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2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference最新文献

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Design of a parabolic reflector antenna with a compact splash-plate feed 具有紧凑飞溅板馈源的抛物面反射天线的设计
2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference Pub Date : 2013-07-21 DOI: 10.1109/CSQRWC.2013.6657398
Chuan-Chang Liu, Shiwen Yang, Z. Nie
{"title":"Design of a parabolic reflector antenna with a compact splash-plate feed","authors":"Chuan-Chang Liu, Shiwen Yang, Z. Nie","doi":"10.1109/CSQRWC.2013.6657398","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657398","url":null,"abstract":"A parabolic reflector antenna with a compact splash-plate feed is designed and optimized in this paper. A dielectric connection portion is used to combine the waveguide and splash-plate sub-reflector. The use of dielectric material not only can achieve low blockage as no struts are needed to support the feed, but also can adjust the impedance of the antenna. The designed antenna is able to achieve a low VSWR <; 1.17 within the frequency range of 21.2 GHz-23 GHz. In addition, some chokes are added on the back of the splash-plate to suppress the radiation of the undesired directions. A corrugated fence is added along the edge of parabolic reflector to achieve better performance, in which the front to back ratio is significantly improved. The gain of the designed parabolic reflector antenna is 40.1-41.06 dBi within 21.2 GHz-23 GHz. Moreover, by using the designed splash-plate feed, simulation results show that the radiation efficiency of the parabolic reflector antenna is about 57.7%-62.5% within the operation bandwidth.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"37 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":"127760630","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: 15
Compact E-plane bandpass filter with high selectivity in Ka-band 紧凑的e平面带通滤波器，在ka波段具有高选择性
2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference Pub Date : 2013-07-21 DOI: 10.1109/CSQRWC.2013.6657358
J. Y. Jin, X. Q. Lin, F. Cheng, X. Deng, Y. Fan
{"title":"Compact E-plane bandpass filter with high selectivity in Ka-band","authors":"J. Y. Jin, X. Q. Lin, F. Cheng, X. Deng, Y. Fan","doi":"10.1109/CSQRWC.2013.6657358","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657358","url":null,"abstract":"In this paper, a novel compact E-plane bandpass waveguide filter in Ka-band with high selectivity is proposed. An extra resonant cell is designed and integrated to the metal septa E-plane bandpass filter to improve the performance. Two transmission zeros at both sides of the passband are obtained, which contribute to the high-skirt selectivity. The E-plane bandpass filter can achieve different performance by changing the size of the extra resonant cell.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"71 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":"115543820","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 miniaturized Marchand balun based on the LTCC technology 一种基于LTCC技术的小型化马尔尚平衡器
2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference Pub Date : 2013-07-21 DOI: 10.1109/CSQRWC.2013.6657362
Guo-Qing Zhang, Jian‐Xin Chen, H. Tang
{"title":"A miniaturized Marchand balun based on the LTCC technology","authors":"Guo-Qing Zhang, Jian‐Xin Chen, H. Tang","doi":"10.1109/CSQRWC.2013.6657362","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657362","url":null,"abstract":"In this paper, a miniaturized multilayer Marchand balun based on low temperature co-fired ceramic (LTCC) technology is presented. By folding the broadsided coupled transmission line vertically and horizontally in the three dimensional (3-D) space, the circuit size of the balun is greatly reduced comparing to the conventional design of the balun circuits realized on the printed circuit board(PCB). A Marchand balun at 1.1GHz is designed and simulated with the whole size of 5mm×4.8mm×1.8mm.The simulation results of the design show a good performance of the balun. Thus, it can be suitable for the application of wireless communication systems.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"21 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":"129428472","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
3D compact FD-FD stencils based on spherical Fourier-Bessel series 基于球面傅里叶-贝塞尔级数的三维紧凑FD-FD模板
2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference Pub Date : 2013-07-21 DOI: 10.1109/CSQRWC.2013.6657374
Hung-Wen Chang, Sin-Yuan Mu, Chang-Chien Chin-Min
