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2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)最新文献

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Discussion of Key Problems on Reconstruction of Semi-anechoic Chamber in a Shielding Enclosure 屏蔽罩半消声室重建关键问题探讨
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/CSRSWTC50769.2020.9372455
Rui Chen, Jianxuan Li, Yong Zhang, Chunquan He
{"title":"Discussion of Key Problems on Reconstruction of Semi-anechoic Chamber in a Shielding Enclosure","authors":"Rui Chen, Jianxuan Li, Yong Zhang, Chunquan He","doi":"10.1109/CSRSWTC50769.2020.9372455","DOIUrl":"https://doi.org/10.1109/CSRSWTC50769.2020.9372455","url":null,"abstract":"In this paper, some problems are discussed on the reconstruction of semi-anechoic chamber in a non-standard size shielding enclosure, such as structural, grounding, lighting, ventilation system and selection of shielding material. The reconstructed semi-anechoic chamber has good performance, the two indicators of shielding effectiveness and background noise meet the requirement in GJB151A-1997 and GJB151B-2013, EMC test can be conducted in the new semi-anechoic chamber. It is feasible and cost-effective to transform a non-standard size old shielding enclosure into a semi-anechoic chamber. This paper has some reference for the similar transformation needs.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"300 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126914418","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
Equivalent Circuit Model Analysis of Artificial Electromagnetic Metamaterials Loaded with Plasma 载等离子体的人工电磁超材料等效电路模型分析
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/CSRSWTC50769.2020.9372443
Chuanchuan Xie, Xiaoping Li, Guoxiang Dong
{"title":"Equivalent Circuit Model Analysis of Artificial Electromagnetic Metamaterials Loaded with Plasma","authors":"Chuanchuan Xie, Xiaoping Li, Guoxiang Dong","doi":"10.1109/CSRSWTC50769.2020.9372443","DOIUrl":"https://doi.org/10.1109/CSRSWTC50769.2020.9372443","url":null,"abstract":"In this paper, the equivalent circuit model is proposed for the analysis of an Jerusalem cross artificial electromagnetic metamaterial structure embedded in a plasma layer. For this, a method combining full-wave simulation and microwave network theory is adopted to simulate the reflection coefficient curve of the metamaterial loaded with plasma in a frequency range of 1–30 GHz. The parameters of circuit elements are extracted using the genetic algorithm, so that the reflection coefficient calculated using the equivalent circuit model and the curve obtained by CST software simulation almost coincide within a selected frequency range. The equivalent circuit model theory will theoretically predict the electromagnetic properties of plasma artificial electromagnetic metamaterials, and provide theoretical guidance for artificial design of plasma artificial electromagnetic metamaterials.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126931304","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
Target Detection Method of Remote Sensing Image Based on Deep Learning 基于深度学习的遥感图像目标检测方法
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/csrswtc50769.2020.9372469
Guoping You, Yingli Zhu
{"title":"Target Detection Method of Remote Sensing Image Based on Deep Learning","authors":"Guoping You, Yingli Zhu","doi":"10.1109/csrswtc50769.2020.9372469","DOIUrl":"https://doi.org/10.1109/csrswtc50769.2020.9372469","url":null,"abstract":"With the rapid development of aerospace and sensing technologies, the remote sensing technology of various countries all over the world has reached a relatively high level. It is an important part of machine learning field to apply deep learning to target detection. Based on the target detection of remote sensing image, this paper analyzes the existing target detection algorithms of remote sensing image and studies the optimal solution based on deep learning.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123377408","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
Research on TWT Frame Electron Gun Core Component Fabrication Technology 行波管框架电子枪核心部件制造技术研究
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/CSRSWTC50769.2020.9372570
Jian Wang, Wen Huang
