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2020 IEEE MTT-S International Wireless Symposium (IWS)最新文献

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An Enhanced Automated Neuro-Model Generation Algorithm for Parametric Modeling of Microwave Components 一种用于微波元件参数化建模的增强自动神经模型生成算法
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/IWS49314.2020.9359924
W. Na, Wenyuan Liu, Wanrong Zhang
{"title":"An Enhanced Automated Neuro-Model Generation Algorithm for Parametric Modeling of Microwave Components","authors":"W. Na, Wenyuan Liu, Wanrong Zhang","doi":"10.1109/IWS49314.2020.9359924","DOIUrl":"https://doi.org/10.1109/IWS49314.2020.9359924","url":null,"abstract":"This paper presents an enhanced automated model generation (AMG) algorithm using neural networks (NNs). AMG performs automated sampling of training/testing data and automated NN structure adaptation to obtain a compact NN model of user-required accuracy with suitable amount of data. The proposed enhanced AMG performs data sampling in a stage-wise manner. In each stage, instead of sampling along all dimensions of the input space, the proposed AMG distinguishes the input dimension which influences the nonlinearity of the model behavior most in current stage, then generates additional training samples along this input dimension. Compared to existing AMG, the proposed algorithm can reduce the amount of data needed for NN modeling, especially in the case of multidimensional parametric modeling of microwave devices. Examples including automated modeling of MOSFET and bandpass filter are presented to demonstrate the validity of the proposed AMG.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133250097","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
Planar Bias-tee Circuit Using Gradient-meander Line for Broad-bandwidth Application 基于梯度弯曲线的平面偏置电路在宽带中的应用
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/iws49314.2020.9360199
Zhongmao Li, Wen Fu, Jingwen Cheng, Junjian Yin, Xin Qiu, Tianchun Ye
{"title":"Planar Bias-tee Circuit Using Gradient-meander Line for Broad-bandwidth Application","authors":"Zhongmao Li, Wen Fu, Jingwen Cheng, Junjian Yin, Xin Qiu, Tianchun Ye","doi":"10.1109/iws49314.2020.9360199","DOIUrl":"https://doi.org/10.1109/iws49314.2020.9360199","url":null,"abstract":"This paper presented a new gradient-meander line based on an integrated and fully planar bias tee. In the case of constant total length, the use of gradient-meander layout improves the performance of inductance. The formula of gradient-meander line inductance is given. The simulation result is consistent with the formula. Inductors and bias-tee of different sizes are designed on 0.25um GaAs substrate. Electromagnetic simulations in the whole 20~100 GHz communication band, show that the optimized transition presents a return loss (RL) of at least 20 dB, an insertion loss (IL) of at most 2.6 dB, and a RF-to-DC path isolation (IS) of at least 15 dB.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"147 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115959285","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
Low Scattering Antenna with Resistive and Coding Metasurface 电阻编码超表面低散射天线
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/IWS49314.2020.9360094
M. Saleem, Guomin Yang, Rooman Iltaf
{"title":"Low Scattering Antenna with Resistive and Coding Metasurface","authors":"M. Saleem, Guomin Yang, Rooman Iltaf","doi":"10.1109/IWS49314.2020.9360094","DOIUrl":"https://doi.org/10.1109/IWS49314.2020.9360094","url":null,"abstract":"In this paper, a low-scattering patch antenna is proposed by using the diffusive reflective screen, which is a combination of resistive and coding metasurface (RCM) for the reduction of wideband backscattered energy level. Three different array blocks are configured by combining two coding metasurface elements, and a absorptive component to get a remarkable RCS reduction from 7 GHz to 18 GHz but also overall reduction is achieved from 5 GHz to 22 GHz. It is also worth mentioning that the bistatic RCS of the proposed prototype is realized at different frequencies. Simulations of reference and proposed prototype have been discussed.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114929009","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
Wideband Single-Fed Circularly Polarized Antenna for RFID Application 应用于RFID的宽带单馈圆极化天线
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/IWS49314.2020.9360128
Ruiqi Wang, Zhan Wang, Yuandan Dong
