发布求助
文献互助 智能选刊 最新文献

The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology最新文献

筛选
英文 中文
A ultra-low-voltage 6.9 GHz CMOS quadrature VCO with superharmonic and back-gate coupling 一种具有超谐波和后门耦合的超低电压6.9 GHz CMOS正交压控振荡器
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238168
J. Lou, Jun Zhang, Yuanlin Gao, Huihua Liu
{"title":"A ultra-low-voltage 6.9 GHz CMOS quadrature VCO with superharmonic and back-gate coupling","authors":"J. Lou, Jun Zhang, Yuanlin Gao, Huihua Liu","doi":"10.1109/MMWCST.2012.6238168","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238168","url":null,"abstract":"A 0.35V fully-integrated quadrature voltage-control oscillator (QVCO) is presented, which consists two LC-tank VCOs with superharmonic and back-gate coupling techniques to couple them to run in quadrature. The proposed QVCO is simulated in the 130 nm CMOS technology. All MOSFETs are designed in the deep n-well. Consuming the power of 3.4 mW from a 0.35 V supply voltage, the QVCO achieves a frequency tuning range from 6.54 GHz to 6.98 GHz as the tuning voltage is varied from 0 V to 0.4 V. The simulation result shows that the phase noise at 1 MHz offset is -108.1 dBc/Hz at the carrier frequency of 6.98 GHz and the figure of merit (FOM) of the QVCO is -180 dBc/Hz. It is comparable or better than that of other state-of-the-art QVCO designs operating at much higher supply voltage.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125222185","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: 6
Unitary analysis of T-matrix method in 2D dielectric scattering by TE wave incident TE波入射下二维介质散射的t矩阵法的统一分析
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238119
Changwei Xu, Zhu Feng, Li-na Liu, D. Niu
{"title":"Unitary analysis of T-matrix method in 2D dielectric scattering by TE wave incident","authors":"Changwei Xu, Zhu Feng, Li-na Liu, D. Niu","doi":"10.1109/MMWCST.2012.6238119","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238119","url":null,"abstract":"As a numerical method for dealing with irregular boundaries, T-matrix method does not use the electromagnetic field boundary conditions directly to solve problems. However its physical nature is based on analytic wave functions, as for the irregular boundary, it is also available by analytic continuity. So if the cross-section of a particle tends to circle, the extension area should equals to zero. Therefore in theory, the results obtained by T-matrix should be identical with the classical analytic solutions. In this paper, the full analysis of T-matrix structure is given, and when the boundary of a dielectric is limited to the cylindrical one, unitary transition from T-matrix method to analytic solutions in two dimensional scattering is completed by TE wave incident.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125394972","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
On-chip tapered transmission line transformer based on coplanar waveguide 基于共面波导的片上锥形传输线变压器
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238173
Huan Zou, Haiyang Wang, Pingshan Wang
{"title":"On-chip tapered transmission line transformer based on coplanar waveguide","authors":"Huan Zou, Haiyang Wang, Pingshan Wang","doi":"10.1109/MMWCST.2012.6238173","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238173","url":null,"abstract":"A traditional tapered transmission line transformer (TLT) is implemented in a commercial 0.13 μm digital complementary-metal-oxide-semiconductor (CMOS) technology to raise the short pulse amplitude which is generated on-chip. The transformer, based on 20 coplanar waveguides whose impedances are gradually increased from 50 ohm to 93 ohm, is analyzed through Cadence™ Spectre schematic and post-layout simulations. The pulse generator and the linear tapered transmission line transformer are fabricated in the same technology, the test results show that after the transformer the amplitude of the output pulse generated on-chip is successfully enlarged from 0.18V to 0.24V when the input DC voltage is 1.6V","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115537314","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: 2
Simulation study on dispersion shaping and harmonic suppression in traveling-wave tubes 行波管色散整形与谐波抑制的仿真研究
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238143
Zhao-Jun Zhu, B. Jia, Chaolei Wei