{"title":"Research on TWT Frame Electron Gun Core Component Fabrication Technology","authors":"Jian Wang, Wen Huang","doi":"10.1109/CSRSWTC50769.2020.9372570","DOIUrl":"https://doi.org/10.1109/CSRSWTC50769.2020.9372570","url":null,"abstract":"In this paper, a typical Space traveling wave tube (TWT) electron gun frame structure was optimized, and some special sealing and laser beam welding (LBW) dies was developed. As the core component of the electron gun, the anode frame component was the most difficult to manufacture, which include two electrical boundary parts, the first anode and the second anode. Firstly, we separated the electrical boundary parts with the auxiliary fixing parts, and the auxiliary fixing parts were separately sealed as the frame structure. Secondly, the two anode parts are fixed on the mold, and then connected by pulsed laser welding with less welding deformation. Finally, the frame component meeting the design requirements was manufactured. The concentricity, parallelism and height tolerance are all better than 0.02mm.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126317002","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 Terahertz Power Divider Based on Branch Couplers for Complex Power Allocation Applications 一种用于复杂功率分配应用的基于支路耦合器的太赫兹功率分配器
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/CSRSWTC50769.2020.9372511
Zhong-bo Zhu, Wei-dong Hu, Sheng Li, Xiao-jun Li, Jiang-jie Zeng
{"title":"A Terahertz Power Divider Based on Branch Couplers for Complex Power Allocation Applications","authors":"Zhong-bo Zhu, Wei-dong Hu, Sheng Li, Xiao-jun Li, Jiang-jie Zeng","doi":"10.1109/CSRSWTC50769.2020.9372511","DOIUrl":"https://doi.org/10.1109/CSRSWTC50769.2020.9372511","url":null,"abstract":"An improved terahertz power divider based on branch couplers is presented in this paper. It performs well in the case of equal power distribution and can realize the distribution of unequal power by adjusting some key parameters. The simulated results from the software Ansoft HFSS show that it can achieve equal power distribution among 208 GHz to 223 GHz and 1:2 power distribution from 211 GHz to 220 GHz with isolation more than 23 dB. The phase difference between the two output ports is 90 degrees. A horn-shaped structure is placed in the isolation port of the coupler to match with the air, thereby avoiding matched loads.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"9 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126081751","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
Design of Ultra-wideband Conformal Capsule Antenna for Wireless Capsule Endoscopy System 为无线胶囊内窥镜系统设计超宽带共形胶囊天线
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/CSRSWTC50769.2020.9372442
Yang Feng, Shaopeng Pan, Jiawei Li, Pan Chen, Lin Qi, Gaosheng Li
{"title":"Design of Ultra-wideband Conformal Capsule Antenna for Wireless Capsule Endoscopy System","authors":"Yang Feng, Shaopeng Pan, Jiawei Li, Pan Chen, Lin Qi, Gaosheng Li","doi":"10.1109/CSRSWTC50769.2020.9372442","DOIUrl":"https://doi.org/10.1109/CSRSWTC50769.2020.9372442","url":null,"abstract":"The antenna is an important component to realize the wireless communication between the wireless capsule endoscope system inside the human body and the outside world. This paper designs an ultra-wideband conformal capsule antenna with the volume of 18mm3, which uses in wireless capsule endoscopy systems. The antenna is a coplanar waveguide-fed compact planar slotted microstrip antenna, which uses flexible materials to achieve conformal antennas, and is used in the industrial, scientific, and medical frequency bands of 2.45-2.48 GHz (ISM). Under the premise of satisfying radiation safety, while ensuring the performance of the antenna, the ultrawideband operation of the antenna is realized with a bandwidth of 108.9%, and the gain of the antenna at 2.45GHz is −25.4dBi. The research results provide an important reference for the development and application of conformal capsule antennas.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131116684","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
Underground Cavity Imaging Based on PSTD Reverse Time Migration Algorithm 基于PSTD逆时偏移算法的地下空腔成像
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/CSRSWTC50769.2020.9372575
Feng Tian, Lei Mao, Yukun Yang
