Pub Date : 2018-12-01DOI: 10.1109/ISAPE.2018.8634285
Pei Wang, Hongwei Gao
This paper describes a terahertz filter based on frequency selective surface with periodic Jerusalem cross slot cell. The filter is a two-stage band-pass filter fabricated with double-side Au film and the central frequency is 220GHz. The electromagnetic modeling, simulation and analysis of the bandpass filter are presented. The influence of the dimension of the Jerusalem cross cell on the transmission characteristics of the band-pass filter is discussed. By optimizing the dimension of the Jerusalem cross cell, the band-pass filter shows that the insertion loss is −1.9dB∼ −1.6dB with a 3dB bandwidth of 8GHz, and the return loss is less than −8.9dB.
{"title":"A terahertz frequency selective surface band-pass filter","authors":"Pei Wang, Hongwei Gao","doi":"10.1109/ISAPE.2018.8634285","DOIUrl":"https://doi.org/10.1109/ISAPE.2018.8634285","url":null,"abstract":"This paper describes a terahertz filter based on frequency selective surface with periodic Jerusalem cross slot cell. The filter is a two-stage band-pass filter fabricated with double-side Au film and the central frequency is 220GHz. The electromagnetic modeling, simulation and analysis of the bandpass filter are presented. The influence of the dimension of the Jerusalem cross cell on the transmission characteristics of the band-pass filter is discussed. By optimizing the dimension of the Jerusalem cross cell, the band-pass filter shows that the insertion loss is −1.9dB∼ −1.6dB with a 3dB bandwidth of 8GHz, and the return loss is less than −8.9dB.","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115513777","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}
Pub Date : 2018-12-01DOI: 10.1109/ISAPE.2018.8634153
Xuemin Zhang, V. Frolov, Shufan Zhao, Chen Zhou, Yalu Wang
Since June 2018, SURA heating facility in Russia has carried out the experiments in emitting high frequency (HF) radio waves with O-mode and disturbing the ionosphere, together with the in-orbit satellite of China Seismo-Electromagnetic Satellite (CSES). By collecting the observing data onboard CSES including electric field, in-situ plasma parameters and energetic particle flux, the results show that in local daytime no pumping waves were detected by the electric field detector (EFD) on CSES even the emitted power reaching 90 MW, and no any obvious plasma disturbances were observed from CSES. While in local nighttime, the pumping waves were clearly distinguished in HF-band electric field at the emitted frequency with the emitted power only 30MW, in which the power spectrum density of electric field was larger than the normal background to an order of magnitude, with the propagating radius exceeding 200 km. This joint experiment of SURA-CSES illustrates that, CSES can cross SURA facility within a quite near distance with present designed orbit, which can insure the effective heating time from SURA and make CSES most possibly to observe the perturbations at the topside ionosphere excited by SURA.
{"title":"The Experimental Results from SURA HF Facility and CSES Satellite","authors":"Xuemin Zhang, V. Frolov, Shufan Zhao, Chen Zhou, Yalu Wang","doi":"10.1109/ISAPE.2018.8634153","DOIUrl":"https://doi.org/10.1109/ISAPE.2018.8634153","url":null,"abstract":"Since June 2018, SURA heating facility in Russia has carried out the experiments in emitting high frequency (HF) radio waves with O-mode and disturbing the ionosphere, together with the in-orbit satellite of China Seismo-Electromagnetic Satellite (CSES). By collecting the observing data onboard CSES including electric field, in-situ plasma parameters and energetic particle flux, the results show that in local daytime no pumping waves were detected by the electric field detector (EFD) on CSES even the emitted power reaching 90 MW, and no any obvious plasma disturbances were observed from CSES. While in local nighttime, the pumping waves were clearly distinguished in HF-band electric field at the emitted frequency with the emitted power only 30MW, in which the power spectrum density of electric field was larger than the normal background to an order of magnitude, with the propagating radius exceeding 200 km. This joint experiment of SURA-CSES illustrates that, CSES can cross SURA facility within a quite near distance with present designed orbit, which can insure the effective heating time from SURA and make CSES most possibly to observe the perturbations at the topside ionosphere excited by SURA.","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128443275","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}
Pub Date : 2018-12-01DOI: 10.1109/isape.2018.8634301
{"title":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Proceedings","authors":"","doi":"10.1109/isape.2018.8634301","DOIUrl":"https://doi.org/10.1109/isape.2018.8634301","url":null,"abstract":"","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128482248","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}
We present in this paper an efficient parallelization approach of the finite element domain decomposition method (FEM-DDM) for large scale 3D scattering problems. In this parallel FEM-DDM, the domain decomposition is done in a hierarchical way to minimize the inter-processor communication. In the hierarchical domain decomposition scheme, the whole FEM solution domain is first decomposed into large size subdomains with a total number equals to MPI processes. Then, each large subdomain is distributed to a MPI process and further decomposed into smaller ones to achieve good computation efficiency. Numerical examples are presented to demonstrate the accuracy, scalability, and capability of the proposed parallel FEM-DDM algorithm.