{"title":"Wideband Single-Fed Circularly Polarized Antenna for RFID Application","authors":"Ruiqi Wang, Zhan Wang, Yuandan Dong","doi":"10.1109/IWS49314.2020.9360128","DOIUrl":"https://doi.org/10.1109/IWS49314.2020.9360128","url":null,"abstract":"A novel single-fed wideband stacked circularly polarized (CP) microstrip antenna with a perturbated square ring is proposed in this work. This antenna has a relatively small size since four symmetric square slots and a cross-shaped slot are incorporated into the square patch, which extends the current path and reduces the overall size. The antenna bandwidth is substantially enhanced with the combination of a perturbated square ring and a slot-loaded parasitic patch. All the substrates are made by low-cost FR4 material. LHCP radiation is implemented by choosing the position of the structure perturbation in the square ring. Good agreement is observed between measurement and simulation. The measured −10 dB bandwidth, 4 dB axial ratio and peak gain is 15.3 % (853–993 MHz), 880–945 MHz, and 7.2 dBic, respectively. The proposed CP antenna demonstrates advantages of a compact size, low-cost, wideband, and good radiation performance, which is suitable for RFID reader application.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"223 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116029613","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 circularly polarized low-profile Metasurface antenna based on CPW feed 一种基于CPW馈源的圆极化低轮廓超表面天线
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/iws49314.2020.9359984
Changqing Liu, Liang Zhang, Shijie Huang, Chao Wang, Xingchuan Yu, Xianliang Wu
{"title":"A circularly polarized low-profile Metasurface antenna based on CPW feed","authors":"Changqing Liu, Liang Zhang, Shijie Huang, Chao Wang, Xingchuan Yu, Xianliang Wu","doi":"10.1109/iws49314.2020.9359984","DOIUrl":"https://doi.org/10.1109/iws49314.2020.9359984","url":null,"abstract":"A low-profile circularly polarized Metasurfaces antenna based on compact coplanar waveguide (CPW) feed was proposed. The Metasurfaces consists of 16 periodic square-cut metal patches. An hourglass coupled slot was adopted to achieve broadband impedance matching. The antenna has a simple structure and a low cross section, and it can be implemented by a layer of a printed circuit substrate. A circular polarized wave is generated by changing the size of the cut angle of the Metasurfaces, and at the same time, the impedance bandwidth can be widened. To verify the simulation results, a 1λ0 ×1λ0 ×0.05λ0(at 10 GHz) model antenna was fabricated and measured. The simulation and measurement results show good consistency. The test results show that the -10dB return loss bandwidth reaches 45.3 %, and the circular polarization axis ratio(AR) is less than 3dB with a bandwidth of 18.5%.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115327921","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
High Gain Low-Profile Omnidirectional Yagi-Uda Array Antenna 高增益低轮廓全向八木田阵列天线
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/IWS49314.2020.9360017
Shu Lin, S. Liao, Yang Yang, Q. Xue, W. Che
{"title":"High Gain Low-Profile Omnidirectional Yagi-Uda Array Antenna","authors":"Shu Lin, S. Liao, Yang Yang, Q. Xue, W. Che","doi":"10.1109/IWS49314.2020.9360017","DOIUrl":"https://doi.org/10.1109/IWS49314.2020.9360017","url":null,"abstract":"This paper proposes a novel Yagi-Uda array antenna that can realize high gain omnidirectional pattern under a low profile of 0.11λ0. The proposed antenna is composed of a via-shorted circular patch antenna as the driven element and three annular open-cavity magnetic dipoles as directors. The overall structure is both rotational symmetric and symmetric about the azimuth plane, which leads to a symmetrical pattern in the elevation plane and omnidirectional high gain pattern in the azimuth plane. Simulation results show that the proposed antenna can work in the impedance bandwidth from 4.82 GHz to 5.4 GHz (10.9%). The peak gain of antenna is 4dBi at 5.3 GHz with good omnidirectivity. Thanks to the open-cavity magnetic dipole directors introduced, compared with the case with only the driven element, the omnidirectional gain is improved by 5.7 to 7.8dBi.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123889099","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 Test Scheme for Broadband T/R Module Based on SiP 基于SiP的宽带收发模块测试方案
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/IWS49314.2020.9360100
Xi Fu, Qing Guo, Xiaopo Wu
