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2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)最新文献

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Design of the L-band wideband LFM signal generator based on DDS and frequency multiplication 基于DDS和倍频的l波段宽带LFM信号发生器的设计
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6230321
Qinghong Li, Dong Yang, Xiaohua Mu, Q. Huo
{"title":"Design of the L-band wideband LFM signal generator based on DDS and frequency multiplication","authors":"Qinghong Li, Dong Yang, Xiaohua Mu, Q. Huo","doi":"10.1109/ICMMT.2012.6230321","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6230321","url":null,"abstract":"Wideband linear frequency modulated (LFM) signal is widely used in precise distance measuring radar system. As traditional methods of generating LFM signal have a lot of disadvantages such as instability and nonlinearity we propose a different solution to wideband LFM signal generator in L-band based on DDS and frequency multiplication. The proposed method produces the baseband LFM signal using the DDS, and then adds the baseband signal into the frequency multiplication system; last we can achieve a pure L-band wideband LFM signal. The measurement result shows that the proposed can fulfill each requirement of anticipant satisfactorily.","PeriodicalId":421574,"journal":{"name":"2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132495721","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: 21
Modeling and designing of Chebyshev type coupled photonic crystal filters based on coupling matrix 基于耦合矩阵的切比雪夫型耦合光子晶体滤波器的建模与设计
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6230467
Zuoxing Dai, Yuanyun Liu, Y. Heng
{"title":"Modeling and designing of Chebyshev type coupled photonic crystal filters based on coupling matrix","authors":"Zuoxing Dai, Yuanyun Liu, Y. Heng","doi":"10.1109/ICMMT.2012.6230467","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6230467","url":null,"abstract":"A method for modeling and designing of coupled resonators photonic crystal (PC) filters for wavelength division multiplexing (WDM) systems is presented. This proposed method is based on coupling coefficients of intercoupled resonators and the external quality factors of the input and output resonators based on the circuit approach. A general formulation for extracting the two types of parameters from the physical structure of the PC filters is given. At last, we redesign a third-order Chebyshev filter which has a center frequency of 193.55THz, a flat bandwidth of 50GHz, and ripples of 0.1 dB in the pass-band. The filter's structure derived from the proposed method is more compact.","PeriodicalId":421574,"journal":{"name":"2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129966785","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 scattering from an object above rough surface by using characteristic basis functions and ACA scheme 基于特征基函数和ACA方法的粗糙表面上物体电磁散射分析
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6230072
Y. An, Quanquan Wang, G. Yu, D. Ding, Z. Fan, Rushan Chen
{"title":"Analysis of electromagnetic scattering from an object above rough surface by using characteristic basis functions and ACA scheme","authors":"Y. An, Quanquan Wang, G. Yu, D. Ding, Z. Fan, Rushan Chen","doi":"10.1109/ICMMT.2012.6230072","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6230072","url":null,"abstract":"A fast algorithm is proposed to calculate the difference field RCS (d-RCS) of the electromagnetic scattering from an object above rough surface. The electric field integral equation (EFIE) of the difference induced field on the rough surface and the induced field on the target are derived, and is solved by an iterative solver. The characteristic basis functions (CBFs) are used to calculate the induced field on the rough surface, which is part of the right-hand side of the system. Since the coupling matrices between the object and rough surface and the non-self interaction matrices of the rough surface are rank deficient, it is accelerated by the adaptive cross approximation (ACA) algorithm. Through numerical experiments, it is concluded that the proposed method is efficient in analyzing the electromagnetic scattering from an object above rough surface.","PeriodicalId":421574,"journal":{"name":"2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130075201","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 SPST PIN switch for C-band dual-band antenna applications 用于c波段双频天线应用的SPST PIN开关
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6230305
Huiyu Li, Xiping Yue, G. Hua, Houxing Zhou, W. Hong
{"title":"A SPST PIN switch for C-band dual-band antenna applications","authors":"Huiyu Li, Xiping Yue, G. Hua, Houxing Zhou, W. Hong","doi":"10.1109/ICMMT.2012.6230305","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6230305","url":null,"abstract":"In this paper, the design of a C-band PIN diode switch for dual-band antenna application is presented. The purpose of this design is to meet the requirement that the antenna can operate at two different frequencies by turning on and off it. When the PIN diode is reverse biased, the switch is off and the antenna operates at 3.6GHz. When the PIN diode is forward biased, the switch is on and the antenna operates at 2.4GHz. The measured impedance bandwidth (return loss<;-10dB) is 550 MHz (2-2.55GHz) and 1.22GHz (3.1-4.32GHz) for 2.4GHz and 3.6GHz, which is very close to the simulation results. At the mean time, the switch barely has effect on the radiation patterns of the antenna.","PeriodicalId":421574,"journal":{"name":"2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134394786","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: 4
Progress on the V-band traveling-wave tube v波段行波管研究进展
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6229940
Yang Liu, Jin Xu, Yanyu Wei, Xiong Xu, F. Shen, J. Lai, Minzhi Huang, T. Tang, Y. Gong
{"title":"Progress on the V-band traveling-wave tube","authors":"Yang Liu, Jin Xu, Yanyu Wei, Xiong Xu, F. Shen, J. Lai, Minzhi Huang, T. Tang, Y. Gong","doi":"10.1109/ICMMT.2012.6229940","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6229940","url":null,"abstract":"In this paper, the recent research progress on the V-band traveling-wave tube in our laboratory is presented. Several robust full-metal slow-wave structures, including two circular beam structures and two sheet-beam structures, are investigated and employed to design the V-band traveling-wave tube. The corresponding operating characteristics are predicted by using the particle-in-cell method.","PeriodicalId":421574,"journal":{"name":"2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129400417","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
