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| 1 | Catalytic combustion of VOCs on Pt/CuMnCe and Pt/CeY honeycomb monolithic catalysts显示文摘The metal oxides CuMnCe and CeY washcoats on cordierite were prepared using an impregnation method, and then used as support for the active Pt component to prepare the Pt/CuMnCe and Pt/CeY monolithic catalysts for the deep oxidation of VOCs. In comparison with the Pt/CeY, CuMnCe, and CeY monolithic catalysts, the Pt/CuMnCe monolithic catalyst shows an excellent performance for toluene,ethyl acetate,and n-hexane oxidation and the T_(90%) is low to 216, 200 and 260 ℃,respectively. The active components Pt/PtO and CuMnCe result in a better synergetic interaction, which promote the catalyst reducibility, increase the oxygen mobility, and enhance the adsorption and activation of organic molecules. | Anming Zhu Ying Zhou Yue Wang Qiulian Zhu Huayan Liu Zekai Zhang Hanfeng Lu | 2018 | Journal of Rare Earths2018，36，12： | 17 |
| 2 | Si-Based Anode Materials for Li-Ion Batteries:A Mini Review显示文摘Si has been considered as one of the most attractive anode materials for Li-ion batteries(LIBs) because of its high gravimetric and volumetric capacity. Importantly, it is also abundant, cheap, and environmentally benign. In this review, we summarized the recent progress in developments of Si anode materials. First, the electrochemical reaction and failure are outlined, and then, we summarized various methods for improving the battery performance, including those of nanostructuring, alloying, forming hierarchic structures, and using suitable binders. We hope that this review can be of benefit to more intensive investigation of Si-based anode materials. | Delong Ma Zhanyi Cao Anming Hu | 2014 | Nano-Micro Letters2014，6，4： | 16 |
| 3 | Synthesis, Properties and Potential Applications of Porous Graphene: A Review显示文摘Since the discovery of graphene, many efforts have been done to modify the graphene structure for integrating this novel material to nanoelectronics, fuel cells, energy storage devices and in many other applications. This leads to the production of different types of graphene-based materials, which possess properties different from those of pure graphene. Porous graphene is an example of this type of materials. It can be considered as a graphene sheet with some holes/pores within the atomic plane. Due to its spongy structure, porous graphene can have potential applications as membranes for molecular sieving, energy storage components and in nanoelectronics. In this review, we present the recent progress in the synthesis of porous graphene. The properties and the potential applications of this new material are also discussed. | Paola Russo Anming Hu Giuseppe Compagnini | 2013 | Nano-Micro Letters2013，5，4： | 11 |
| 4 | Effects of short-term low temperatures on photosystem Ⅱ function of samara and leaf of Siberian maple (Acer ginnala) and subsequent recovery显示文摘Samara is the reproductive organ (seed) for many tree species in arid land in northwestern China. It is ecologically important in population development due to its dispersal function. However, information on its photosynthesis and effect of environmental stresses on its photosynthesis is still very limited. In the present study, responses of photosystem II (PSII) activity in samara and leaf of Siberian maple to short-term chilling/freezing and subsequent recovery potential were comparatively investigated by using polyphasic fluorescence test. The samara had more efficient photosynthesis (Fv/Fm and PIABS) and more efficient electron transport (φEo) but lower energy dissipation (DIo/RC) than leaf. Generally, the PSII performance and the electron transport for both samara and leaf were inhibited under low temperature stress, accompanied by an increase of energy dissipation in PSII reaction centers (RCs). PSII of both samara and leaf was not markedly affected by chilling and could acclimate to chilling stress. Short-term freezing could completely inhibit PSII activity in both samara and leaf, indicated by the drop of values of Fv/Fm, PIABS, φEo to zero. PSII functional parameters of short-term dark frozen samara could be largely recovered whereas those of frozen leaf could not be recovered. The higher tolerance of samara to short-term low temperature stress than leaf is of great ecological significance for seed development, population establishment of Siberian maple. | XiangLiang PAN1, DaoYong ZHANG1,2, Xi CHEN1, Li LI1, GuiJin MU1, LanHai LI1, AnMing BAO1, Jing LIU2, HuaiSong ZHU1, WenJuan SONG1, JianYing YANG1, JunYong AI1 1 Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China 2 State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550000, China | 2009 | Journal of Arid Land2009，1，1： | 10 |