{"title":"3D compact FD-FD stencils based on spherical Fourier-Bessel series","authors":"Hung-Wen Chang, Sin-Yuan Mu, Chang-Chien Chin-Min","doi":"10.1109/CSQRWC.2013.6657374","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657374","url":null,"abstract":"Numerical methods for obtaining solutions of complex wave field satisfying Helmholtz equation are of great importance. We extend the work of the method of connected local fields (CLF) to the 3-D case. Using a local field expansion from a truncated spherical Fourier-Bessel series (SFBS) we are able to obtain four variations of 3D compact frequency-domain (FD) stencils. We verify the effectiveness of these 3D compact stencils by computing the numerical 3D Green's function. The results compare well with the analytic solution at a low three points per wavelength sampling density for the most accurate formulation.","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":"130777113","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
Spam messages classification algorithm based on BP and isomap 基于BP和isommap的垃圾邮件分类算法
2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference Pub Date : 2013-07-21 DOI: 10.1109/CSQRWC.2013.6657431
C. Yu, Wanli Feng, Lei Zhou, Jin Ding
{"title":"Spam messages classification algorithm based on BP and isomap","authors":"C. Yu, Wanli Feng, Lei Zhou, Jin Ding","doi":"10.1109/CSQRWC.2013.6657431","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657431","url":null,"abstract":"In this paper, a classification algorithm for spam messages by using the neural network is proposed. First, the spam messages are pretreated, including word separation, feature word extraction, representation with feature word, and formation of text matrix. Then, the dimensionality of the text matrix is reduced by using isomap algorithm. Finally, the classification is achieved by the BP neural network. According to the experimental results, the algorithm gives good classification results.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"24 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":"121454359","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 2×2 wideband and high-gain Ka- band LTCC patch antenna array using aritificial magnetic conductor structures 一种2×2采用人工磁导体结构的宽带高增益Ka波段LTCC贴片天线阵列
2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference Pub Date : 2013-07-21 DOI: 10.1109/CSQRWC.2013.6657391
Wanchen Yang, Hao Wang, W. Che, Yong Huang, Jie Wang
{"title":"A 2×2 wideband and high-gain Ka- band LTCC patch antenna array using aritificial magnetic conductor structures","authors":"Wanchen Yang, Hao Wang, W. Che, Yong Huang, Jie Wang","doi":"10.1109/CSQRWC.2013.6657391","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657391","url":null,"abstract":"The artificial magnetic conductor structures (AMCs) is proposed to enhance the bandwidth and gain of a millimeter-wave (mmW) patch antenna. A multi-layer laminated waveguide (LWG) low-loss array feeding network and the multi-layer T-type divider are specially analyzed and designed. The overall structure of an mmW antenna array using AMCs is designed in low temperature co-fired ceramics (LTCC) process in which the feeding network and compact transition between LWG and rectangle waveguide (RWG) are integrated. The simulated bandwidth of the 2×2 array is 11.43% which is much larger than that of the reference array on PEC plane. The maximum gain can reach 12.9 dBi while the stable radiation pattern can be observed also.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"46 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":"127735696","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: 3
A novel miniaturized and dual-band filter of substrate integrated waveguide based on SCMRC 一种基于SCMRC的新型小型化基片集成波导双带滤波器
2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference Pub Date : 2013-07-21 DOI: 10.1109/CSQRWC.2013.6657357
Li Dan, Tong Chuang-ming, Peng Peng, Zou Xiong, Pang Wei-jian
{"title":"A novel miniaturized and dual-band filter of substrate integrated waveguide based on SCMRC","authors":"Li Dan, Tong Chuang-ming, Peng Peng, Zou Xiong, Pang Wei-jian","doi":"10.1109/CSQRWC.2013.6657357","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657357","url":null,"abstract":"A novel spirality compact microstrip resonators cell (SCMRC) is ameliorated and the miniaturized and dual-band filter of substrate integrated waveguide (SIW) based on SCMRC is designed. The filter has a passband between 3.46-3.71GHz and minishes cutoff frequency of SIW, so the filter achieves miniaturization. Besides, the filter occurs another passband between 5.84-5.91GHz, the second passband can be adjusted by changing the space between two paired SCMRCs. The good agreement between the measured results and the simulated results demonstrates that the design of miniaturized and dual-band filter of SIW based on SCMRC is effective.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"380 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":"116374126","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