The stability analysis of the hybrid thin-slot algorithm 混合薄槽算法的稳定性分析
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6229967
R. Xiong, B. Chen, Y. Mao, Z. Cai
{"title":"The stability analysis of the hybrid thin-slot algorithm","authors":"R. Xiong, B. Chen, Y. Mao, Z. Cai","doi":"10.1109/ICMMT.2012.6229967","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6229967","url":null,"abstract":"Sub-cellular FDTD algorithms for modeling thin slots in conductors have previously been developed. The integral-equation based hybrid thin-slot algorithm (HTSA) has been shown to agree well with results of other methods for thin slots in planes. The HTSA can not only model slots having zero thickness but that having depth. However, instability occurred for some cases when the method is used. In this work, the stability of the HTSA is analyzed with different slot width, depth, and length, and the source effect on the stability has also been studied. The analysis shows that the HTSA is best for short, narrow and thick apertures, and when long, wide, thin slots are involved, other ways should be occupied.","PeriodicalId":421574,"journal":{"name":"2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125232853","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
Stop-band analysis of multi-via EBG structure 多通孔EBG结构的阻带分析
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6230432
Yan Zhang, Wei Zhang, Tao Hong, Shan-wei Lu, Xiao-ning Ni
{"title":"Stop-band analysis of multi-via EBG structure","authors":"Yan Zhang, Wei Zhang, Tao Hong, Shan-wei Lu, Xiao-ning Ni","doi":"10.1109/ICMMT.2012.6230432","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6230432","url":null,"abstract":"The band-gap property of novel multi-via EBG structure is analyzed in this paper. Firstly, the multi-via structure is applied into square and hexagonal EBG structures, respectively. Both the diagonal-direction-via case and the axis-direction-via case are considered. Secondly, the multi-via square and the multi-via hexagonal EBG structures are simulated. And the band-gap parameters of multi-via EBG structures, including bandwidth and center frequency, are compared with those of the mushroom-like EBG structure. In addition, the effect of the multi-via placement, such as the edge-via position and the distance between center via and edge via, on stop-band bandwidth and stop-band center frequency is investigated.","PeriodicalId":421574,"journal":{"name":"2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130787518","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
Simplifying analysis for symmetry conformal array with arbitrary excitation weights 任意激励权对称共形阵的简化分析
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6230407
K. Xiao, F. Zhao, L. Ye, H. Qi, Z. Liu, S. Chai
{"title":"Simplifying analysis for symmetry conformal array with arbitrary excitation weights","authors":"K. Xiao, F. Zhao, L. Ye, H. Qi, Z. Liu, S. Chai","doi":"10.1109/ICMMT.2012.6230407","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6230407","url":null,"abstract":"The simplifying analysis for single symmetry conformal array with arbitrary excitation weights is proposed. By substituting the original array with a magnetic and an electronic symmetry array with calculated excitation weights, the original conformal array can be analyzed from the half geometry, which reduces memory requirement to half. Finally, a single symmetry sectoral cylinder microstrip array is employed to validate the proposed technique.","PeriodicalId":421574,"journal":{"name":"2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130880132","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
The system performance in STARing Digital Multiple Beams SAR 面向数字多波束SAR系统性能研究
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6230318
Jiang Tao, Sheng-li Wang
{"title":"The system performance in STARing Digital Multiple Beams SAR","authors":"Jiang Tao, Sheng-li Wang","doi":"10.1109/ICMMT.2012.6230318","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6230318","url":null,"abstract":"In this paper, an innovative imaging concept of STARing Digital Multiple Beam Synthetic Aperture Radar (SAR) is presented for overcoming the shortcoming of traditional SAR in high-resolution wide-swath imaging, which is the combination of the digital beam-forming (DBF) technology with the principle of SAR. The new imaging concept in this paper can avoid the restriction in the traditional SAR, by dividing the imaging area into several sub-patches to imaging independently. In additional, the whole elements in antenna is employed to form multiple beams in receiver with high gain by DBF, and all of them are assigned to achieving the imaging of every sub-patch by staring observation. The staring observation can extend the length of synthetic aperture and improve the azimuth resolution. At last, the mosaicking process is employed to obtain the high resolution width swath imaging. The simulation shows the STARing Digital Multi-Beam SAR can break though the limitation in the tradition SAR effectively, and have the good system performance.","PeriodicalId":421574,"journal":{"name":"2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"282 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133070661","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 low phase noise wideband VCO in 65nm RF CMOS for low power applications 低相位噪声宽带压控振荡器65nm射频CMOS低功耗应用
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6229997
Zhou Mingzhu
{"title":"A low phase noise wideband VCO in 65nm RF CMOS for low power applications","authors":"Zhou Mingzhu","doi":"10.1109/ICMMT.2012.6229997","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6229997","url":null,"abstract":"A wideband LC VCO used in low power and phase noise applications is described. A phase noise model is utilized for its lower phase noise design. A switched capacitor array, two power supply and substrate noise filters are involved in the circuit. The phase noise imported by the MOS channel current and tank less resistance is modeled to give approximate evaluation of the circuit performance. The circuit has been implemented in a standard 65 nm CMOS technology. The test result indicates that the frequency of the VCO is from 750 MHz to 1.5 GHz, and the phase noise is -125.84 dBc/Hz @1 MHz in 1.21GHz. The chip consumes less than 2.25 mW with 1.2 V power supply, and occupies 0.7 mm2 areas.","PeriodicalId":421574,"journal":{"name":"2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133669568","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: 7
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