This integrated circuit stores 256 analog voltage levels in high density, non-volatile memory with /spl sim/7.5m V resolution per level. By contrast, the multilevel storage capacity of a typical digital is 4-level cell. The operates over range 2.5 to 5.5 V. Previous implementation use 5.0 supply for sim/12 mV equivalent level 128 k EEPROM.

A modular Gaussian Beam (GB) analysis method is proposed in this letter. The consists of frame-based Gabor transformation, GB reflection, and a novel 3-D diffraction technique that was developed to handle the scattering from reflector edge. This gracefully extends Zogbi's solution into practical scenarios via coordinate transformation. can analyze not only normal quadric surfaces but also shaped reflectors. Also, treatment has been introduced make capable analyzing multielement systems....

Terahertz wave has recently become a promising technology in detection and tracking of space targets, such as missiles debris, where higher performance are required. In this paper, the advantages terahertz radar applied targets firstly exploited over microwave-band radar. Although simulation results micro-Doppler effect SAR imaging have shown target detections, narrow beam-width also limits application searching vast area. This disadvantage, however, can be overcome by netting technology,...

We demonstrate theoretically that an optical one-way transmission device can be constructed by inserting epsilon-near-zero (ENZ) prism into a metal slit. Similarly to the junction in electron diode, oblique surface of ENZ is key factor block light striking on it and allows leaving from it. The performance shown numerical simulation based finite-difference time-domain technique.

Photonic Ink (P‐Ink) technology comprises an active photonic crystal that reflects a band of color can be tuned by controlling the applied current or voltage. All individual spectral colors in visible range reflected single P‐Ink material. This provides opportunity to create wider primary than conventional RGB system, given same numbers pixels for mixing.

This paper presents a wire grid polarizer (WGP) working at the frequency ranges between 1 GHz to 500 GHz. The WGP is extensively used in polarization sensitive elements for separating different polarized signals same channel. spacing pitch-to-width ratio should be chosen seriously lower cross levels double polarizers. influences single and layers are also discussed simultaneously. layer simulation results of reflectance transmittance coefficients more than 0.96 directions, which has been...

Under the background of construction Guangdong-Hong Kong-Macao Greater Bay Area, demand for applied translation talents has increased significantly, while contradiction between supply and gradually become prominent in era AI. Based

In this paper, the explosion accident of a 220kV current transformer in substation is studied.It uses method scene investigation and test to analyses based on principle characteristics transformer.Through analysis, paper holds that reducing main insulation electrical strength caused by Long-term high harmonic voltage breakdown flicker impact are causes accident.And it also proposes variety management methods technical measures avoid kind accident.This provides reference for analysis same...

Get PDF Email Share with Facebook Tweet This Post on reddit LinkedIn Add to CiteULike Mendeley BibSonomy Citation Copy Text Min Xiao, Hai Wang, and David Goorskey, "Nonlinear Optics: All-Optical Switching in a Coherent Atomic Medium," Optics & Photonics News 13(12), 33-33 (2002) Export BibTex Endnote (RIS) HTML Plain alert Save article

A design method of a tanh profiled corrugated horn coupling to the fundamental Gaussian beam mode with low sidelobe levels and symmetry radiation pattern is presented working at Terahertz(THz) frequency. The calculation slot depth feedhorn has variable-pitch-to-width-slot converter in order produce HE <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">11</sub> hybrid mode, whilst increasing linear phase stability section reaches purpose coincidence...

A tri-reflector Compact Antenna Test Range (CATR) system which operates at 300GHz is modeled and verified in this work. An efficient Gaussian Beam (GB) analysis method based on point matching expansion technique proposed to evaluate the predicted quiet zone performance of CATR system. Experimental result shows that amplitude ripple within less than 1.1dB while phase vibration no more 20 degrees 300GHz.

ABSTRACT Numerical and measured results of the quiet zone performance a trireflector compact antenna test range (CATR) system in terahertz band are presented this letter. A modular Gaussian beam (GB) analysis method, which consists frame‐based Gabor transformation, GB reflection 3D diffraction technique, was implemented to evaluate performance. Compared geometrical optics method is valid predicting field distribution caustic region. Moreover, simulation CATR demonstrated superior efficiency...

This paper presents an approach for the improvement of transmittance in capacitive grid polarizer with dielectric substrates by introducing antireflection(AR) coating. The using Cu material is printed substrate PTFE. According to different position relations between and substrate, four structures AR coating are verified reflection coefficient TE wave transmission TM working at frequency range from 1GHz 500GHz. Comparing structures, periodic strips back have much better performance, where...

Data mining is a tool for knowledge discovery. Recent discussions in this field state that data does not contribute to business large scale. This article discusses the important role of insider centered development through making relevant business.

A modular and efficient Gaussian beam (GB) analysis method, incorporating frame-based Gabor transformation, GB reflection, a 3D diffraction technique, was developed to analyze both the reflectors frequency selective surface (FSS) in quasi-optical (QO) system. To validate this dual-channel QO system operating at 183 325 GHz designed tested. The proposed employs two-layer structure with FSS of perforated hexagonal array transmitting signal on top layer while diverting bottom layer. Measured...

The paper presents a rapid analysis method of THz double elliptical mirror system based on the Gaussian beam (GB) expansion and tracking, working frequency at 119 GHz. far-field pattern is firstly expanded into series sub-GBs making use point matching (PM), then tracking GBs successively with specular reflection to obtain near field far pattern. Synthesis results reflection, compared Physical optics (PO), reaching −60dB proves correctness modeling method.

A novel tanh-profile corrugated feedhorn application in quasi-optical system is proposed this paper. The simulation results of the are carried out via CHAMP. simulated bandwidth from 300GHz to 350GHz and center frequency 324GHz. can achieve very low return loss, sidelobe cross polarization levels around -40dB, -35.1 dB -45dB respectively.

A three-dimensional Diffractive Gaussian Beam Analysis approach for analyzing quasi-optical multi-reflector systems is presented. The illuminating field over the whole input plane analyzed into a set of elementary beams. These are propagated to reflector. Geometric Optics initially treats reflection, while edge diffraction modeled using canonical problem 3-D beam incident upon an opaque Kirchhoff half-screen. output beams can again be expanded proposed analysis verified against GRASP...

A piezoelectric plasma micro-thruster (PPMT) is being developed as a thruster for attitude adjustment of nano-satellites. The PPMT consists RF driven PZT film operating step-up voltage transformer, which can ionize neutrals and accelerate ions electrons in plasma. was with low through the thickness at resonance frequency radial direction. To simulate operation PPMT, pulse applied to base corresponding output voltages within grounded aperture plate were measured determine transformation...

A method of transforming high-order Gaussian beams (GBs) mode into circular symmetry fundamental beam (FGB) with arbitrary waist size is presented using irradiance moments in quasi-optical (QO) converters. The double shaped mirrors correcting amplitude and phase simultaneously are generated by a single incidence sampling data known ideal output FGB taking advantage linear moment matching technique Fresnel diffraction theory, which can be applied to wide frequency range especially significant...