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

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A novel stealth Vivaldi antenna 一种新型隐身维瓦尔第天线
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6230233
Teng-Kai Chen, Wenpe Li, Zhihui Yao, Xiaoxiang He, Xin Wang
{"title":"A novel stealth Vivaldi antenna","authors":"Teng-Kai Chen, Wenpe Li, Zhihui Yao, Xiaoxiang He, Xin Wang","doi":"10.1109/ICMMT.2012.6230233","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6230233","url":null,"abstract":"A novel stealth Vivaldi antenna is proposed in this paper that covers the entire X-band from 8 to 12 GHz. Based on the difference of the current distribution on the metal patch when the antenna radiates or scatters, the shape of the patch is modified so that the electromagnetic scattering is significantly decreased in a wide angle range within the entire operating band. Maximally 14dBsm radar cross section (RCS) reduction is achieved with satisfactory radiation performance maintained.","PeriodicalId":421574,"journal":{"name":"2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"59 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":"128364344","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
Hybrid PFDTD-PTDPO method for computing transient far-fields of single reflector 单反射器瞬态远场计算的混合PFDTD-PTDPO方法
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6230360
Zhu Xiangqin, W. Jianguo, Chen Zaigao, Cai Libing, Liang Tiezhu
{"title":"Hybrid PFDTD-PTDPO method for computing transient far-fields of single reflector","authors":"Zhu Xiangqin, W. Jianguo, Chen Zaigao, Cai Libing, Liang Tiezhu","doi":"10.1109/ICMMT.2012.6230360","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6230360","url":null,"abstract":"A hybrid method combining parallelized finite-difference time-domain (PFDTD) method and parallelized time-domain physical optics (PTDPO) method is presented for computing the radiation fields of the large single reflector, which can not be simulated by one time-domain method. Two process groups for parallel computing are firstly set up, one is for PFDTD computing and the other is for PTDPO computing. No magnetic fields should be saved at every timestep when the Kirchhoff's Sufrace Integration Representation (KSIR) is used to computing the magnetic fields on the reflector. The radiation fields of single reflector antenna with dipole source show the results near the axis are agreed well with those by using PFDTD method and the same as those obtained by FDTD-TDPO method. The hybrid method has the ability of simulating large single reflector with hundreds of wavelengths, including the reflector's feed is offset.","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":"128964677","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
Compact printed dipole antenna with integrated wideband balun for UWB application 用于超宽带应用的集成宽带平衡的小型印刷偶极子天线
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6230415
Guang Yang, Q. Chu, Zhihong Tu, Y. Wang
{"title":"Compact printed dipole antenna with integrated wideband balun for UWB application","authors":"Guang Yang, Q. Chu, Zhihong Tu, Y. Wang","doi":"10.1109/ICMMT.2012.6230415","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6230415","url":null,"abstract":"A compact UltrawideBand (UWB) dipole antenna with an integrated wideband balun is presented. The proposed antenna consists of a printed dipole, a wideband slot balun embedded in the ground plane, and an inverted L-shaped microstrip feedline. By using the integrated slot balun, the unbalance-to-balance transformer from the microstrip feedline to the dipole antenna is achieved. This antenna achieves a small size of 16 mm× 28 mm × 0.8 mm based on the substrate having a dielectric constant of 2.55, and operates over the frequency band from 2.9 GHz to 10.7 GHz, with the reflection coefficient <;-10 dB and the relative impedance matching bandwidth of 114.7%. The measured results show the nearly omnidirectional radiation pattern over the UWB band.","PeriodicalId":421574,"journal":{"name":"2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"12 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":"129685070","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
A tunable dual-stop-band filter using spurlines 使用杂散线的可调谐双阻带滤波器
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6229912
Yan-Yi Wang, F. Wei, He Xu, Bei Liu, Xiao-wei Shi