| 5 | Laser-Assisted Reduction of Highly Conductive Circuits Based on Copper Nitrate for Flexible Printed Sensors显示文摘Stretchable electronic sensing devices are defining the path toward wearable electronics. High-performance flexible strain sensors attached on clothing or human skin are required for potential applications in the entertainment,health monitoring, and medical care sectors. In this work,conducting copper electrodes were fabricated onpolydimethylsiloxane as sensitive stretchable microsensors by integrating laser direct writing and transfer printing approaches. The copper electrode was reduced from copper salt using laser writing rather than the general approach of printing with pre-synthesized copper or copper oxide nanoparticles. An electrical resistivity of 96 l X cm was achieved on 40-lm-thick Cu electrodes on flexible substrates. The motion sensing functionality successfully demonstrated a high sensitivity and mechanical robustness.This in situ fabrication method leads to a path toward electronic devices on flexible substrates. | Shi Bai Shigang Zhang Weiping Zhou Delong Ma Ying Ma Pooran Joshi Anming Hu | 2017 | Nano-Micro Letters2017，9，4： | 10 |
| 6 | Response of vegetation to temperature and precipitation in Xinjiang during the period of 1998-2009显示文摘In this paper,10-day spatio-temporal response of vegetation to the change of temperature and precipitation in spring,summer,autumn and whole year during the period of 1998―2009 was analyzed based on the data of SPOT VEGETATION-NDVI and 10-day average temperature or precipitation from 54 meteorological stations in Xinjiang.The results show that the response of 10-day NDVI to temperature was more significant than that to precipitation,and the maximal response of vegetation to temperature and precipitation lagged for two 10-day periods.Seasonally,the effect of temperature and precipitation on vegetation NDVI was most marked in autumn,then in spring,and it was not significant in summer.The response of vegetation to 10-day change of meteorological factors was positive with a long affecting duration in spring,and it had a relatively short affecting duration in autumn and summer.Spatially,the 10-day maximal response of NDVI to temperature in northern Xinjiang was higher than that in southern Xinjiang.The correlation between the 10-day NDVI in whole year and the temperature in the 0-8th 10-day period was significantly higher than that between the annual NDVI and the annual temperature at all meteorological stations;the interannual change of NDVI was accordant well with the change of annual precipitation.However,the effect of precipitation within a year on NDVI was not strong.The results indicated that interannual change of temperature was not the dominant factor affecting the change of vegetation NDVI in Xinjiang,but the decrease of annual precipitation was the main factor resulting in the fluctuation of vegetation coverage.Ten-day average temperature was an important factor to promote vegetation growth in Xinjiang within a year,but the effect of precipitation on vegetation growth within a year was not strong. | XiaoMing CAO Xi CHEN AnMing BAO Quan WANG | 2011 | Journal of Arid Land2011，3，2： | 9 |
| 7 | Simulating hydrological responses to climate change using dynamic and statistical downscaling methods: a case study in the Kaidu River Basin, Xinjiang, China显示文摘Climate change may affect water resources by altering various processes in natural ecosystems. Dynamic and statistical downscaling methods are commonly used to assess the impacts of climate change on water resources. Objectively, both methods have their own advantages and disadvantages. In the present study, we assessed the impacts of climate change on water resources during the future periods (2020–2029 and 2040–2049) in the upper reaches of the Kaidu River Basin, Xinjiang, China, and discussed the uncertainties in the research processes by integrating dynamic and statistical downscaling methods (regional climate models (RCMs) and general circulation modes (GCMs)) and utilizing these outputs. The reference period for this study is 1990–1999. The climate change trend is represented by three bias-corrected RCMs (i.e., Hadley Centre Global Environmental Model version 3 regional climate model (HadGEM3-RA), Regional Climate Model version 4 (RegCM4), and Seoul National University Meso-scale Model version 5 (SUN-MM5)) and an ensemble of GCMs on the basis of delta change method under two future scenarios (RCP4.5 and RCP8.5). We applied the