德国Jenoptik推出紧凑型医用激光器

近日,德国Jenoptik公司宣布推出新型JenLas D2.mini激光器。这是一款采用二极管泵浦的绿光薄碟片激光器,产品结构紧凑,性能牢固,非常适合于医疗和表演使用。     

Design of Novel Compact Electromagnetic Bandgap Structures with Enhanced Bandwidth

Two kinds of compact electromagnetic band gap （EBG） structures are designed. A two layer compact EBG structure configured with cross spiral shape line inductors and interdigital capacitors is first presented. Because of its significantly enlarged equivalent inductor and capacitance, the period of the lattice is approximately 4.5% of the free space wavelength. By insetting several narrow slits in the ground plane, the bandwidth of the main bandgap is enhanced by nearly 19%. Further effort has been made for designing a three layer compact EBG structure. Simulation results show that its period is reduced by about 26% compared to that of proposed two layer EBG structure, and the bandwidth of the main bandgap is about 3 times as that of the proposed two layer EBG structure. The detailed designs including a two layer compact 3×7 EBG array with and without defect ground plane and the three layer EBG array are given and simulation results are presented.     

产品

西门子推出适合基本应用的Sinamics V20变频器 2012年7月30日,西门子在中国推出一款适合基本应用的新型单机变频器,即SinamicsV20。该变频器由西门子中、德、英三国工程师共同设计研发,并在西门子数控（南京）有限公司生产。该款变频器结构紧凑、坚固耐用、调试迅速、操作简便且经济实用。     

A new compact structure for a high intensity low-energy heavy-ion accelerator

A new compact accelerating structure named Hybrid RFQ is proposed to accelerate a high-intensity low-energy heavy ion beam in HISCL （High Intensive heavy ion SuperConducting Linear accelerator）, which is an injector of HIAF （Heavy Ion Advanced Research Facility）. It is combined by an alternative series of acceleration gaps and RFQ sections. The proposed structure has a high accelerating ability compared with a conventional RFQ and is more compact than traditional DTLs. A Hybrid RFQ is designed to accelerate 238U34＋ from 0.38 MeV/u to 1.33 MeV/u. The operation frequency is described to be 81.25 MHz at CW （continuous wave） mode. The design beam current is 1.0 mA. The results of beam dynamics and RF simulation of the Hybrid RFQ show that the structure has a good performance at the energy range for ion acceleration. The emittance growth is less than 5% in both directions and the RF power is less than 150 kW. In this paper, the results of beam dynamics and RF simulation of the Hybrid RFQ are presented.     

TriQuint半导体公司推出线性EDGE发射模块

射频解决方案领导厂商TriQuint半导体公司近日推出全球最小的线性EDGE发射模块——QUANTUM Tx TQM6M9085。该模块的体积比前代产品小35%,为现今结构紧凑的移动设备节省宝贵的电路板空间。同时,该模块具有功率附加效率为45%     

放眼世界 植根中国

安捷伦在华推出首款完全本土化的测量产品 成都，2006年7月3日讯：安捷伦日前在其成都的合资公司-安捷伦成都测量仪器分部—推出首款完全本土化的测量产品，开始服务中国及国际市场。新一代低成本、结构紧凑的射频信号发生器Agilent N9310A的面世，将加快安捷伦步入低成本测量市场的步伐，帮助资金有限的客户，在确保产品的设计、生产质量的同时，大大降低测试成本，缩短产品上市时间。     

小霸王横空出世 Canon EOS 1000D

佳能EOS1000D的终于在众人的期盼中登台亮相了,这款产品与佳能450 D和400D一样,定位低端市场。外观上,1000D与450D更为接近,结构紧凑圆润,按键位置合理。配置上,1000D拥有千万像素,采用全新的DIGICⅢ     

GRL9001光传输平台

产品概述 GRL9001光传输平台是康特新一代符合国家标准网管的光平台，配有6个通用光模块插槽，光模块可独立选配上下行光收和上下行光发。本产品采用组件化设计、即插即用式工作；结构紧凑、组件配置密度高，配置灵活，并能使用户快速而简便地进行系统配置或系统升级改造，以满足不断扩展和为技术发展提供新业务的需求。     

玩转VS9000免卡机(连载)--硬件打摩篇

VIVAVS9000免卡机整机电路由控制操作板、电源板和电路主板以及相连接的一体化调谐器组成。一体化调谐器采用的是夏普一进一出(LNBIN、LNBOUT)的F7VZ0184型号,它是由IX2360VA为核心的调谐器和由STV0299B及其外围电路组成的解调器封装在一起,构成的一体化高频头,采用卧式安装法,进一步缩小机身的厚度,使得整机尺寸为:256mm(长)×46mm(高)×204mm(深),体积小巧,结构紧凑。控制操作板采用一个红色LED     

基于双直角分束器的反射式静态傅里叶光谱仪光学系统EI北大核心CSCD

基于双直角分束器设计了一种反射式静态傅里叶变换光谱仪光学系统,并搭建了样机。该光谱仪光学系统的分光装置采用双直角分束器,其他光路全部采用反射式结构,有效折叠光路,与透射式静态傅里叶光谱仪相比,系统体积减小一半以上。用汞灯作为静态傅里叶光谱仪光源时,得到了404.7,435.8,546.1,577.0nm的峰值谱线,实验结果很好地复原了汞灯实际光谱;用波长为650nm的激光进行实验,光谱分辨率约为5.93nm,与理论计算结果基本相符。该光学系统具有结构紧凑、体积小、重量轻、抗震性强等诸多优点,可为小型化、便携式静态傅里叶光谱仪器的研制提供技术支持。