{"title":"A tunable dual-stop-band filter using spurlines","authors":"Yan-Yi Wang, F. Wei, He Xu, Bei Liu, Xiao-wei Shi","doi":"10.1109/ICMMT.2012.6229912","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6229912","url":null,"abstract":"A miniaturized tunable dual-stop-band filter featuring compact size and spurious free passband is introduced in this paper. The two stopbands can be tuned independently. The filter consists of a pair of revised spurlines. By embedding two varactors in the transmission line, a tunable dual-band bandstop filter is implemented. One stopband that has 41% tuning range centered at 2.57 GHz with |S21| better than 10dB, and the other stopband that has 13.3 % tuning range centered at 4.65 GHz with |S21| better than 15dB have been obtained. The absolute 3dB bandwidth of first stopband is less than 515MHz, and the second is less than 930MHz. The predicted results are compared with measured data and good agreement is reported, which verifies the proposed method. This kind of filter behaves similarly to the conventional open-circuited shunt-stub band-stop filters, but is more compact and has less radiation and dispersion, and is less susceptible to the influence of adjacent objects.","PeriodicalId":421574,"journal":{"name":"2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"13 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":"129925924","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: 9
Intrinsic efficiency measurement of low loss waveguide adapter 低损耗波导适配器的固有效率测量
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6230117
C. L. Song, X. Liu, Qian Song
{"title":"Intrinsic efficiency measurement of low loss waveguide adapter","authors":"C. L. Song, X. Liu, Qian Song","doi":"10.1109/ICMMT.2012.6230117","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6230117","url":null,"abstract":"We employ two techniques to measure the intrinsic efficiency of a waveguide adapter used in a U band waveguide power standard. These two methods are based on one-port calibration. The results measured by this two techniques agree within 0.005 for efficiency one.","PeriodicalId":421574,"journal":{"name":"2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"12 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":"130361324","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 0.7–6 GHz low-voltage broadband folded mixer in 0.13-um CMOS 一种0.13 um CMOS的0.7-6 GHz低压宽带折叠混频器
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6229985
Dawei Zhao, F. Huang, Xusheng Tang, Xiaopeng Sun
{"title":"A 0.7–6 GHz low-voltage broadband folded mixer in 0.13-um CMOS","authors":"Dawei Zhao, F. Huang, Xusheng Tang, Xiaopeng Sun","doi":"10.1109/ICMMT.2012.6229985","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6229985","url":null,"abstract":"This paper presents the design and analysis of a low-voltage down-conversion mixer in 0.13μm CMOS for 0.7-6 GHz applications. The proposed mixer is based on folded double-balanced Gilbert cell which is well-known for low voltage, simplicity and well-balanced performances. The folded topology allows the gm-stage and LO stage to have different currents. By setting the bias current in the PMOS switches near zero, the mixer DC offset due to device mismatch is greatly reduced. Capacitors are added parallel with the current generators to achieve the optimal IIP3 performance. Designed in SMIC 0.13-μm process, the mixer achieves a voltage gain (CG) of 5~7dB, a single-sideband noise figure (NF) of 11~13.2dB, and a third-order inter-modulation intercept point (IIP3) of 3.2~5dBm between 0.7~6GHz. The mixer core dissipates 5.8mW under 1.2 V supply.","PeriodicalId":421574,"journal":{"name":"2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"7 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":"124177248","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
Optimal design of wideband radar absorbing structure consisting of resistive meta-surface layers 电阻性元表层组成的宽带雷达吸波结构优化设计
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6230475
S. N. Zhou, Z. B. Wang, Y. Feng
{"title":"Optimal design of wideband radar absorbing structure consisting of resistive meta-surface layers","authors":"S. N. Zhou, Z. B. Wang, Y. Feng","doi":"10.1109/ICMMT.2012.6230475","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6230475","url":null,"abstract":"In this paper we propose an optimal design of ultrawideband (4 ~ 20 GHz) absorbers composed of two resistive meta-surface layers of different square patch arrays. Gradient Descent and Genetic Algorithm are employed to optimize all the parameters through equivalent transmission line circuit model. The circuit parameters are then implemented by a multilayer including two resistive meta-surface of square patch structures. Two types of such absorbing structures, with the total thicknesses close to that of the known theoretical limit, are designed and their performance are verified by full wave simulation.","PeriodicalId":421574,"journal":{"name":"2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"13 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":"121162457","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
