Location: Home > Radio Electronics >
-
The System Design of the Electrical Property Measurement for Non-crystal Material
Non-crystal material shows obvious electric,magnetic and other properties in the crystallization process,and these properties are the sensitive capability index to denote organizational structure of nucleus.Accordance to this identity,if we....
-
Further Investigation of the Oxidation Properties of Silicon Microchannels
The development of the MEMS technology promotes the development of more effective and more miniaturized Micro Channel. The Micro Channel has wide application perspective due to its fine performance and special structure. Thanks to the effor....
-
Numerical Calculation of the Fermi Energy in Single-Doped and Co-doped Semiconductors
Fermi level is a very important physical parameter in material science. The energy level below E F is filled with electrons, but there is no electron to fill above the energy of E F at absolute zero. Under certain temperature, the statistic....
-
The Application of LCOS Projection Display Based on the LED Lighting Design
LED as the projector light source is up to the minute to the whole world, and LCOS is a promising technology for using in micro display by bring high resolution, high brightness and low cost to customer. This project will propose the high b....
-
Research on Multi Tau Correlator
Photon correlation technology, based on photon statistics, is an interdisciplinary science. As the main method for nano particle size distribution testing, photon correlation technology has attracted wide spread attention. Photon correlator....
-
Research of Registration Algorithm in Three-Dimension Optical Imaging System
Registration of multiple range images is always an important research field in optical three dimension (3D) profilometry because it is the essential for complex objects modeling and computer aided design (CAD). In this dissertation, the ori....
-
Study the Modulator Approaches of Work Function of Semiconductor Material with Nanostructure by Built
This thesis started with semiconductor materials and the energy band structure , and based on the meso-photoelectric effect, which is the extended effect mechanism of meso-piezoresistance, we analyzed the producing mechanism of built-in ele....
-
Research on the Etching of CVD Diamond Films Using DC Glow Oxygen Plasma
Chemical vapor deposition (CVD) diamond film has many excellent properties and numerous potential applications in machine, microelectronics, optics and military industry. Generally, CVD diamond films were polycrystalline wafers which have v....
-
The Sdudy of Synthesizing Nonuniformly Coupled Transmission Lines
communication systems, such as satellite broadcasting, mobile communication system and optic system. With the development of broadband Monolithic Microwave Integrated Circuits and especially the application of System-on-Chip, broadband coup....
-
The Scattering Problem on a Crack with Mixed Boundary Condition
In this paper , we consider the scattering of an electromagnetic time-harmonic plane wave by an infinite cylindrical conductor.If the conductor is an open arc in R~2,we can consider the problem of scattering by an open arc in R~2.We assume....
-
The EMC Analyzing and Optimizing Based on the PCB Design
Electromagnetic Compatibility (EMC) is a kind of comprehensive science. A lot ofdomains are involved in, such as the theory of electromagnetism, measurement ofelectromagnetism, electrotechnics, electronics, signal analysis, cybernation, mec....
-
The Design of the Key Modules of 14-bit 80MSPS Pipelined A/D Convertors
System-on-a-chip(SOC) requires the integration of analog circuits and digital circuits on a single chip. The technology compilable, performance optimized A/D converter (ADC) is an very important block as the bridge of the analog world to th....
-
The Study on Infrared Thermal Wave Detection Thchnology for Inner Defects in Casting Product
The non-destructive infrared thermal wave technique is a rapidly developing method for non-destructive testing because it is a direct viewing,real-time,mobile,tele and large-area testing.It transfers the infrared thermal wave of the object....
-
Development and Study on the Infrared Array Detection Platform
The technology of infrared thermal imaging detection is a new method of the non-destructive testing with the unique advantages such as no-touch, speediness, accuracy and intuitiveness. Based on the interior relationship among the infrared r....
-
Design and Implementation of Field Emission Test System
As a flatten technology of traditional color television (kinescope), Field Emission Display has been attached much importance at home and abroad, and has great got progress. Field Electron Emission is called Field Emission for short. It....