{"title":"An Efficient Parallelization Approach of FEM-DDM for Large-Scale 3D Scattering Problems","authors":"Rui-Qing Liu, Ming-lin Yang, Hong-Wei Gao, Xinqing Sheng","doi":"10.1109/ISAPE.2018.8634216","DOIUrl":"https://doi.org/10.1109/ISAPE.2018.8634216","url":null,"abstract":"We present in this paper an efficient parallelization approach of the finite element domain decomposition method (FEM-DDM) for large scale 3D scattering problems. In this parallel FEM-DDM, the domain decomposition is done in a hierarchical way to minimize the inter-processor communication. In the hierarchical domain decomposition scheme, the whole FEM solution domain is first decomposed into large size subdomains with a total number equals to MPI processes. Then, each large subdomain is distributed to a MPI process and further decomposed into smaller ones to achieve good computation efficiency. Numerical examples are presented to demonstrate the accuracy, scalability, and capability of the proposed parallel FEM-DDM algorithm.","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128277924","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}
Pub Date : 2018-12-01DOI: 10.1109/isape.2018.8634232
{"title":"ISAPE2018 Program at a Glance","authors":"","doi":"10.1109/isape.2018.8634232","DOIUrl":"https://doi.org/10.1109/isape.2018.8634232","url":null,"abstract":"","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128345135","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}
Pub Date : 2018-12-01DOI: 10.1109/ISAPE.2018.8634209
F. Zheng, W. Lou, Yanhui Han
In recent years, high-power ultra wide band electromagnetic pulse source technology has developed rapidly. In order to better exert its value, there is an urgent need for a high-power ultra wide band antenna to effectively radiate electromagnetic energy. In this paper, the CST microwave studio is used to simulate the electromagnetic Vibrator Combined antenna to determine the size and shape of a single antenna. Then simulate the $3times 3$ array antenna. By changing the antenna spacing, it is found that: 1. The beam width in the horizontal plane is only related to the spacing of the antennas in the horizontal direction; 2. The beam width in the vertical plane is only related to the spacing of the antennas in the vertical direction; 3. The gain of the antenna fluctuates with the change of the antenna spacing, and remains basically stable at $lambda/4simlambda/2$.
{"title":"Simulation Design of Array Electromagnetic Vibrator Combined Ultra Wide Band Antenna","authors":"F. Zheng, W. Lou, Yanhui Han","doi":"10.1109/ISAPE.2018.8634209","DOIUrl":"https://doi.org/10.1109/ISAPE.2018.8634209","url":null,"abstract":"In recent years, high-power ultra wide band electromagnetic pulse source technology has developed rapidly. In order to better exert its value, there is an urgent need for a high-power ultra wide band antenna to effectively radiate electromagnetic energy. In this paper, the CST microwave studio is used to simulate the electromagnetic Vibrator Combined antenna to determine the size and shape of a single antenna. Then simulate the $3times 3$ array antenna. By changing the antenna spacing, it is found that: 1. The beam width in the horizontal plane is only related to the spacing of the antennas in the horizontal direction; 2. The beam width in the vertical plane is only related to the spacing of the antennas in the vertical direction; 3. The gain of the antenna fluctuates with the change of the antenna spacing, and remains basically stable at $lambda/4simlambda/2$.","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128958788","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}
Pub Date : 2018-12-01DOI: 10.1109/ISAPE.2018.8634390
Shao-he Li, Jiu-sheng Li
Terahertz wave switch based on Otto coupling configuration and periodic metal V-groove structure is proposed. The reflection terahertz wave intensity from the prism-air-vanadium dioxide-metal interface is controlled by via changing external temperature. By adjusting the external temperature, the refractive index of vanadium dioxide can be changed, so that the terahertz wave reflectivity according to geometrical optics reflection is dynamically controlled. The numerical results further show that the present structure can flexibly manipulate terahertz wave transmission. The extinction ratio is about 20.18dB in our design, which has enormous potential for studying terahertz wave manipulation.
