Pub Date : 2013-07-21DOI: 10.1109/CSQRWC.2013.6657390
H. Jin, K. Chin, W. Che, Q. Xue
A two-element patch antenna sub-array with low cross-polarization is proposed. Unlike conventional antenna array, the proposed array employs a novel differential via-wall feeding structure, by which it can have low cross-polarization in H-plane and symmetric radiation pattern in E-plane. The via-wall feeding structure can also enhance the bandwidth. Low-temperature co-fired ceramic (LTCC) fabrication process is adopted to realize this antenna at 13 GHz. The proposed differential antenna integrates easily with ready-made differential devices. The proposed design achieved the 10-dB impedance bandwidth of 10% and peak gain of 6.8 dBi. The simulated results also show that an excellent H-plane cross-polarization of less than -27 dB is obtained.
{"title":"LTCC differential-fed patch antenna sub-array with low cross-polarization","authors":"H. Jin, K. Chin, W. Che, Q. Xue","doi":"10.1109/CSQRWC.2013.6657390","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657390","url":null,"abstract":"A two-element patch antenna sub-array with low cross-polarization is proposed. Unlike conventional antenna array, the proposed array employs a novel differential via-wall feeding structure, by which it can have low cross-polarization in H-plane and symmetric radiation pattern in E-plane. The via-wall feeding structure can also enhance the bandwidth. Low-temperature co-fired ceramic (LTCC) fabrication process is adopted to realize this antenna at 13 GHz. The proposed differential antenna integrates easily with ready-made differential devices. The proposed design achieved the 10-dB impedance bandwidth of 10% and peak gain of 6.8 dBi. The simulated results also show that an excellent H-plane cross-polarization of less than -27 dB is obtained.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"223 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133767162","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 : 2013-07-21DOI: 10.1109/CSQRWC.2013.6657347
Ming Wang, Xiaoqiang Xie, Xiang Zhao, Lei Zhou
An improved W-band four-way power divider/combiner using turnstile coupling waveguide has been proposed in this paper. This divider/ combiner possess properties of low loss, high power capacity, compact structure, good return loss, and good heat dissipation. The 3D EM simulation results show that, from 85GHz to 100GHz, the return loss is better than 22dB and the transmission coefficient is about -6dB, meanwhile the output return loss is great than 15dB ranging from 88-100GHz. Applied with MMIC power amplifiers, this power divider/combiner can be used in solid-state power-combining amplifying module, and high power radar systems in W-band.
{"title":"A compact four-way power combiner/divider in W-Band","authors":"Ming Wang, Xiaoqiang Xie, Xiang Zhao, Lei Zhou","doi":"10.1109/CSQRWC.2013.6657347","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657347","url":null,"abstract":"An improved W-band four-way power divider/combiner using turnstile coupling waveguide has been proposed in this paper. This divider/ combiner possess properties of low loss, high power capacity, compact structure, good return loss, and good heat dissipation. The 3D EM simulation results show that, from 85GHz to 100GHz, the return loss is better than 22dB and the transmission coefficient is about -6dB, meanwhile the output return loss is great than 15dB ranging from 88-100GHz. Applied with MMIC power amplifiers, this power divider/combiner can be used in solid-state power-combining amplifying module, and high power radar systems in W-band.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124538563","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 : 2013-07-21DOI: 10.1109/CSQRWC.2013.6657397
M. S. Ellis
A miniature planar monopole ultrawideband (UWB) antenna with a wide bandwidth is described. The radiator and ground plane are etched on 11mm×15 mm FR4 printed circuit board. Here, a staircase profile is made at the bottom and top parts of the radiator and ground plane respectively, to improve the impedance matching of the antenna. The proposed antenna has a useable fractional bandwidth of over 120% (7.5-30GHz for VSWR <; 2.5). The measured results show good far field radiation properties of the antenna.