hydrological SWAT (Soil and Water Assessment Tool) model which uses the RCMs/GCMs outputs as input to analyze the impacts of climate change on the stream flow and peak flow of the upper reaches of the Kaidu River Basin. The simulation of climate factors under future scenarios indicates that both temperature and precipitation in the study area will increase in the future compared with the reference period, with the largest increase of annual mean temperature and largest percentage increase of mean annual precipitation being of 2.4°C and 38.4%, respectively. Based on the results from bias correction of climate model outputs, we conclude that the accuracy of RCM (regional climate model) simulation is much better for temperature than for precipitation. The percentage increase in precipitation simulated by the three RCMs is generally higher than that simulated by the ensemble of GCMs. As for the changes in seasonal precipitation, RCMs exhibit a large percentage increase in seasonal precipitation in the wet season, while the ensemble of GCMs shows a large percentage increase in the dry season. Most of the hydrological simulations indicate that the total stream flow will decrease in the future due to the increase of evaporation, and the maximum percentage decrease can reach up to 22.3%. The possibility of peak flow increasing in the future is expected to higher than 99%. These results indicate that less water is likely to be available in the upper reaches of the Kaidu River Basin in the future, and that the temporal distribution of flow may become more concentrated. | BA Wulong DU Pengfei LIU Tie BAO Anming LUO Min Mujtaba HASSAN QIN Chengxin | 2018 | Journal of Arid Land2018，10，6： | 8 |
| 8 | A simulation-based two-stage interval-stochastic programming model for water resources management in Kaidu-Konqi watershed,China显示文摘This study presented a simulation-based two-stage interval-stochastic programming(STIP) model to support water resources management in the Kaidu-Konqi watershed in Northwest China.The modeling system coupled a distributed hydrological model with an interval two-stage stochastic programing(ITSP).The distributed hydrological model was used for establishing a rainfall-runoff forecast system,while random parameters were provided by the statistical analysis of simulation outcomes.The developed STIP model was applied to a real case of water resources management planning in Kaidu-Konqi watershed,where three scenarios with different water resources management policies were analyzed.The results indicated that water shortage mainly occurred in agriculture,ecology and forestry sectors.In comparison,the water demand from municipality,industry and stockbreeding sectors can be satisfied due to their lower consumptions and higher economic values.Different policies for ecological water allocation can result in varied system benefits,and can help to identify desired water allocation plans with a maximum economic benefit and a minimum risk of system disruption under uncertainty. | Yue HUANG Xi CHEN YongPing LI AnMing BAO YongGang MA | 2012 | Journal of Arid Land2012，4，4： | 6 |
| 9 | Probing the hydration of composite cement pastes containing fly ash and silica fume by proton NMR spin-lattice relaxation显示文摘Proton NMR spin-lattice relaxation (T1) was used as a prober for observing the hydration process of composite cement pastes blending fly ash and silica fume during the early age.The distribution at initial time,evolution curves and signals intensity of T1 were shown in this paper.Results demonstrate that the T1 distribution curves at initial time exhibit two peaks,which are regarded as two different water phases in the pastes.The evolution curves of T1 are in good agreement with the hydration process of composite pastes and could be roughly divided into four stages:initial period,dormant period,acceleration period and steady period.The hydration mechanism for each stage was discussed.The hydration of the composite cement pastes was retarded by the addition of fly ash and silica fume when compared to that of pure cement.However,the hydration degree of the cement in the blends was promoted. | SHE AnMing & YAO Wu Key Laboratory of Advanced Civil Engineering Materials (Tongji University),Ministry of Education,Shanghai 200092,China | 2010 | Science China(Technological Sciences)2010，53，6： | 6 |
