMTs from 1 GHz to 40 GHz. Excellent agreement is achieved between the measured and modeled S-parameters at all the biases and the conservation of the gate charge is well satisfied which further validates this novel extraction method.","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":"46 77","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":"91510846","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
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
A beam-steerable metamaterial lens using varactor diodes 一种使用变容二极管的光束可操纵的超材料透镜
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.2015.7324902
Z. Wu, W. Tang, T. Cui
{"title":"A beam-steerable metamaterial lens using varactor diodes","authors":"Z. Wu, W. Tang, T. Cui","doi":"10.1109/IMWS-AMP.2015.7324902","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7324902","url":null,"abstract":"A method to design and realize the beam-steerable lens is proposed and tested in this paper. Such a lens is composed with varactor-diodes-loaded metamaterials. The electromagnetic properties of the lens, in particular, the refractive index distribution, can be controlled by reverse bias voltages added to the metamaterials. Therefore, the lens obtains flexible beam forming functions when a variety of reverse bias voltages are applied. A prototype of the lens is manufactured, and its beam-forming function is successfully demonstrated in experiment.","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":"26 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":"78663187","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
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
An improved equivalent circuit model for C/D CRLH TL metamaterials 一种改进的C/D CRLH TL超材料等效电路模型
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.2015.7325030
N. Kou, Yan Shi, Long Li
{"title":"An improved equivalent circuit model for C/D CRLH TL metamaterials","authors":"N. Kou, Yan Shi, Long Li","doi":"10.1109/IMWS-AMP.2015.7325030","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7325030","url":null,"abstract":"This paper proposes an improved equivalent circuit model for the composite right/left-handed transmission line (CRLH TL) and Dual-CRLH (DCRLH) TL unit cells. A pseudo-inverse technique is first implemented to extract the primary equivalent circuit. By using the conventional filter synthesis technique, the retrieval primary equivalent circuit is further transformed to a typical band-pass/band-stop filter circuit as the secondary equivalent circuit. With two-step retrieval procedure, the response of the secondary equivalent circuit can more accurately agree with that of CRLH/DCRLH TL unit cell in magnitude and phase of S parameters. Numerical results are given to demonstrate good performance of the proposed synthesis method.","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":"83 1-2 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":"78217588","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
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
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
3-D near-field millimeter wave imaging based on stepped frequency system 基于阶跃频率系统的三维近场毫米波成像
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.2015.7324913
Yu Sun, Wei-dong Hu, Xiangxin Meng, X. Lv
{"title":"3-D near-field millimeter wave imaging based on stepped frequency system","authors":"Yu Sun, Wei-dong Hu, Xiangxin Meng, X. Lv","doi":"10.1109/IMWS-AMP.2015.7324913","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7324913","url":null,"abstract":"Millimeter wave have many advantages compared with microwave, a millimeter wave radar system based on stepped frequency pulse signal can be used to near-field imaging. The wave number domain algorithm is used to mechanical scanning data that achieved by a two-dimensional (2-D) planar aperture with the radar system to reconstruct three-dimensional (3-D) reflectivity image. Results show the efficiency and accurate image reconstruction and highly resolution.","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":"64 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":"78197385","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 differentially-driven rectifier for enhanced RF power harvesting 差分驱动整流器，用于增强射频功率采集
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.2015.7324976
Hucheng Sun, Guangzu Xu
{"title":"A differentially-driven rectifier for enhanced RF power harvesting","authors":"Hucheng Sun, Guangzu Xu","doi":"10.1109/IMWS-AMP.2015.7324976","DOIUrl":"https://doi.org/10.1109/IMWS-AMP.2015.7324976","url":null,"abstract":"This paper presents a differentially-driven rectifier for enhanced RF power harvesting. Based on a traditional one-fed rectifier, a differentially-driven rectifier is designed, whose RF-to-DC power conversion efficiency (PCE) is roughly the same as that of the traditional one. The performance of the differentially-driven rectifier is verified by both simulation and measurement results. The measured RF-to-DC PCE of the proposed differentially-driven rectifier achieves its maximum value of 73.9% when the input power level is 9.4 dBm.","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":"45 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":"78663554","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信