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2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)最新文献

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Spoof Surface Plasmon Polaritons with Defected Ground Structure for Bandstop Filter 带阻滤波器中具有缺陷接地结构的表面等离子激元极化欺骗
2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2022-12-17 DOI: 10.1109/CSRSWTC56224.2022.10098393
Fanghui Dong, Liming Si, Qingle Zhang, Houjun Sun
{"title":"Spoof Surface Plasmon Polaritons with Defected Ground Structure for Bandstop Filter","authors":"Fanghui Dong, Liming Si, Qingle Zhang, Houjun Sun","doi":"10.1109/CSRSWTC56224.2022.10098393","DOIUrl":"https://doi.org/10.1109/CSRSWTC56224.2022.10098393","url":null,"abstract":"In this paper, a bandstop filter based on spoof surface plasmon polaritons with defected ground structure (DGS) is proposed, which can be realized waveguide based on stripline circuits. By adjusting the geometric structure of the U-slot of the DGS, the operating stopband frequency of the filter can be flexibly adjusted. The effect of the bandstop filter is verified through the S parameter and electric field distribution diagram. The stopband width can reach about 2 GHz with good suppression characteristics. The influence of the key parameters of the defected ground structure on the bandstop performance is analyzed, which has guiding significance for the subsequent improvement and optimization.","PeriodicalId":198168,"journal":{"name":"2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133134351","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
Polarization-independent, Single-zero Filtering Transmissive Metasurface with Polarization Conversion Function 具有偏振转换功能的偏振无关、单零滤波透射超表面
2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2022-12-17 DOI: 10.1109/CSRSWTC56224.2022.10098384
Junyi Wang, Hongyu Shi, Jianjia Yi, Juan Chen, A. Zhang, Haiwen Liu
{"title":"Polarization-independent, Single-zero Filtering Transmissive Metasurface with Polarization Conversion Function","authors":"Junyi Wang, Hongyu Shi, Jianjia Yi, Juan Chen, A. Zhang, Haiwen Liu","doi":"10.1109/CSRSWTC56224.2022.10098384","DOIUrl":"https://doi.org/10.1109/CSRSWTC56224.2022.10098384","url":null,"abstract":"In this paper, a transmissive single-zero filter metasurface unit cell with cross polarization conversion function is designed, and furthermore, the four unit cells rotated by $90^{circ}$ clockwise are designed as C4 super-structure to achieve polarization independence. The passband of this unit cell is at 2.8 GHz, and the zero point is at 2.6 GHz, the in-band is flat and the out-of-band rejection is very good.","PeriodicalId":198168,"journal":{"name":"2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116244208","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 Novel Design of Dual-Band Horn Antenna with Large Frequency Ratio 一种新型大频率比双频喇叭天线设计
2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2022-12-17 DOI: 10.1109/CSRSWTC56224.2022.10098378
Y. Liu, Yuan Yao, Xiao-he Cheng, Junsheng Yu, Xiao-dong Chen
{"title":"A Novel Design of Dual-Band Horn Antenna with Large Frequency Ratio","authors":"Y. Liu, Yuan Yao, Xiao-he Cheng, Junsheng Yu, Xiao-dong Chen","doi":"10.1109/CSRSWTC56224.2022.10098378","DOIUrl":"https://doi.org/10.1109/CSRSWTC56224.2022.10098378","url":null,"abstract":"In this paper, a novel dual-band horn antenna operating at E band and X band is proposed. The radiation section is a horn antenna array consists of an H-plane EBG horn antenna based on band gap waveguide proposed recently and two pyramid horn antennas. The high band is radiated through the middle H-plane EBG horn antenna while the low band is radiated through the whole array. The simulation results show that within the operating frequency of interest, reflection coefficients are less than −10 dB and the gains are higher than 16dBi. The dual-band horn exhibits good beam-width equalization performance with an error within $pm 10^{circ}$ in both E band and X band.","PeriodicalId":198168,"journal":{"name":"2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116489925","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
Analysis of electromagnetic wave radiation of hypersonic vehicle covered by plasma sheath 等离子体护套覆盖高超声速飞行器电磁波辐射分析
2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2022-12-17 DOI: 10.1109/CSRSWTC56224.2022.10098326
Yue Zhang, Yong-Li Jin, Xiao-Wei Huang, Jin-Gang Liu, X. Sheng