介绍了一种具有宽频带的微型平面单极子超宽带天线。散热器和接地面蚀刻在11mm×15 mm FR4印刷电路板上。这里，在散热器和接地面的底部和顶部分别做一个阶梯形，以提高天线的阻抗匹配。该天线的可用分数带宽超过120% (VSWR < 7.5-30GHz);2.5)。测量结果表明，该天线具有良好的远场辐射性能。
{"title":"Miniature staircase profile printed monopole antenna for ultrawideband applications","authors":"M. S. Ellis","doi":"10.1109/CSQRWC.2013.6657397","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657397","url":null,"abstract":"A miniature planar monopole ultrawideband (UWB) antenna with a wide bandwidth is described. The radiator and ground plane are etched on 11mm×15 mm FR4 printed circuit board. Here, a staircase profile is made at the bottom and top parts of the radiator and ground plane respectively, to improve the impedance matching of the antenna. The proposed antenna has a useable fractional bandwidth of over 120% (7.5-30GHz for VSWR <; 2.5). The measured results show good far field radiation properties of the antenna.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114725395","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 : 2013-07-21DOI: 10.1109/CSQRWC.2013.6657418
Xiong Jiuliang, Wu Zhancheng, Yongwei Sun, Liu Xinyuan
The battlefield electromagnetic environment of radio fuze was analyzed and feature modeled. Characteristics analysis of the battlefield electromagnetic environment of radio fuze was done. Then, the description methods of the various types of electromagnetic signals were given. Finally, the feature models in time-domain, frequency-domain, space-domain and energy-domain of the electromagnetic environment were established. The results lay a foundation for further research on radio fuze electromagnetic environment effects, simulation analysis and performance evaluation.
{"title":"Analysis and feature modeling of battlefield electromagnetic environment of radio fuze","authors":"Xiong Jiuliang, Wu Zhancheng, Yongwei Sun, Liu Xinyuan","doi":"10.1109/CSQRWC.2013.6657418","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657418","url":null,"abstract":"The battlefield electromagnetic environment of radio fuze was analyzed and feature modeled. Characteristics analysis of the battlefield electromagnetic environment of radio fuze was done. Then, the description methods of the various types of electromagnetic signals were given. Finally, the feature models in time-domain, frequency-domain, space-domain and energy-domain of the electromagnetic environment were established. The results lay a foundation for further research on radio fuze electromagnetic environment effects, simulation analysis and performance evaluation.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121963297","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 : 2013-07-21DOI: 10.1109/CSQRWC.2013.6657433
Haitao Wang, Lihua Song, Hui Chen, Li Yan
Network measurement and evaluation is one of important means for dealing with network theory researches, management and engineer development. In this paper, evolution of IP network measurement is reviewed at first. Then, basic concepts and various technologies of network measurement are introduced, including active performance measurement, passive flow measurement, network tomography and network probe. Afterwards, performance evaluation index and several popular network performance evaluation methods are explored. Finally, brief summarization is given.
{"title":"Study on network measurement technologies and performance evaluation methods","authors":"Haitao Wang, Lihua Song, Hui Chen, Li Yan","doi":"10.1109/CSQRWC.2013.6657433","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657433","url":null,"abstract":"Network measurement and evaluation is one of important means for dealing with network theory researches, management and engineer development. In this paper, evolution of IP network measurement is reviewed at first. Then, basic concepts and various technologies of network measurement are introduced, including active performance measurement, passive flow measurement, network tomography and network probe. Afterwards, performance evaluation index and several popular network performance evaluation methods are explored. Finally, brief summarization is given.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"249 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122137639","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 : 2013-07-21DOI: 10.1109/CSQRWC.2013.6657376
X. F. Xu, J. Li
The radiation characteristics calculation of antenna mounted on electrically large platform requires to consume a great deal of physical memory. The problems which can not be calculated due to the insufficient memory can be solved by Out-of-Core solving method, but it takes too longer time because the speed limit of the data reading/writing on the disk. To solve the above problem, parallel Out-of-Core computing method is proposed. In order to use the memory sufficiently and reduce the reading/writing time, block parallel Out-of-Core computing method is also presented. The radiation patterns of a monopole mounted on a metal column and a shipborne antenna model are calculated respectively. The solving time of In-Core solver and Out-of-Core solver with different numbers of blocks and using different numbers of processors are compared respectively. The results indicate that the method in this paper can efficiently solve the radiation problems of antenna mounted on electrically larger platform, the solving time is only 6.3 % more than the In-Core method's, and the calculation precision is not lost.
