Modal Space - Back to Basics: Could you explain the difference between the time domain, frequency domain and modal space?Avitabile, P
Time and frequency domain analysis:FDTD provides a dynamic view of EM fields’ evolution over time. A built-in automated Fourier transform of the time-domain solution easily makes frequency analysis possible. Broadband capabilities: Because it is a time-domain method, FDTD can be used to calculate...
aThe difference between ωt and ω0, as calculated from Eq. (6), determines the frequency shift needed to switch the system from complete reflection to complete transmission. 在ωt和ω0之间的区别,如从Eq被计算。 (6),确定必要的频移交换系统从完全反射到完全传输。[translate]...
Research on very low frequency( VLF) signal transmission characteristics in the ionosphere is vital for satellite VLF communications. Existing finite difference time domain( FDTD) algorithms on the study of ionospheric propagation properties are mostly based on high- frequency pulse signal and propagation...
Relative error |er| is the difference between the computed value of frequency fc and the actual value f normalized by the actual value. The applied limit |er| < 0.015 means that both frequencies are reconstructed with error below 1.5%. Moreover, if no error limits are applied to FT (...
Time Data ___ ___ 0 sec 0 0.00097656 sec 0.2011 0.0019531 sec 0.39399 0.0029297 sec 0.57078 Note that the time values inXTare strictly increasing, equidistant, and finite. Compute the difference signal and its amplitude spectrum. Set the value of'Domain'to'frequency'since the orders are in...
It is shown that the time-domain-finite-difference (TD-FD) approach is capable of calculating microstrip end-effects over a large frequency range. A numerical example is calculated using an open-ended microstrip on alumina substrate. Plots of the time-domain fields are presented and the one-por...
In contrast with frequency-domain methods, FDTD can allow the determination of the spectral response of a simulated system, within a specified frequency range, with a single run. After completion of the simulation, the time-dependence of the electromagnetic field and derived quantities can be conv...
This paper quantitatively compares finite-difference and finite-element solutions of the scalar and elastic hyperbolic wave equations for the most popular implicit and explicit time-domain and frequency-domain techniques. It is imperative that one choose the most cost effective solution technique for a ...
Soliton frequency shifts in subwavelength structures Full-wave Maxwell-Bloch equations are solved numerically by using the finite-difference time-domain method. It is shown that both soliton blueshift and red... X Song,Y Ming,M Wu,... - 《Journal of Optics》 被引量: 7发表: 2015年 Carrier-...