Zhehao Zhang, Mei Li, Yiman Zhang, Dajiang Li, M. Tang
{"title":"Design of Polarization-Reconfigurable Antenna Based on Hybrid Periodic Metasurface","authors":"Zhehao Zhang, Mei Li, Yiman Zhang, Dajiang Li, M. Tang","doi":"10.1109/COMPEM.2019.8779069","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8779069","url":null,"abstract":"A low-profile circular polarization-reconfigurable antenna based on hybrid periodic metasurface is proposed in this paper. The antenna is composed of a cross-dipole loaded by four PIN diodes and a hybrid periodic metasurface. The grounded cross-dipole can reconfigure two 45° and 135° linear polarizations (LP) by switching the ON and OFF states of the loaded PIN diodes. The hybrid periodic metasurface with different patch-size could transform the two reconfigurable LP into two reconfigurable circular polarizations (CP), i.e., right-hand circular polarization (RHCP) or left-hand circular polarization (LHCP). The simulated results show that the −10dB impedance bandwidth of the CP reconfigurable antenna is 2.45 GHz ~ 3.14 GHz (24.7%), the axial ratio bandwidth is 2.72 GHz ~ 2.92GHz (7.1%), and the realized gain is 8.54 dBi.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126867839","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}
{"title":"A Sparse Imaging-based Single Channel Slow-Moving Target Detection Method","authors":"Xin Wang, Teng Li, Zhengwei Hou","doi":"10.1109/COMPEM.2019.8779073","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8779073","url":null,"abstract":"A weak moving target detection and parameter estimation method is proposed in this paper. A joint static scene and mismatched moving target radar projection operator is formulated and applied to separate the clutter data and MT signal. The weak moving target can be detected after clutter suppression and then moving parameter estimation could be employed based on the retrieved phase of moving target signal. Numerical simulation can verify the validity and robustness of the proposed methodology.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"194 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114555946","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}
{"title":"An Intra Coding Algorithm Of HEVC That Suitable For VLSI Implementation","authors":"ShiKai Zuo, Yijun Cai, Xindong Huang, Hai-feng Lin, Rongrong Guo, Chen Wang","doi":"10.1109/COMPEM.2019.8778892","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8778892","url":null,"abstract":"The video coding algorithm of HEVC is complex and hard to realization in VLSI. In order to reduce the coding algorithm complexity, we propose the intra-prediction algorithm based on the texture features and spatio-temporal correlation of PU. According to the PU feature which in the same position of previous frame, we can quickly decide the coding unit size, reduce the number of the corresponding texture prediction model, and speed up the process of intra-prediction. Algorithm can through the same parameters to estimate the code unit texture intensity and texture direction, thus reducing the additional computation quantity. The simulation results show that, under the conditions of the small increase in the code rate and small decrease of the peak signal-to-noise ratio, the coding time of the intra coding algorithm reduces by 43.23%, compared with HEVC reference software.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"218 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114004082","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}
{"title":"A Low-Profile Wideband Phased Array Antenna Using EBG Structures in P-band","authors":"Xin Li, Mao Chen, Zhan Hao Wu, Q. Cheng","doi":"10.1109/COMPEM.2019.8779112","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8779112","url":null,"abstract":"In this paper, a wideband low-profile phased array antenna based on EBG Structures is presented in P-band. The antenna consists of three monopole antennas standing above a wideband mushroom-type electromagnetic band-gap (EBG) reflector. Compared with the perfect electric conductor reflector, the profile thickness of the presented antenna is greatly reduced by 78% from 0.23λ0 to 0.055λ0, where λ0 refers to the wavelength at center operating frequency. A phase-shift power divider is employed to feed the proposed antenna array, giving rise to the tilted radiation beam at around 30° in H-planes. This antenna is designed to operate with bandwidth from 0.53 GHz to 0.9 GHz (51.7%), with the gain over 5dB over a majority of bandwidth.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125887708","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}
{"title":"In band noise dection in short distance optical communication systems based on the sub-space method","authors":"Junhe Zhou, Panpan Fan","doi":"10.1109/COMPEM.2019.8778860","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8778860","url":null,"abstract":"In this work, a novel estimation method is proposed for in-band noise monitoring in short distance optical communication systems based on the sub-space method. In the polarization multiplexing systems, when only one data tributary is transmitted, one may use the other polarization state for noise detection. Although random rotation occurs during the transmission, sub-space analysis based on the correlation matrix of the received tributaries will recover the noise term perfectly. Numerical simulations demonstrate the effectiveness of the proposed method.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125004651","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}