| 10 | Simulation of groundwater table dynamics based on Feflow in the Minqin Basin,China显示文摘As groundwater table declination is an important factor resulting in degradation of eco-environment in the Minqin Basin,China,it is significant to investigate and understand the groundwater table dynamics in this area. According to the physical and geographical conditions of the Minqin Basin,a hydrogeological conceptual model and a mathematical model were established,and the mathematical model was figured out by using Finite Element subsurface Flow system(Feflow).Accurate hydrogeological parameters were acquired,and the spatio-temporal distribution dynamics of groundwater table for 1983–2001 were also simulated.The model performed well with a correlation coefficient of 0.977 and a mean error of 0.9768 m.The inflow and outflow of the groundwater system were predicted by time series analysis,and the groundwater table dynamics for 2011 were further acquired.Generally the groundwater table in the Minqin Basin would continue to decline.The groundwater table would decline during spring and summer irrigation,while it would rise during autumn-winter irrigation.The groundwater depression cones would expand with the increase of center depths.Therefore,regulatory measures should be taken to prevent the declination of groundwater table and improve the eco-environment of this area. | Lan MA XiaoMei WEI AnMing BAO ShiFei WANG | 2012 | Journal of Arid Land2012，4，2： | 5 |
| 11 | Maternal Eomesodermin regulates zygotic nodal gene expression for mesendoderm induction in zebrafish embryos显示文摘在在 midblastula 转变(MBT ) 的 zygotic 染色体激活前的动物胚胎的开发是实质上 supportedby 导出鸡蛋的母亲的产品。节的蛋白质在 MBT 以后是为中层和内胚叶正式就职的关键信号。Itremains 不清楚母亲的因素它在 zebrafish 胞胚的 ventrolateral blastodermal 边缘激活节的基因的 zygotic 表示。在这研究,我们显示出母亲的 Eomesodermina (Eomesa ) 的那损失,一个 T 盒子抄写因素,损害节的基因 ndr1 和 ndr2 以及 mesodermal 和 endodermal 标记的 zygotic 表示,在 mesendoderm 显示参与感应。母亲的 Eomesa 是为抄写因素基因 mxtx2 的及时 zygotic 表示的 alsorequired,节的基因表示的一个管理者。Eomesa 直接在激活他们的抄写的 ndr1, ndr2,和 mxtx2 的倡导者或 enhancer 绑在 Eomes 有约束力的地点。而且,节的基因也是的人和老鼠由 Eomes 调整了。进鼠科的胚胎的干细胞的 zebrafish eomesa 的 Transfection 与内长的节的表示的经常的高水平支持 mesendodermal 区别,建议 Eomes 的一个保存函数。一起拿,我们的调查结果在在脊椎动物胚胎调整节的基因表示和 mesendoderm 正式就职揭示母亲的 T-boxtranscription 因素的一个保存角色。 | Pengfei Xu Gaoyang Zhu Yixia Wang Jiawei Sun Xingfeng Liu Ye-Guang Chen Anming Meng | 2014 | Journal of Molecular Cell Biology2014，8，4： | 5 |
| 12 | A 2-bp insertion(c.6768insCC) in MC1R causes recessive white coat color in Bama miniature pigs显示文摘Coat color is an important characteristic of various breeds of domestic animal species.Variation in farm animal coat color is of considerable interest for concealment,communication and protection against solar radiation(Slominski et al.,2004).It also plays an important role in the regulation of physiological processes(Miyagi and Terai,2013).Bama miniature pigs are a native breed | Qitao Jia Chunwei Cao Hai Tang Ying Zhang Qiantao Zheng Xiao Wang Rui Zhang Xianlong Wang Ailing Luo Hong Wei Anming Meng Qi Zhou Hongmei Wang Jianguo Zhao | 2017 | Journal of Genetics and Genomics2017，44，4： | 5 |
| 13 | Measuring cotton water status using water-related vegetation indices at leaf and canopy levels显示文摘Drought is one of the major environmental threats in the world. In recent years, the damage from droughts to the environment and economies of some countries has been extensive, and drought monitoring has caused widespread concerns. Remote sensing has a proven ability to provide spatial and temporal measurements of surface properties, and it offers an opportunity for the quantitative assessment of drought indicators such as the vegetation water content at different levels. In this study, sites of cotton field in Shihezi, Xinjiang, Northwest China were sampled. Four classical water content parameters, namely the leaf equivalent water thickness (EWT leaf ), the fuel moisture content (FMC), the canopy equivalent water thickness (EWT canopy ) and vegetation water content (VWC) were evaluated against seven widely-used water-related vegetation indices, namely the NDII (normalized difference infrared index), NDWI 2130 (normalized difference water index), NDVI (normalized difference vegetation index), MSI (moisture stress index), SRWI (simple ratio water index), NDWI 1240 (normalized difference water index) and WI (water index), respectively. The results proved that the relationships between the water-related vegetation indices and EWT leaf were much better than that with FMC, and the relationships between vegetation indices and EWT canopy were better than that with VWC. Furthermore, comparing the significance of all seven water-related vegetation in- dices, WI and NDII proved to be the best candidates for EWT detecting at leaf and canopy levels, with R 2 of 0.262 and 0.306 for EWT leaf-WI and EWT canopy -NDII linear models, respectively. Besides, the prediction power of linear regression technique (LR) and artificial neural network (ANN) were compared using calibration and validation dataset, respectively. The results indicated that the performance of ANN as a predictive tool for water status measuring was as good as LR. The study should further our understanding of the relationships between water-related vegetation indices and water parameters. | QiuXiang YI AnMing BAO Yi LUO Jin ZHAO | 2012 | Journal of Arid Land2012，4，3： | 4 |