A 5.8 GHz CMOS low noise amplifier for electronic toll collection system 一种用于电子收费系统的5.8 GHz CMOS低噪声放大器
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6229963
Siheng Zhu, Chao Guo, Kun Feng, Jingjing Zou, Houjun Sun, X. Lv
{"title":"A 5.8 GHz CMOS low noise amplifier for electronic toll collection system","authors":"Siheng Zhu, Chao Guo, Kun Feng, Jingjing Zou, Houjun Sun, X. Lv","doi":"10.1109/ICMMT.2012.6229963","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6229963","url":null,"abstract":"This paper presents a 5.8 GHz low noise amplifier (LNA) for electronic toll collection system (ETCS). Traditional design strategy of source inductor feedback amplifier (L-CSLNA) ignores the influence of off chip matching, such as print circuit broad (PCB), bonding wire and passive chip parts which greatly affect the performance of LNA at high frequency. In this paper we adopt 3D electromagnetic simulation to analyze the impacts of off chip components to the design of LNA. The proposed LNA has been fabricated in 0.18 μm CMOS process. The measured S11 of the proposed LNA is less than -10 dBm from 5.7 to 5.9 GHz, the minimal noise figure (NF) is 2 dB, the maximal power gain is 12.7 dB and the IIP3 is -4 dBm with 16 mW power dissipation.","PeriodicalId":421574,"journal":{"name":"2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"70 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":"121416633","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
OCDMA-based 60-GHz radio-over-fiber system for next generation wireless access networks 下一代无线接入网的基于ocdma的60 ghz光纤无线电系统
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6230350
Chen Chen, Chongfu Zhang, K. Qiu
{"title":"OCDMA-based 60-GHz radio-over-fiber system for next generation wireless access networks","authors":"Chen Chen, Chongfu Zhang, K. Qiu","doi":"10.1109/ICMMT.2012.6230350","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6230350","url":null,"abstract":"A high secure bidirectional 60-GHz radio-over-fiber (RoF) system is proposed and successfully demonstrated, based on optical code-division multiple access (OCDMA) encoding and decoding techniques. The optical carriers for both downlink and uplink transmissions are simultaneously generated in a lightwave centralized central station (CS), using the optical double sideband (ODSB) modulation of a dual-arm Mach-Zehnder modulator (MZM), so it can make remote base stations (BS) sourceless and colorless. Two-fiber topology is adopted in the scheme and therefore the effect of Rayleigh backscattering (RB) is neglected. We employ super-structured fiber Bragg gratings (SSFBG) as the OCDMA encoders and decoders, in order to obtain a preferable performance of our proposed OCDMA-RoF system.","PeriodicalId":421574,"journal":{"name":"2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"45 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":"121420071","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: 5
DC magnetic field modulated doubly balanced monolithic mixer using magnetic thin film baluns 采用磁性薄膜平衡器的直流磁场调制双平衡单片混合器
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI: 10.1109/ICMMT.2012.6230013
Hui Li, C. Kong, Xiaojian Chen, Weibo Wang, Jianjun Zhou, Cheng Chen
{"title":"DC magnetic field modulated doubly balanced monolithic mixer using magnetic thin film baluns","authors":"Hui Li, C. Kong, Xiaojian Chen, Weibo Wang, Jianjun Zhou, Cheng Chen","doi":"10.1109/ICMMT.2012.6230013","DOIUrl":"https://doi.org/10.1109/ICMMT.2012.6230013","url":null,"abstract":"A novel DC Magnetic Field modulated doubly balanced monolithic mixer consisting of NiFe-SiOx magnetic thin film spiral transformer-baluns is presented first time. The -3dB bandwidth of the mixer from original L/S-band (1.3-3GHz) was modulated to L/C-band (1.4-5.5GHz) while a DC magnetic field was applied. Besides, the conversion loss of the mixer was improved by 1dB decreasion at the same time. The fabrication process of the mixer was fully compatible with standard monolithic microwave integrated circuit (MMIC) process.","PeriodicalId":421574,"journal":{"name":"2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"447 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114015724","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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