R. Izhar, Meraj-E-Mustafa, M. S. Wahidi, F. A. Tahir
{"title":"An Anisotropic Dual-Broadband Reflective Polarization Converter Metasurface","authors":"R. Izhar, Meraj-E-Mustafa, M. S. Wahidi, F. A. Tahir","doi":"10.1109/COMPEM.2019.8779072","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8779072","url":null,"abstract":"A dual broadband polarization conversion metasurface is presented in this paper. The metasurface is composed of periodic unit cells, each unit cell consists of a square-shaped resonator having three slits inside it. The surface efficiently transforms an incident linearly polarized electromagnetic (EM) wave into its cross component within the frequency bands of 7.4-10.5 GHz and 12.7-20 GHz. With its dual band operation on a single layer FR4 dielectric substrate, the subject metasurface is a good contender in the field of cross-polarization conversion metasurfaces.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129380935","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}
Xiangxiang Li, Kerong Xu, Yeqiang Li, Suzhen Ye, Jing Tao, Changsheng Wang
{"title":"SIW-Fed Vivaldi Array for mm-Wave Applications","authors":"Xiangxiang Li, Kerong Xu, Yeqiang Li, Suzhen Ye, Jing Tao, Changsheng Wang","doi":"10.1109/COMPEM.2019.8779095","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8779095","url":null,"abstract":"This paper presents a 1×8 SIW fed Vivaldi antenna array with the size of 56mm×46mm, which provides high gain of more than 15 dBi at the mm-wave frequencies from 32.5 GHz to 39.5 GHz. A single SIW-fed Vivaldi element is first proposed, which has a bandwidth of 26.5–40 GHz with an average gain of ~6.5 dBi. This antenna element is then utilized to construct a 1 × 8 linear array matched to a 50Ω impedance by a T-junction SIW power divider. The characteristics of proposed antenna array are thoroughly investigated. The wide bandwidth and high gain along with the excellent performance of the proposed 1 × 8 antenna array makes it an excellent candidate for future mm-wave applications.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132319801","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}
{"title":"Wideband and High Gain Horn Antenna with Lens and Wedge Ridge","authors":"X. Qiao, Hongzhi Zhao, Zhaoneng Jiang","doi":"10.1109/COMPEM.2019.8779171","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8779171","url":null,"abstract":"In this paper, an ultra-wideband (UWB) and high gain horn antenna is proposed for microwave communication system, which is composed of E-plane horn antenna, a dielectric hemispheric lens and double wedge metal ridges. The proposed antenna is fed by coaxial feed, which is simulated by high frequency structure simulator (HFSS) software. The simulated results show that the double wedge metal ridges increase the bandwidth of the horn antenna, and the frequency range up to 2~12GHz. When only the double wedge metal ridges are applied to improve the performance of the horn antenna, the gain of the horn antenna will be reduced. In order to compensate for the effect of the double wedge metal ridges on the gain of the horn antenna, the dielectric hemispheric lens is utilized. According to the simulated results, the gain of horn antenna can be increased by the dielectric hemispheric lens in the working frequency band. By the proposed techniques, the proposed antenna has the characteristics of ultra-wideband, high gain and strong directional radiation. It can be applied in a variety of communication systems.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115960332","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}
{"title":"An Ultra-Wideband Millimeter-wave Antenna using a Novel Pentagon Filling Technique","authors":"H. Ullah, F. A. Tahir","doi":"10.1109/COMPEM.2019.8779175","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8779175","url":null,"abstract":"A 5G ultra-wideband monopole antenna working in millimeter-wave spectrum is being proposed here. Operating band of the antenna is 24.42-40.29 GHz exhibiting an enormous bandwidth of 15.87 GHz. The bandwidth coverage has been achieved by structuring the antenna through a unique method of pentagon filling. Low loss 0.254 mm thick Rogers substrate was used to attain radiation efficiency of more than 95% and a peak gain of 4.86 dBi. The antenna is compact in size with dimensions of 8×7 mm2. The proposed antenna is deemed suitable for future 5G and millimeter-wave communications due to its attractive characteristics.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"217 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115963146","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}
{"title":"Using Machine Learning to Represent Electromagnetic Characteristics of Arbitrarily-shaped Targets","authors":"Xiao-Min Pan, Bo-Yue Song, Si-Lu Huang, X. Sheng","doi":"10.1109/COMPEM.2019.8778911","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8778911","url":null,"abstract":"A general data sparse representation of electromagnetic characteristics of an arbitrarily-shaped target is developed by using the machine learning model. The data sparse representation of the electromagnetic response is firstly figured out by the skeletonization technique. The machine learning approach is then employed to construct a general and flexible model which can capture the electromagnetic characteristics of the target of interest. Numerical experiments are conducted to validate the performance of the model.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121823964","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}