{"title":"Parallel Out-of-Core MOM for analyzing radiation characteristics of antenna mounted on electrically large platform","authors":"X. F. Xu, J. Li","doi":"10.1109/CSQRWC.2013.6657376","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657376","url":null,"abstract":"The radiation characteristics calculation of antenna mounted on electrically large platform requires to consume a great deal of physical memory. The problems which can not be calculated due to the insufficient memory can be solved by Out-of-Core solving method, but it takes too longer time because the speed limit of the data reading/writing on the disk. To solve the above problem, parallel Out-of-Core computing method is proposed. In order to use the memory sufficiently and reduce the reading/writing time, block parallel Out-of-Core computing method is also presented. The radiation patterns of a monopole mounted on a metal column and a shipborne antenna model are calculated respectively. The solving time of In-Core solver and Out-of-Core solver with different numbers of blocks and using different numbers of processors are compared respectively. The results indicate that the method in this paper can efficiently solve the radiation problems of antenna mounted on electrically larger platform, the solving time is only 6.3 % more than the In-Core method's, and the calculation precision is not lost.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132013064","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 : 2013-07-21DOI: 10.1109/CSQRWC.2013.6657458
R. Xu, L. Guo, Z. F. Wei
In this work, the electromagnetic scattering from an arbitrary conducting target above the PM sea surface is studied by a hybrid method combining the finite element method (FEM) with the boundary integral equation (BIE). As the integral boundary can be set at anywhere with the arbitrary shape, the conformal truncated boundaries are built to reduce the computational region combining with the domain decomposition method (DDM). The strategy of hybrid FEM/BIE and the modeling method are presented with their validity evaluated by the method of moment (MoM). Properties of the bistatic scattering from composite model under different conditions are discussed in detail.
{"title":"Study on composite scattering from an arbitrary conducting object above PM sea surface with FEM/BIE","authors":"R. Xu, L. Guo, Z. F. Wei","doi":"10.1109/CSQRWC.2013.6657458","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657458","url":null,"abstract":"In this work, the electromagnetic scattering from an arbitrary conducting target above the PM sea surface is studied by a hybrid method combining the finite element method (FEM) with the boundary integral equation (BIE). As the integral boundary can be set at anywhere with the arbitrary shape, the conformal truncated boundaries are built to reduce the computational region combining with the domain decomposition method (DDM). The strategy of hybrid FEM/BIE and the modeling method are presented with their validity evaluated by the method of moment (MoM). Properties of the bistatic scattering from composite model under different conditions are discussed in detail.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130800529","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 : 2013-07-21DOI: 10.1109/CSQRWC.2013.6657337
Jin-Ye Wang, C. Qi, Weifeng Huang, Zhiqin Zhao, Z. Nie
Composite electromagnetic scattering from a three-dimensional (3-D) perfectly electrically conducting (PEC) target partially buried in a two-dimensional (2-D) random rough surface is investigated in this paper. The random rough surface is represented using Gaussian correlation function, and generated by the spectral method. An accurate composite geometry modeling method is used, which is based on the non-uniform rational B-spline surface (NURBS). With this method,a 3-D partially buried target and a 2-D rough surface are combined as a composite whole, which is utilized to assist surface meshing and accurate electromagnetic scattering calculation. The analytic physical optics (PO) and the numerical multilevel fast multipole algorithm (MLFMA) are used in the electromagnetic simulation. Then, the results of bistatic radar cross section (RCS) of the combinational model for both polarization modes in different incident directions are also given.
