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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
长春光学精密机械与物... [2]
物理研究所 [1]
过程工程研究所 [1]
新疆天文台 [1]
近代物理研究所 [1]
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OAI收割 [6]
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会议论文 [3]
期刊论文 [3]
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2017 [1]
2010 [1]
2008 [1]
2005 [1]
2004 [2]
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Two-layer miniaturized-element metasurface for broadband RCS reduction
会议论文
OAI收割
Kaohsiung, Taiwan, JUL 26-29, 2016
作者:
Long, Mao
;
Jiang, Wen
;
Gong, Shuxi
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收藏
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浏览/下载:34/0
  |  
提交时间:2017/07/04
Radar Cross Section
Antennas
Frequency Selective Surfaces
Microstrip Antennas
Microwave Antennas
Radar
Resistors
Slot Antennas
Design of high-speed low-noise pre-amplifier for CCD camera (EI CONFERENCE)
会议论文
OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, April 26, 2010 - April 29, 2010, Dalian, China
作者:
Zhang S.
收藏
  |  
浏览/下载:31/0
  |  
提交时间:2013/03/25
Pre-amplifier circuit is critical for the noise performance of the high speed CCD camera. Its main functions are amplification and impedance transform. The high speed and low noise pre-amplifier of CCD camera is discussed and designed in this paper. The high speed and low noise operational amplifier OPA842 is adopted as the main part. The gain-set resistors for the amplifier are designed optimally. The different precision gain-set resistors are swept using Monte Carlo method. CCD video signal which has high DC offset voltage is AC coupled to the amplifier. The output signal of the amplifier is source terminated using 50 ohms matching resistor so as to transmit the video signal through coaxial cable. When the circuit works in high speed
the PCB will have important effect to circuit performance and can even cause the amplifier unstable due to the parasitic problem of PCB. So the parasitic model of the PCB is established and the PCB layout design issues are also presented. The design result shows that the pre-amplifier can be used in the camera whose pixel rate could be up to 40 MHz and its input referred noise density is about 3 nV/Hz 1/2. 2010 Copyright SPIE - The International Society for Optical Engineering.
High precision high voltage divider and its application to electron beam ion traps
期刊论文
OAI收割
REVIEW OF SCIENTIFIC INSTRUMENTS, 2008, 卷号: 79, 页码: 7
作者:
Chen, W. D.
;
Xiao, J.
;
Shen, Y.
;
Fu, Y. Q.
;
Meng, F. C.
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收藏
  |  
浏览/下载:25/0
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提交时间:2018/05/31
capacitors
electron sources
ion recombination
particle traps
resistors
space charge
voltage dividers
xenon
The influence investigation of laser cutting path on the resistance of chip resistors (EI CONFERENCE)
会议论文
OAI收割
Lasers in Material Processing and Manufacturing II, November 10, 2004 - November 12, 2004, Beijing, China
作者:
Wang Z.
;
Wang Z.
收藏
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浏览/下载:18/0
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提交时间:2013/03/25
Laser trimming adjusts the resistance of chip resistors accurately. The laser-cutting path that is vertical to the current flow is called transverse cutting. It increases the resistance quickly. The laser-cutting path that is parallel to the current flow is called ordinate cutting. It increases the resistance slowly. Using numerical results of resistance-calculation formula
the influence of transverse cutting on the resistance is analyzed. With resistor-subsection method
the relationship of resistance and ordinate cutting is studied. And quantitative formulae of them are given. The conclusions can provide some control strategies to improve the trimming precision and trimming efficiency.
Microstructure of varistors prepared with zinc oxide nanoparticles coated with Bi2O3
期刊论文
OAI收割
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2004, 卷号: 87, 期号: 4, 页码: 736-738
作者:
Yuan, FL
;
Ryu, HJ
收藏
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浏览/下载:25/0
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提交时间:2013/11/05
sintered zno
zno-bi2o3 ceramics
grain-growth
resistors
powders
phases
Do intradot electron-electron interactions induce dephasing?
期刊论文
OAI收割
PHYSICAL REVIEW LETTERS, 2004, 卷号: 93, 期号: 7
Jiang, ZT
;
Sun, QF
;
Xie, XC
;
Wang, YP
收藏
  |  
浏览/下载:34/0
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提交时间:2013/09/17
AHARONOV-BOHM OSCILLATIONS
QUANTUM-DOT
PHASE
COHERENCE
SYSTEMS
RING
TRANSMISSION
CONDUCTANCE
TRANSPORT
RESISTORS