{"title":"Underground Cavity Imaging Based on PSTD Reverse Time Migration Algorithm","authors":"Feng Tian, Lei Mao, Yukun Yang","doi":"10.1109/CSRSWTC50769.2020.9372575","DOIUrl":"https://doi.org/10.1109/CSRSWTC50769.2020.9372575","url":null,"abstract":"In order to solve the problem of low resolution and low imaging efficiency of GPR imaging of underground holes, the pseudo-spectrum time domain (PSTD) method and normalized cross-correlation imaging conditions are proposed to be used in the reverse time migration (RTM) imaging algorithmin this paper. Aiming at the problem of low resolution of underground cavity imaging, normalized cross-correlation imaging conditions are used to improve the imaging results. The results show that the reverse-time migration profile based on the normalized cross-correlation imaging conditions can more clearly reflect the deep information of the cavity, and the shape information of the cavity can be determined.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131456570","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
The Study of Transmission-Line Transformer of Short-Wave Whip Antennas in The Sea 海上短波鞭状天线传输在线变压器的研究
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/CSRSWTC50769.2020.9372581
J. Liang, Qi Zhai, Shiyu Wang, Yongbin Wang
{"title":"The Study of Transmission-Line Transformer of Short-Wave Whip Antennas in The Sea","authors":"J. Liang, Qi Zhai, Shiyu Wang, Yongbin Wang","doi":"10.1109/CSRSWTC50769.2020.9372581","DOIUrl":"https://doi.org/10.1109/CSRSWTC50769.2020.9372581","url":null,"abstract":"The characteristics of the bandwidth and impedance changes of the antenna are analyzed, and the NiZn ferrite trans-mission-line transformer is applied to the six-meter spiral whip antenna to solve the problem of narrow bandwidth, and the influences of taking the conventional transformation ratio or the unconventional transformation ratio of transmission-line transformer are analyzed, and the influences of the bandwidth and reflection coefficient of the antenna are analyzed, and the suitable transmission-line transformer is determined.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127007639","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
G-Band High-Power Wide-Band Staggered Double Vane Traveling Wave Tube g波段大功率宽带交错双叶行波管
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/CSRSWTC50769.2020.9372729
C. Ruan, Zheng Zhang
{"title":"G-Band High-Power Wide-Band Staggered Double Vane Traveling Wave Tube","authors":"C. Ruan, Zheng Zhang","doi":"10.1109/CSRSWTC50769.2020.9372729","DOIUrl":"https://doi.org/10.1109/CSRSWTC50769.2020.9372729","url":null,"abstract":"Three types of staggered double vane slow wave structure (SDV-SWS) system are put forward including sheet beam, double-mode multi-beam and high-order-mode system, respectively. The sheet beam SDV SWS system, which is a two-stage 42+59 periods structure could get a 275W output power and a corresponding gain of 38dB at 220GHz with a 45GHz bandwidth from 215-260GHz. The double-mode multi-beam wide-band SDV-SWS system using a two-stage 42+48 periods structure, could obtain an over 300W output and a 70GHz ultra-wide band. The TE20high-order-mode SDV-SWS system is a three-stage 31+31+31 periods structure and could get a nearly 53W output power, a 30GHz bandwidth with a nearly 30dB gain, which still has great spaces for improvement. The above research works could promote the development of new ideas and schemes of terahertz high-power and broadband TWT.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132556827","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 Odd Equal Divider Power Synthesis Circuit 奇等分频功率合成电路的设计
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/CSRSWTC50769.2020.9372728
Wang Yong, Sun Biao, Zhang Xingwen, Kang Xiaoke
{"title":"Design of Odd Equal Divider Power Synthesis Circuit","authors":"Wang Yong, Sun Biao, Zhang Xingwen, Kang Xiaoke","doi":"10.1109/CSRSWTC50769.2020.9372728","DOIUrl":"https://doi.org/10.1109/CSRSWTC50769.2020.9372728","url":null,"abstract":"As a core part of the power amplifier, the power synthesis unit is concerned to meet the launch requirement of electromagnetic equipment. This paper present two kinds of design methods covering 6 to 18 GHz. One approach is adopt an unequal powder combination with a 1:2 between 2-way powder divider and impedance to realize odd equal power output by high and low impedance circuit matching; an alternate approach is a sector broadband synthesis circuit structure of multi-section to achieve higher power signal transmission through cavity or micro-strip circuit model. It can be seen from the simulation results that for both synthesis circuits, the interpolation loss is less than 0.5 dB and the out-put wave ratio is less than 1.3, which meets the high power synthesis demand of broadband power amplifier.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131815667","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
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