{"title":"Analyses of electromagnetic scattering from a three-dimensional target partially buried in a two-dimensional rough surface","authors":"Jin-Ye Wang, C. Qi, Weifeng Huang, Zhiqin Zhao, Z. Nie","doi":"10.1109/CSQRWC.2013.6657337","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657337","url":null,"abstract":"Composite electromagnetic scattering from a three-dimensional (3-D) perfectly electrically conducting (PEC) target partially buried in a two-dimensional (2-D) random rough surface is investigated in this paper. The random rough surface is represented using Gaussian correlation function, and generated by the spectral method. An accurate composite geometry modeling method is used, which is based on the non-uniform rational B-spline surface (NURBS). With this method,a 3-D partially buried target and a 2-D rough surface are combined as a composite whole, which is utilized to assist surface meshing and accurate electromagnetic scattering calculation. The analytic physical optics (PO) and the numerical multilevel fast multipole algorithm (MLFMA) are used in the electromagnetic simulation. Then, the results of bistatic radar cross section (RCS) of the combinational model for both polarization modes in different incident directions are also given.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125401543","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 : 2013-07-21DOI: 10.1109/CSQRWC.2013.6657369
Li Linqian, Wei Bing, Yang Qian, Ge De-biao
The computation region is divided into total and scattered field regions, total and scattered field scalar wave formulation are given according to Maxwell's equations and first-order absorbing boundary condition. Then the residuals of entire computation region are given. The weak form solutions of wave equation are given by take integration over computation domain and its boundary. Finally, a numerical example is given to illustrate the feasibility of the presented scheme.
{"title":"Introduction of plane-wave of two-dimension node TDFEM bases on method of Galerkin: TM case","authors":"Li Linqian, Wei Bing, Yang Qian, Ge De-biao","doi":"10.1109/CSQRWC.2013.6657369","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657369","url":null,"abstract":"The computation region is divided into total and scattered field regions, total and scattered field scalar wave formulation are given according to Maxwell's equations and first-order absorbing boundary condition. Then the residuals of entire computation region are given. The weak form solutions of wave equation are given by take integration over computation domain and its boundary. Finally, a numerical example is given to illustrate the feasibility of the presented scheme.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122912554","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 : 2013-07-21DOI: 10.1109/CSQRWC.2013.6657444
Wang Jianzhong, Zhang Ping
In this paper we focuses on the optimal design of Multi-Granularity optical Cross-connect (MG-OXC) node based on three stage (fiber, waveband, and wavelength) multiplexing scheme and dynamic algorithm (including routing and multi-Granularity assignment algorithm) for Multi-Granularity Optical Networks (MG-ON), under dynamic traffic conditions. The proposed MG-OXC routing and assignment algorithm can reduce both the number of used ports and the cost of an existing network. The performance of our MG-ON scenario is evaluated with numerical experiments under NSFNET topology and comparisons are made with OXC-based wavelength routed optical networks. The results show that the performance of MG-ON is close to WRON with proper design.
{"title":"Based on MG-OXC routing and multi-Granularity assignment algorithm","authors":"Wang Jianzhong, Zhang Ping","doi":"10.1109/CSQRWC.2013.6657444","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657444","url":null,"abstract":"In this paper we focuses on the optimal design of Multi-Granularity optical Cross-connect (MG-OXC) node based on three stage (fiber, waveband, and wavelength) multiplexing scheme and dynamic algorithm (including routing and multi-Granularity assignment algorithm) for Multi-Granularity Optical Networks (MG-ON), under dynamic traffic conditions. The proposed MG-OXC routing and assignment algorithm can reduce both the number of used ports and the cost of an existing network. The performance of our MG-ON scenario is evaluated with numerical experiments under NSFNET topology and comparisons are made with OXC-based wavelength routed optical networks. The results show that the performance of MG-ON is close to WRON with proper design.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131486272","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}
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