{"title":"A Test Scheme for Broadband T/R Module Based on SiP","authors":"Xi Fu, Qing Guo, Xiaopo Wu","doi":"10.1109/IWS49314.2020.9360100","DOIUrl":"https://doi.org/10.1109/IWS49314.2020.9360100","url":null,"abstract":"This paper puts forward and verifies a scheme to repeatedly and efficiently test wideband T/R module based on system-in-package(SiP) with a non-coaxial package. The proposed test fixture consists of a test socket and test printed circuit board (PCB). The test socket with coaxial elastic probes plays an important role in realizing the interconnection between T/R module and test PCB, which fabricated on Rogers 4350 substrate. A broadband T/R module based on SiP is selected for verification and the test result shows the feasibility of the test scheme. All in all, this paper successfully proposes, characterizes, and verifies a test scheme for the wideband T/R module based on SiP.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125244277","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
Multilayer SIW Filter For Advanced Packaging Based On Glass Substrates 基于玻璃基板的先进封装多层SIW滤波器
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/IWS49314.2020.9359936
Shicheng Yang, Meijuan Xu, Xuzhou Jia, Wei Jiang
{"title":"Multilayer SIW Filter For Advanced Packaging Based On Glass Substrates","authors":"Shicheng Yang, Meijuan Xu, Xuzhou Jia, Wei Jiang","doi":"10.1109/IWS49314.2020.9359936","DOIUrl":"https://doi.org/10.1109/IWS49314.2020.9359936","url":null,"abstract":"a multilayer SIW (Substrate Integrated Waveguide) filter on glass substrates has been designed, fabricated and measured for potential utilization in advanced 3D packaging applications. Specifically, the SIW topology is chosen to use the top and bottom metal cover of the SIW cavities as the gold-to-gold bonding surfaces. The direct bonding serves as the electrical and mechanical connections at the same time. The fabricated filter operates at X band and the insertion loss is about 2.2 dB with the return loss better than 15dB. In addition, the fabrication is fully compatible with the conventional thin film fabrication process. In this article, the filter's design, fabrication process and the measurements are reported.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129851702","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
Identification Methods with Different Digital Predistortion Models for Power Amplifiers with Strong Nonlinearity and Memory Effects 具有强非线性和记忆效应的功率放大器的不同数字预失真模型识别方法
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/IWS49314.2020.9360062
Siqi Wang, Wenhui Cao, T. Eriksson
{"title":"Identification Methods with Different Digital Predistortion Models for Power Amplifiers with Strong Nonlinearity and Memory Effects","authors":"Siqi Wang, Wenhui Cao, T. Eriksson","doi":"10.1109/IWS49314.2020.9360062","DOIUrl":"https://doi.org/10.1109/IWS49314.2020.9360062","url":null,"abstract":"Different methods have been used to identify a digital predistortion (DPD) model coefficients in power amplifier (PA) linearization, especially direct and indirect learning architecture (DLA/ILA), and iterative learning control (ILC) technique, etc. A comparison is made in this paper under the scenario of a PA with strong nonlinearity. Analysis of DLA and ILC shows their similarity. However DLA works only with linear-in-parameter models, excluding the new emerging neural network models which has shown a good linearization accuracy with ILC according to experimental results.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130328023","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
Perfect Optical Vortex Beam for Optical Communication
2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI: 10.1109/IWS49314.2020.9359986
Mengmeng Li, Zhongyi Guo, Juan Wang
{"title":"Perfect Optical Vortex Beam for Optical Communication","authors":"Mengmeng Li, Zhongyi Guo, Juan Wang","doi":"10.1109/IWS49314.2020.9359986","DOIUrl":"https://doi.org/10.1109/IWS49314.2020.9359986","url":null,"abstract":"Concentric perfect optical vortex beam(CPOV) is a significant light field which pay much attention. Here, we demonstrate the CPOV beam be used in Free-space optical communications, which can increase capacity at finite aperture. The result shows the CPOV beam could be decoded simply via the conjugate beam interference method. Moreover, we design a communication system and realize the transmission of pixel value. Furthermore, the intensity of the perfect optical vortex(pOV) beam in the outermost decreases with the number of POV beam increasing, and will slowly decrease. For 8 POV beams, the light intensity of the outermost POV beam is about 5% lower than that of its neighbor.","PeriodicalId":301959,"journal":{"name":"2020 IEEE MTT-S International Wireless Symposium (IWS)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126620312","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
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