-
The Characteristic of Field Emission from Carbon Nanotubes after Electrochemistry Treatment
Flat panel display represents the developing direction of display technology. FED (field emission display) is the flatten CRT (Cathode-Ray Tube). And FED is a hot research in home and abroad. The key technology of FED is the cold cathode te....
-
Design and Implementation of a High-speed High-resolution Sample-and-hold Circuit
Modern communication systems are pushing the analog-to-digital converters (ADCs) toward high sampling rate,high resolution,high spurious-free dynamic range (SFDR) and low power.Because of outstanding performance of the pipelined ADCs they a....
-
FPGA Implementation of Digital Monopulse Tracking Technology
With the development of missile, rocket, statellite and astronavigation technology, the more excellent performance is demand on speed, accuracy, range and anti-interference ability of tracking radar. The conical scanning antenna system usin....
-
Thermoelectric β-FeSi_2 Prepared by Self-propagating High Temperature Reaction Synthesis and Anneali
For energy and photoelectric conversion,β-FeSi_2 is a well known new material.This disilicide is non-poisonous,highly resistant against oxidation.Raw material source is abundant and the price is very cheap,better absorbing ability for infr....
-
The Research and Detection of MEMS Sensor Based on PHEMT Electromechanical Coupling Effect
At present, research on the electromechanical coupling effect of the FET and the M(N)EMS sensor whose sensitivity unit is FET has aroused the researchers....
-
PCB Defect Inspection and Marking Based on X-ray Image
Aimed at the special requests for PCB defects test in X-ray image, the paper studies themain techniques in the inspection and marking process.In the industry defect detection,the defects, such as BGA joint short-circuit，missing theball and....
-
DFM Based Research and Test Chip Design
As the integrate circuit (IC) comes into very deep Sub-micron era, some new technology have used in semiconductor manufacture process, such as Sub-wavelength Lithography, copper electroplating, chemical mechanical polishing and so on. Altho....
-
Research on Lead Free Soldering for Surface Mount Technology
On the purpose of environment protection,two legislations-WEEE(Waste of Electrical and Electronic Equipment) and RoHS(Restriction of The Use of Certain Hazardous Substances in Electrical and Electronic Equipment) in Euro has been set up rec....
-
Theoretical Reserch on Micro Flat Heat Pipe with Silicon on Glass Structure
Theoretical analysis and numerical simulation of SOG structure micro flat heat pipe are presented in this paper. Micro heat pipes have very high heat conductivity by the phase changes of its working fluid without needs for extra power. For....
-
Existence of Solutions in Nonlinear Photonic Lattice Model
In the field of nonlinear photonic lattice, Physical scientists use optical induction,the interference of two or more plane waves in a photosensitive material , to create a 2D photonic lattice in which the solitons form. On this two-dimensi....
-
Research on the Novel THz Waveguide
Terahertz electromagnetic waves have broad application prospects in ultrafast process detection, materials characterization, environmental monitoring, object imaging, medical diagnostics, high-speed optoelectronic devices and broadband mobi....
-
Research of Thulium Doped Fiber Amplifier
The demand of the S-band optical amplification is rapidly increasing with the development of optical communication technology,particularly the rapid development of WDM/DWDM.The energy structure in Tm~(3+)exist the transition which can meet....
-
Research on Sampled Fiber Grating Based Tunable Narrow Band Filters
Tunable narrow-band filters have important potential applications in optical communication and optical sensing systems.Especially,fiber grating based tunable narrow-band filters can find vary important applications in tunable narrow linewid....
-
Fundamental Research of the Coupling System Composed of the Tapered Fiber and Micro-toroids on the Ba
These years, optical micro-cavities (micro-spheres, micro-pillars, micro-disks, micro- toroids) have excellence nonlinear optics and quantum characteristics owning towhispering gallery mode, making them very promising in cavity quantum elec....
-
Theoretical Study of the SBS Effect in BOTDR System and Its Sensing Application
The stimulated Brillouin scattering (SBS) effect in optical fiber is studied. The mechanism of SBS effect occurred in a BOTDR system and the application prospect of SBS are elaborated in this thesis. When the extinction ratio of an electro-....