| 14 | Estimation of the rational water area for controlling wind erosion in the dried-up basin of the Ebinur Lake and its effect detection显示文摘埃比纳·莱克区域被描述为“一个格林迷宫”在“ Xinjiang MapRecords:河的记录“然而,在 1910 出版了在这个区域的生态学和环境严重由于人的活动的影响被堕落了在期间最近 40 年。渴起来,有 107.4 km^2 的一个区域的湖盆在它的西北的部分形成,是没有植被,盖住 byunconsolidated 淤泥沉积物,并且在北方 Xinjiang 成为了灰尘天气的主要灰尘来源之一,并且有 4.8x10 ~ 6t 的年度数量的灰尘被大风从有 164 天的 Alataw 山脉差距从这个区域吹一年里的发生的大风。为在弄干起来的湖盆在湖区域和有效地控制的风侵蚀改进生态学的埃比纳·莱克的合理的水区域和流入在在弄干起来的湖盆分析在沉积物的小粒的作文之间的当前的生态的问题和关系以后用水平衡方程被估计并且灰尘天气,和最近的年里的生态的效果被监视。为在弄干起来的湖盆在湖区域和有效地控制的风侵蚀改进生态学的 theEbinur 湖的水区域应该至少是 800 km^2,这被考虑,并且湖应该在 7.92x10 ~ 上的再装的表面流量和地下水的年度体积 8 m^3。 | BAO Anming MU Guijin ZHANG Yi FENG Xianwei CHANG Cun YIN Xiaojun | 2006 | Chinese Science Bulletin2006，51，A01： | 4 |
| 15 | Ultra-Short Pulsed Laser Manufacturing and Surface Processing of Microdevices显示文摘Ultra-short laser pulses possess many advantages for materials processing.Ultrafast laser has a significantly low thermal effect on the areas surrounding the focal point;therefore,it is a promising tool for micro-and submicro-sized precision processing.In addition,the nonlinear multiphoton absorption phenomenon of focused ultra-short pulses provides a promising method for the fabrication of various structures on transparent material,such as glass and transparent polymers.A laser direct writing process was applied in the fabrication of high-performance three-dimensional(3D)structured multilayer microsupercapacitors(MSCs)on polymer substrates exhibiting a peak specific capacitance of 42.6 mF·cm^-2 at a current density of 0.1 mA·cm^-12.Furthermore,a flexible smart sensor array on a polymer substrate was fabricated for multi-flavor detection.Different surface treatments such as gold plating,reducedgraphene oxide(rGO)coating,and polyaniline(PANI)coating were accomplished for different measurement units.By applying principal component analysis(PCA),this sensing system showed a promising result for flavor detection.In addition,two-dimensional(2D)periodic metal nanostructures inside 3D glass microfluidic channels were developed by all-femtosecond-laser processing for real-time surfaceenhanced Raman spectroscopy(SERS).The processing mechanisms included laser ablation,laser reduction,and laser-induced surface nano-engineering.These works demonstrate the attractive potential of ultra-short pulsed laser for surface precision manufacturing. | Yongchao Yu Shi Bai Shutong Wang Anming Hu | 2018 | Engineering2018，4，6： | 4 |
| 16 | Reservoir accumulation conditions and key exploration&development technologies for Keshen gas field in Tarim Basin显示文摘The Keshen gas field is located in the central part of Kuqa foreland thrust belt in Tarim Basin,and is another large gas field discovered in Kuqa depression after Kela 2 gas field.Since the breakthrough in 2008,a number of large and medium scale gas reservoirs including Keshen 2,Keshen 5 and Keshen 8 have been discovered,that are characterized by ultra depth,ultra-high pressure,ultra-low porosity,ultra-low permeability,high temperature and high pressure.With natural gas geological reserves of nearly trillion cubic meters and production capacity of nearly 5.5 billion cubic meters,the Keshen gas field is the main natural gas producing area in Tarim Oilfield.The Keshen gas field is located in a series of thrusting imbrication structures in the Kelasu structural belt of Kuqa foreland thrust belt.The salt roof structure,plastic rheology of salt beds and pre-salt faulted anticlinal structure constitute the large wedge-shaped thrust body.The thick delta sandstone of the Cretaceous Bashijike Formation is widely distributed,and it forms the superior reservoir-caprock combination with overlying Paleogene thick gypsum-salt bed.The deep Jurassic-Triassic oil and gas migrate vertically along fault system formed in Late Himalaya,break through the thick Cretaceous mudstone and move laterally along the fracture system of the pre-salt reservoirs,to form anticline and fault anticline high pressure reservoir groups.Through near ten years of studies,the three-dimensional seismic acquisition and processing technology for complex mountainous areas,extrusion salt-related structural modeling technology and fractured low-porosity sandstone reservoir evaluation technology have been established,which lay a foundation for realization of oil and gas exploration objectives.Logging acquisition and evaluation technology for high temperature,high pressure,ultra-deep and low-porosity sandstone gas reservoirs,and efficient development technology for fractured tight sandstone gas reservoirs have been developed,which provide a technical support for efficient exploration&development and rapid production of the Keshen gas field. | Haijun Yang Yong Li Yangang Tang Ganglin Lei Xiongwei Sun Peng Zhou Lu Zhou Anming Xu Jingjie Tang Wenhui Zhu Jiangwei Shang Weili Chen Mei Li | 2019 | Petroleum Research2019，4，4： | 3 |