{"title":"Simulation study on dispersion shaping and harmonic suppression in traveling-wave tubes","authors":"Zhao-Jun Zhu, B. Jia, Chaolei Wei","doi":"10.1109/MMWCST.2012.6238143","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238143","url":null,"abstract":"This paper describes the investigation of broadband interaction and harmonic suppression. A special dispersion shape used in broadband traveling-wave tubes (TWT) is obtained. The and simulation studies of negative dispersion are presented. On the basis of these studies, a broadband TWT used in microwave power module (MPM) is designed. Compared with the old TWT with flat dispersion, the new one with negative dispersion decreases the second harmonic content about 10 dB and improves the fundamental efficiency about 5% at the low end of the band. The modified TWT is fabricated and the simulation results meet the measurements very well.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"171 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122360986","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
110GHz high performanced varistor tripler 110GHz高性能压敏电阻三倍器
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238180
Bo Zhang, Yong Fan, S. Zhang, X. Yang, F. Zhong, Zhe Chen
{"title":"110GHz high performanced varistor tripler","authors":"Bo Zhang, Yong Fan, S. Zhang, X. Yang, F. Zhong, Zhe Chen","doi":"10.1109/MMWCST.2012.6238180","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238180","url":null,"abstract":"A 110GHz Schottky diode frequency tripler made with four barrier diodes by two DBES105a diodes from United Monolithic Semiconductor (UMS) company is presented. The circuit is design on a suspended quartz. The whole frequency tripler circuit is optimized by harmonic balance analysis simulator of ADS. The measured multiplication output power reaches 5mW and the efficiency is nearly 3% from 106GHz to 114GHz.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"48 25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128213137","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: 8
A compact and dual-polarized microstrip array antenna for mini base station applications 一种小型双极化微带阵列天线，适用于小型基站
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238115
Bingdou Li, Shiwen Yang, Ming Huang, Z. Nie
{"title":"A compact and dual-polarized microstrip array antenna for mini base station applications","authors":"Bingdou Li, Shiwen Yang, Ming Huang, Z. Nie","doi":"10.1109/MMWCST.2012.6238115","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238115","url":null,"abstract":"The design of a 2×2 compact dual-polarized microstrip array antenna with high isolation and low cross-polarized radiation characteristics for mini base station applications is presented in this paper. The array antenna provides an impedance bandwidth of 7.7% for VSWR <; 1.4, operating around 2.6 GHz. The total thickness of the array antenna is about 0.052λ0 and the array dimension is 160×160 mm2. A gain of higher than 12 dBi is achieved within the bandwidth. By introducing the dual-feed technique and modifying the shape of patches, the isolation between the two polarized ports is higher than 30 dB over the entire bandwidth. The cross-polarization levels in both of the E and H planes are all less than -30 dB.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126985181","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
Predicting dual-mode and dual-link UE BER performance based on its local realistic MIMO antenna 基于局部真实MIMO天线的双模双链路UE BER性能预测
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238150
Yong Jiang, Anming Gao, Hongli Peng, Rong Li, Junfa Mao
{"title":"Predicting dual-mode and dual-link UE BER performance based on its local realistic MIMO antenna","authors":"Yong Jiang, Anming Gao, Hongli Peng, Rong Li, Junfa Mao","doi":"10.1109/MMWCST.2012.6238150","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238150","url":null,"abstract":"A general approach for effectively predicting dual-mode and dual-link user equipment (DMDL-UE) BER performance is presented in this paper based on the UE local realistic Multiple-input-multiple-output (MIMO) antenna. A DMDL-UE simulation system model is proposed using the MIMO antenna, which shows good S-parameters within the GSM and TD-LTE band. By evaluating the system bit error rate (BER) performance, it is concluded that the sensitivity of TD-LTE link will be greatly affected by the local GSM interference, and that the sensitivity loss of TD-LTE receiver can be effectively reduced by improving isolation of the MIMO antenna.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"65 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120918067","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