{"title":"Analysis of electromagnetic wave radiation of hypersonic vehicle covered by plasma sheath","authors":"Yue Zhang, Yong-Li Jin, Xiao-Wei Huang, Jin-Gang Liu, X. Sheng","doi":"10.1109/CSRSWTC56224.2022.10098326","DOIUrl":"https://doi.org/10.1109/CSRSWTC56224.2022.10098326","url":null,"abstract":"This hypersonic vehicle with plasma sheath can be seen as one kind of media with nonuniform structure, negative permittivity and electrically large size when interacting with high frequency electromagnetic waves. Such features bring challenge to the existing electromagnetic numerical methods. In this paper, the hybrid finite element-boundary integral-multilevel fast multipole algorithm (FE-BI-MLFMA) is used to simulate the antenna radiation of hypersonic vehicle coated by plasma sheath. The plasma sheath is inhomogeneous and mapped from the fluid mesh to electromagnetic mesh. The radiation patterns are calculated in different heights and speeds. The simulation data indicates that the effect of plasma sheath on the radiation performance can be alleviated by increasing the working frequency or deploying the antenna to the tail of the vehicle where the electron density is much lower. In addition, some interesting phenomena have been observed such as the enhancement, the reflection and deflection of the main lobe of the radiation pattern.","PeriodicalId":198168,"journal":{"name":"2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114808865","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
Four-port Printed MIMO Monopole Antennas with an EBG reflector at WRC 5G C-band for Access point Applications 四端口印刷MIMO单极天线与EBG反射器在WRC 5G c波段的接入点应用
2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2022-12-17 DOI: 10.1109/CSRSWTC56224.2022.10098445
Shiang-An Shie, Bing-Hong Cai, Wen‐Shan Chen
{"title":"Four-port Printed MIMO Monopole Antennas with an EBG reflector at WRC 5G C-band for Access point Applications","authors":"Shiang-An Shie, Bing-Hong Cai, Wen‐Shan Chen","doi":"10.1109/CSRSWTC56224.2022.10098445","DOIUrl":"https://doi.org/10.1109/CSRSWTC56224.2022.10098445","url":null,"abstract":"A design of four-port MIMO monopole antennas with an EBG reflector operating at WRC 5G C-band (3.4–3.6GHz) for access point applications is proposed. There are four monopole antennas, four metal strips as ground, and an EBG reflector. The four monopole antennas are fed by SMA. The four antennas and metals as ground are printed on an FR4 substrate of permittivity of 4.4, thickness of 1.6mm and loss tangent of 0.0245. An EBG (Electromagnetic band-gap) is composed of 3x3 elements. The element of the EBG is a square patch with four truncated angles. The EBG is also printed on an FR4 substrate. The distance of the antennas and EBG is 3 mm. From the results of the design, the design could be applied to the WRC 5G C-band for access point applications. The simulated gains of the design is from 3.3–3.6dBi. The design with good performances and small size is suitable for WRC 5G C-band applications.","PeriodicalId":198168,"journal":{"name":"2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128643226","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
Indoor Human Activity and Vital Sign Monitoring Based on Millimeter Wave Radar 基于毫米波雷达的室内人体活动与生命体征监测
2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2022-12-17 DOI: 10.1109/csrswtc56224.2022.10098357
Ruyu Ma, Xiu Yin Zhang
{"title":"Indoor Human Activity and Vital Sign Monitoring Based on Millimeter Wave Radar","authors":"Ruyu Ma, Xiu Yin Zhang","doi":"10.1109/csrswtc56224.2022.10098357","DOIUrl":"https://doi.org/10.1109/csrswtc56224.2022.10098357","url":null,"abstract":"Millimeter wave radars have been widely used in many military and civil applications. For example, they are used in missile fire-control systems, autonomous driving of cars and robots, traffic control, altimeter of unmanned aerial vehicles, airport security, and smart home among others. In these applications, it is generally appreciated that millimeter wave radars have the benefits of high-precision, high robustness again light and element changing, protection of privacy, light weight and low cost. As a result, millimeter wave radars have drawn more and more attentions in indoor human monitoring, such as positioning, activity monitoring, hand-gesture recognition, and fall detection mostly in the daytime, and breath and heart-beat monitoring mostly at night.","PeriodicalId":198168,"journal":{"name":"2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133867076","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 High Sensitivity Microwave Sensor for Dielectric Characterization of Substrates 一种用于衬底介电特性的高灵敏度微波传感器
2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2022-12-17 DOI: 10.1109/CSRSWTC56224.2022.10098321
Xingyun Zhang, Yang Bai, Qunting Ren, Shun Liu, Fang Liu, Ming Lyu
{"title":"A High Sensitivity Microwave Sensor for Dielectric Characterization of Substrates","authors":"Xingyun Zhang, Yang Bai, Qunting Ren, Shun Liu, Fang Liu, Ming Lyu","doi":"10.1109/CSRSWTC56224.2022.10098321","DOIUrl":"https://doi.org/10.1109/CSRSWTC56224.2022.10098321","url":null,"abstract":"A microwave sensor based on complementary multiple split-ring resonator (CMSRR) for substrates dielectric characterization is proposed in this paper. The microwave sensor is designed on Rogers RT/duroid 5880 substrate with a relative permittivity of 2.2. The proposed sensor is simulated and optimized to resonate at 8.51 GHz using High Frequency Structure Simulator (HFSS). At resonance, there is a very strong electric field across the CMSRR. By putting the substrates under test with relative permittivity ranges from 2.1-3 and constant dimensions 3.9 mm × 8.2 mm × 3 mm on the CMSRRs, the resonance frequencies of the device change obviously. The achieved sensitivity is up to 4.3%, making it a good candidate for dielectric characterization of material under test.","PeriodicalId":198168,"journal":{"name":"2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"392 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132812935","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 and study of a near omnidirectional transparent electromagnetic absorber 近全向透明电磁吸收器的设计与研究