| 17 | Joining of Individual Silver Nanowires via Electrical Current显示文摘A procedure for joining polyol-synthesized silver nanowires in air using current-induced Joule heat welding is reported. Using a common probe station and photolithographically patterned gold electrodes, the welding process is completed using a common semiconductor analyzer. A unique two-step procedure eliminates the dielectric barrier at the point of contact without damaging the nanowires away from the junction. This procedure is designed for metal–metal contacts where a strong dielectric intermediate layer might exist, which can occur with metals prone to oxidation or corrosion in air, or as a result of the electrode deposition process. Ohmic connections are also established in cases where there is an initial gap between two nanowires. | Arash Vafaei Anming Hu Irene A.Goldthorpe | 2014 | Nano-Micro Letters2014，6，4： | 3 |
| 18 | Palladium Nanoparticles Loaded on Carbon Modified TiO_2 Nanobelts for Enhanced Methanol Electrooxidation显示文摘Carbon modified TiO_2 nanobelts(TiO_2-C) were synthesized using a hydrothermal growth method,as a support material for palladium(Pd) nanoparticles(Pd/TiO_2-C) to improve the electrocatalytic performance for methanol electrooxidation by comparison to Pd nanoparticles on bare TiO_2 nanobelts(Pd/TiO_2)and activated carbon(Pd/AC). Cyclic voltammetry characterization was conducted with respect to saturated calomel electrode(SCE) in an alkaline methanol solution, and the results indicate that the specific activity of Pd/TiO_2-C is 2.2 times that of Pd/AC and 1.5 times that of Pd/TiO_2. Chronoamperometry results revealed that the TiO_2-C support was comparable in stability to activated carbon, but possesses an enhanced current density for methanol oxidation at a potential of -0.2 V vs. SCE. The current study demonstrates the potential of Pd nanoparticle loaded on hierarchical TiO_2-C nanobelts for electrocatalytic applications such as fuel cells and batteries. | Robert Liang Anming Hu John Persic Y.Norman Zhou | 2013 | Nano-Micro Letters2013，5，3： | 2 |
| 19 | Construction of an integrative linkage map and QTL mapping of grain yield-related traits using three related wheat RIL populations显示文摘 | Fa Cui Chunhua Zhao Anming Ding Jun Li Lin Wang Xingfeng Li Yinguang Bao Junming Li Honggang Wang | 2014 | Theoretical and Applied Genetics2014，，3： | 2 |
| 20 | AlN MEMS filters with extremely high bandwidth widening capability显示文摘This paper presents radio frequency(RF)microelectromechanical system(MEMS)filters with extremely high bandwidth widening capability.The proposed filtering topologies include hybrid configurations consisting of piezoelectric MEMS resonators and surface-mounted lumped elements.The MEMS resonators set the center frequency and provide electromechanical coupling to construct the filters,while the lumped-element-based matching networks help widen the bandwidth(BW)and enhance the out-of-band rejection.Aluminum nitride(AlN)S0 Lamb wave resonators are then applied to the proposed filtering topologies.AlN S0 first-and second-order wideband filters are studied and have shown prominent performance.Finally,the AlN S0 first-order wideband filter is experimentally implemented and characterized.The demonstrated first-order filter shows a large fractional bandwidth(FBW)of 5.6%(achieved with a resonator coupling of 0.94%)and a low insertion loss(IL)of 1.84 dB.The extracted bandwidth widening factor(BWF)is 6,which is approximately 12 times higher than those of the current ladder or lattice filtering topologies.This impressive bandwidth widening capability holds great potential for satisfying the stringent BW requirements of bands n77,n78,and n79 of 5G new radio(NR)and will overcome an outstanding technology hurdle in placing 5G NR into the marketplace. | Anming Gao Kangfu Liu Junrui Liang Tao Wu | 2020 | Microsystems & Nanoengineering2020，6，1： | 2 |
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