Maneuvering target detection in over-the-horizon radar based on genetic algorithm 基于遗传算法的超视距雷达机动目标检测
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238146
Dai Wenjuan, Huang Jingfeng, Xu Dingwen, Wang Zixi
{"title":"Maneuvering target detection in over-the-horizon radar based on genetic algorithm","authors":"Dai Wenjuan, Huang Jingfeng, Xu Dingwen, Wang Zixi","doi":"10.1109/MMWCST.2012.6238146","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238146","url":null,"abstract":"In OTHR systems, the signal-to-clutter ratio (SCR) used for moving targets detection is very low. The Doppler frequency maneuvering targets, such as aircraft and missiles, is time-varying and spreading with long integration time (CIT). In this situation, the Fourier transform based target detection and tracking techniques may fail to work well with a long CIT, because there is a trade-off between the CIT length and Doppler resolution. A new method to detect maneuvering weak targets in the OTHR systems is proposed here. Time-frequency distribution techniques have been used to estimate the range of parameters of targets firstly, then, genetic algorithm (GA) is used to estimate the parameters accurately. The significance of time-frequency distribution is to narrow the search range of GA, and this operation can improve the processing efficiency.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114207592","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
A compact lowpass filter with ultra-wide stopband using novel resonance cell 一种紧凑的低通滤波器，具有超宽阻带，采用新型谐振单元
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238163
W. Tang, X. Yang, L. H. Zuo
{"title":"A compact lowpass filter with ultra-wide stopband using novel resonance cell","authors":"W. Tang, X. Yang, L. H. Zuo","doi":"10.1109/MMWCST.2012.6238163","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238163","url":null,"abstract":"A novel compact microstrip resonant cell (CMRC) with wide stopband characteristics to design a low pass filter with wide stopband and high rejection is presented. The designed lowpass filter is implemented by cascading two cells with different dimensions. Compared with a conventional CMRC, this work shows the advantages of smaller size, only 7.3*3.7mm2, and high rejection as well as wider stopband. Measured results of the fabricated prototype show that the insertion loss is less than 1 dB in the whole passband, stopband bandwidth better than -20 dB is obtained from 5.7 to 33 GHz and better than -10 dB is obtained from 5.1 to 40 GHz, which is an great improvement of 154.8% from a conventional CMRC.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126400654","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
CLEAN algorithm based direct-path-interference and multi-path-interference suppression in Bistatic MIMO Radar 基于CLEAN算法的双基地MIMO雷达直接路径干扰和多路径干扰抑制
The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology Pub Date : 2012-04-19 DOI: 10.1109/MMWCST.2012.6238160
X. Duan, Hongming Liu, Jun Li, Zishu He
{"title":"CLEAN algorithm based direct-path-interference and multi-path-interference suppression in Bistatic MIMO Radar","authors":"X. Duan, Hongming Liu, Jun Li, Zishu He","doi":"10.1109/MMWCST.2012.6238160","DOIUrl":"https://doi.org/10.1109/MMWCST.2012.6238160","url":null,"abstract":"Transceiver arrays of Bistatic MIMO Radar are separated in airspace, which transmit orthogonal signals in space, forming a wide, low-gain transmit beam. With the DBF technique, the receiver can form multiple integrated transmit and receive beams. As multiple orthogonal signals are transmitted, direct-path interference and multi-path interference are combination of multiple signals, and meanwhile, considering the correlativity of target signal and interference, the methods such as transmit nulling, sidelobe cancellation and subspace-projection are inapplicable. The method of CLEAN algorithm based direct-path interference and multi-path interference suppression is proposed in this paper with the characters of this radar and the lack of existing methods considered. This method suppresses the direct-path and multi-path interference, highlighting the weak target signal by stripping strong interference signals layer by layer. Simulation results prove the validity of the method.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131574244","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
下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信