Dispersion characteristics of compact 3-D formulae based on local spherical fourier-bessel series 基于局部球面傅里叶-贝塞尔级数的紧致三维公式的色散特性
2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference Pub Date : 2013-07-21 DOI: 10.1109/CSQRWC.2013.6657335
Sin-Yuan Mu, Hung-Wen Chang
{"title":"Dispersion characteristics of compact 3-D formulae based on local spherical fourier-bessel series","authors":"Sin-Yuan Mu, Hung-Wen Chang","doi":"10.1109/CSQRWC.2013.6657335","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657335","url":null,"abstract":"Most compact FD-FD stencils for discretizing 3-D homogeneous Helmholtz equation suffers from so-called numerical dispersion due to inadequate spatial sampling of the EM field. To verify the effectiveness of newly-derived compact local spherical Fourier-Bessel series (LSFBS) -based formulae, including local field expansion (LFE) face-centered LFE-FC-7, edge-centered LFE-EC-13, corner-point LFE-CR-9, and LFE3D-27, we investigate dispersion characteristics of those formulae. The classical FD formula (FD2-7) requires that the number of sampling points per wavelength is fifteen or more to reduce the relative error of phase velocity to less than 1% and to reduce the relative error of group velocity to less than 2.5%. However, with the LSFBS-based formula (LFE3D-27) it takes only three points per wavelength to achieve less than 1% the relative phase and group velocity errors along various chosen directions.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"78 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":"116374994","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
Harmonic suppressed differential phase shifter 谐波抑制差分移相器
2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference Pub Date : 2013-07-21 DOI: 10.1109/CSQRWC.2013.6657344
S. Zheng, Y. Pan, Y. Long
{"title":"Harmonic suppressed differential phase shifter","authors":"S. Zheng, Y. Pan, Y. Long","doi":"10.1109/CSQRWC.2013.6657344","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657344","url":null,"abstract":"For the first time, a broadband differential phase shifter with harmonic suppression is proposed. The proposed structure is not only used to provide a constant differential phase shift over the desired wide bandwidth, but also have a significant harmonic band rejection at the same time. Design formulas for the structure are derived using a systematic analytic technique. The optimal design parameters for different typical differential phase shift values are provided to allow for a quick design procedure. To illustrate the principles, a broadband 45° phase shifter is designed, fabricated and measured. It achieved excellent performance with small insertion loss, small phase deviation and good out of band rejection.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"203 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":"116177047","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
Primary study of foilless diode used in 0.34THz source 0.34THz源中无箔二极管的初步研究
2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference Pub Date : 2013-07-21 DOI: 10.1109/CSQRWC.2013.6657441
Shuang Li, Guang-qiang Wang, Chang-jiang Tong, Xue-feng Wang
{"title":"Primary study of foilless diode used in 0.34THz source","authors":"Shuang Li, Guang-qiang Wang, Chang-jiang Tong, Xue-feng Wang","doi":"10.1109/CSQRWC.2013.6657441","DOIUrl":"https://doi.org/10.1109/CSQRWC.2013.6657441","url":null,"abstract":"A high beam quality foilless diode for high power 0.34THz surface-wave oscillator (SWO) source is presented in this paper. In order to research the influence of the guiding magnetic field and the structural parameters on the performance of foilless diode, the method of 2.5 dimensional particle-in-cell (PIC) codes UNIPIC is introduced. The simulation results suggest that the guiding magnetic field should be higher than 2.5 tesla and the distance between the beam and anode-wall had better to be set as 0.22~0.40mm considering the cyclotron radius of electron. The radius of anode has an important impact on the diode and it is chose as 5~8 mm in 0.34THz source. The adjustment of the distance between cathode and anode is also available to affect the diode. Finally, the optimized diode is studied and the diode can provide a high quality beam with the current of 2.3kA and electron energy of 380keV, which satisfies the demand of 0.34THz source well.","PeriodicalId":355180,"journal":{"name":"2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference","volume":"2 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":"114926056","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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