{"title":"Terahertz switch based on Otto configuration using spoof surface plasmon polariton","authors":"Shao-he Li, Jiu-sheng Li","doi":"10.1109/ISAPE.2018.8634390","DOIUrl":"https://doi.org/10.1109/ISAPE.2018.8634390","url":null,"abstract":"Terahertz wave switch based on Otto coupling configuration and periodic metal V-groove structure is proposed. The reflection terahertz wave intensity from the prism-air-vanadium dioxide-metal interface is controlled by via changing external temperature. By adjusting the external temperature, the refractive index of vanadium dioxide can be changed, so that the terahertz wave reflectivity according to geometrical optics reflection is dynamically controlled. The numerical results further show that the present structure can flexibly manipulate terahertz wave transmission. The extinction ratio is about 20.18dB in our design, which has enormous potential for studying terahertz wave manipulation.","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126873570","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}
Pub Date : 2018-12-01DOI: 10.1109/ISAPE.2018.8634294
W. Guo, Jining Li, Xue Li, Yuesong Wang
Different from the conventional microwave radar, HF radar working environment is terrible. There are many factors effect on the detection performance, and most of them associated with the radar operating frequency, so it's very important to select a proper operating frequency for HF radar. Based on the radar equation, detailed analysis of factors which associated with the performance of radar is showed, including the radar parameters, environmental parameters and target characteristics.
{"title":"A Study on Evaluation Detection Performance of HF Surface Wave Radar","authors":"W. Guo, Jining Li, Xue Li, Yuesong Wang","doi":"10.1109/ISAPE.2018.8634294","DOIUrl":"https://doi.org/10.1109/ISAPE.2018.8634294","url":null,"abstract":"Different from the conventional microwave radar, HF radar working environment is terrible. There are many factors effect on the detection performance, and most of them associated with the radar operating frequency, so it's very important to select a proper operating frequency for HF radar. Based on the radar equation, detailed analysis of factors which associated with the performance of radar is showed, including the radar parameters, environmental parameters and target characteristics.","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129206800","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}
Pub Date : 2018-12-01DOI: 10.1109/ISAPE.2018.8634149
Xiao-Lai Li, Qingmian Wan, Guomin Yang, Yaqiu Jin
Coaxial-to-microstrip transition structure is a common discontinuity structure in the assembly processing of microwave electronic products. A simple and accurate equivalent circuit extraction method of coaxial-to-microstrip discontinuous structure is proposed in this paper. Response surface methodology (RSM) is applied to the extraction of the equivalent circuit of the coaxial-to-microstrip discontinuous structure for the first time. The equivalent circuit is obtained at a wide frequency band 5–40 GHz, and the explicit formulas of the model element for the equivalent circuit are given. The equivalent circuit can be embedded in the existing circuit analysis simulation software, which can greatly decrease the simulation time and have great potential for the real applications.
{"title":"Equivalent Circuit Extraction for Coaxial-to-Microstrip Transition Structure Using Response Surface Method","authors":"Xiao-Lai Li, Qingmian Wan, Guomin Yang, Yaqiu Jin","doi":"10.1109/ISAPE.2018.8634149","DOIUrl":"https://doi.org/10.1109/ISAPE.2018.8634149","url":null,"abstract":"Coaxial-to-microstrip transition structure is a common discontinuity structure in the assembly processing of microwave electronic products. A simple and accurate equivalent circuit extraction method of coaxial-to-microstrip discontinuous structure is proposed in this paper. Response surface methodology (RSM) is applied to the extraction of the equivalent circuit of the coaxial-to-microstrip discontinuous structure for the first time. The equivalent circuit is obtained at a wide frequency band 5–40 GHz, and the explicit formulas of the model element for the equivalent circuit are given. The equivalent circuit can be embedded in the existing circuit analysis simulation software, which can greatly decrease the simulation time and have great potential for the real applications.","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123221955","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}
Pub Date : 2018-12-01DOI: 10.1109/ISAPE.2018.8634167
Chengwen Wang, Zetai Yu, T. Xiang, Helin Yang
We proposed a patch antenna with a circular ring structure loaded at the source of antenna radiation to increase the gain. Expanding the ground to suppress the backward wave of the antenna. Compared with conventional antennas, the gain of the designed antenna is 11.6 dBi, which is increased by 5 dBi, and improved with 75.7%. The metamaterial antenna shows good impedance match in a wideband form 8.47 GHz to 9.37 GHz. This paper provides a method to improve the gain of the micro-strip patch antenna and the method can effectively improve the gain of the antenna without increasing the profile. Experiment ware carried out to verify the simulation results.
{"title":"The design of a high gain, low profile and planar antenna","authors":"Chengwen Wang, Zetai Yu, T. Xiang, Helin Yang","doi":"10.1109/ISAPE.2018.8634167","DOIUrl":"https://doi.org/10.1109/ISAPE.2018.8634167","url":null,"abstract":"We proposed a patch antenna with a circular ring structure loaded at the source of antenna radiation to increase the gain. Expanding the ground to suppress the backward wave of the antenna. Compared with conventional antennas, the gain of the designed antenna is 11.6 dBi, which is increased by 5 dBi, and improved with 75.7%. The metamaterial antenna shows good impedance match in a wideband form 8.47 GHz to 9.37 GHz. This paper provides a method to improve the gain of the micro-strip patch antenna and the method can effectively improve the gain of the antenna without increasing the profile. Experiment ware carried out to verify the simulation results.","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123632544","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：