2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2022-12-17 DOI: 10.1109/CSRSWTC56224.2022.10098434
Xuerong Hu, Zhitao Yang, Yi Wang, H.-W. Deng
{"title":"Design and study of a near omnidirectional transparent electromagnetic absorber","authors":"Xuerong Hu, Zhitao Yang, Yi Wang, H.-W. Deng","doi":"10.1109/CSRSWTC56224.2022.10098434","DOIUrl":"https://doi.org/10.1109/CSRSWTC56224.2022.10098434","url":null,"abstract":"In this paper, the characteristic mode (CM) theory is applied to explain the causes of omnidirectional radiation, of which is then introduced to design an optically transparent electromagnetic absorber. Based on the omni-directional radiation theory, a “mushroom-type” structure with omnidirectional radiation in the LS- and S- frequency band is designed, and then all metallic materials on the structure are replaced with transparent resistive materials to investigate the effect of materials with different sizes of square resistance on the omnidirectional absorption performance.","PeriodicalId":198168,"journal":{"name":"2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134297640","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
Transfer Learning Method for Cuffless Blood Pressure Estimation Based on Measured PPG Data 基于PPG测量数据的无袖带血压估计迁移学习方法
2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2022-12-17 DOI: 10.1109/CSRSWTC56224.2022.10098410
Hanlin Mou, Junsheng Yu
{"title":"Transfer Learning Method for Cuffless Blood Pressure Estimation Based on Measured PPG Data","authors":"Hanlin Mou, Junsheng Yu","doi":"10.1109/CSRSWTC56224.2022.10098410","DOIUrl":"https://doi.org/10.1109/CSRSWTC56224.2022.10098410","url":null,"abstract":"In this paper, we focus on cuffless blood pressure (BP) estimation based on measured PPG data. First, we design a Convolutional Neural Networks and Gated Recurrent Unit (CNN-GRU) network model to estimate BP. Furthermore, a transfer learning scheme is proposed to improve the training efficiency of CNN-GRU model. In detailed, a base model trained on one source user's data is transferred to other target users by freezing parameters of partial layers. The results based on measured data show that the proposed method can save training times while achieving superior performance.","PeriodicalId":198168,"journal":{"name":"2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124786114","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
Welding Defect Detection in Steel Reinforcing Bars using Deep Learning 基于深度学习的钢筋焊接缺陷检测
2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2022-12-17 DOI: 10.1109/CSRSWTC56224.2022.10098473
Yixuan Wang, Guodong Chen, Zhihong Wu, Mingwei Huang, Jinxun Lin
{"title":"Welding Defect Detection in Steel Reinforcing Bars using Deep Learning","authors":"Yixuan Wang, Guodong Chen, Zhihong Wu, Mingwei Huang, Jinxun Lin","doi":"10.1109/CSRSWTC56224.2022.10098473","DOIUrl":"https://doi.org/10.1109/CSRSWTC56224.2022.10098473","url":null,"abstract":"Weld connection is an important process in on-site reinforcing bar engineering, which should finally be visually inspected by construction workers to ensure that the quality of the joint meets the code requirements. Manual inspection is mostly time-consuming and laborious. The development of deep learning has led to great advances in the field of industrial defect detection. However, there are some challenges to considering both accuracy and efficiency in the recognition of rebar welding defects. Hence, in this study, a defect detector has been proposed, based on YOLOv3. In the proposed network, we integrate the dilated convolution with different dilation rates to increase the receptive field of the backbone. Moreover, CIoU loss is utilized, which accelerates the bounding box regression and improves the accuracy of defect detection. Furthermore, Focal loss is indeed applied to solve the class imbalance problem. The experiments are run on a real-world rebar welding dataset that mAP improves by 6.83%, compared with YOLOv3. Meanwhile, the proposed detector also meets the real-time requirements of the rebar welding defect detection task.","PeriodicalId":198168,"journal":{"name":"2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125585751","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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