Free RF animations and java applets, Antenna animations

Animations of the 2D propagation of electromagnetic waves in the presence of different distributions of refractive index This page contains animations of numerical solutions to Maxwell's equations in a 2D domain (using the finite-difference time-domain method with a staggered "Yee lattice"). A wave is excited at the bottom of the domain and propagates upwards

Communication engineering applets to understanding some of the principles of telecommunication engineering

Electromagnetic field animations

Electromagnetic theory antennas, polarization, standing wave, reflection and transmission, radiation from the source, diffraction by a half-infinite ground plane, microwave circuits, ..., a tip

Electromagnetic oscillating circuit this simulation deals with an electromagnetic oscillating circuit, consisting of a capacitor and an inductor

How Radio Communication Works How Radio Communication Works

Mobile Computing Applets CDMA, IrDA, Bluetooth-Scatternet, DSDV Routing, DSR Routing, OLSR Routing, Link-Reversal

Physics, electromagnetism and quantum mechanics details the findings of Larry Spring in areas such as physics, electromagnetism and quantum mechanics

Phase Locked Loop (PLL) Phase locked loop (PLL) is used for synchronous demodulation of AM signals with suppressed carrier or little carrier

Propagation loss models used in cellular system planning these applets plot the graphs of path loss (dB) against distance (km) on a grid

T-network tuner simulator a simulator for the popular, series capacitor, parallel inductor T-network tuners, SWR

Time and Frequency Domains To illustrate the Frequency Domain representation of a single sinusoid

Time domain vs. frequency domain the three-dimensional plot of frequency, amplitude and time that shows the relationship between the time and frequency domains. It does so by looking at the fundamental of a sine wave -- and up to three harmonics -- as they are formed by rotating vectors

Tuning a radio receiver this tutorial demonstrates how variable capacitors are used with inductor coils in tuning circuits of radios, television sets, and a number of other devices that must isolate electromagnetic radiation of selected frequencies

Satellite

GPS and GLONASS Satellite Networks

GPS and GLONASS simulation

GPS Animation GPS Animation, What is the Global Positioning System?

GPS Animation

GPS: How GPS works How GPS works animation

GPS Global Positioning System GPS Global Positioning System Animation

Localisation par satellite (GPS). Global Positioning System Localisation par satellite (GPS). Global Positioning System

Use sun or moon to choose the best place for your satellite antenna

Sun-Satellite Interference Geosynchronous satellites are used for many telecommunication and broadcast purposes. Such satellites appear to be stationary as viewed from the ground, and are able to provide coverage over large areas

Horizontaal

Antennas

1.5 Wavelength Dipole Antenna Energy Distribution Radiated By a 1.5 Wavelength Dipole Antenna

Antenna directivity Radiation profile (angular dependence of the Poynting flux = directivity) can be varied by a suitable choice of the number of antennas in an array and the phase angle between neighbouring radiation fields

Antenna pattern of a linear array

Broadband Double-Ridged Horn Antenna

Dipôle en Français

Dipole antenna

Dipole antenna Animation of the evolution of a dipole antenna from a resonant circuit

Dipole antenna Electric force lines radiated from a small dipole

Dipole antenna Radiation Pattern of a Dipole Antenna As a Function of Dipole Length

Dipole antenna beside a head shows a dipole antenna radiating at 1800MHz beside a human head

Dipole array

Dipôle à grande distance en Français

Electric dipole The contour of the potential and the electric force lines produced by an electric dipole

Electrostatic field and electromagnetic field comparison between electrostatic field and electromagnetic field

Electromagnetic field animations

Folded dipole antenna Folded dipole antenna, The animation below shows a folded dipole antenna driven by a sinusoidal signal at 454MHz. The animation shows the magnetic field perpendicular to the plot

Half-wavelength dipole antenna

Handphone Antenna Simulation of Electromagnetic Field in A Realistic Human Head Model under RF Radiation from A Nearby Handphone

Linear antennas linear dipole antenna, two dipole array

Linear arrays radiation pattern of a single element antenna, This applet displays the radiation electric field magnitude of an 'n-element' uniform linear array

Near field of a mobile phone at 2.1GHz Near field of a mobile phone at 2.1GHz. The electric field strength is shown, Radiation of a mobile phone- PIFA-Antenna

Parabole antenne - construction en Français

Parabolic Dish Antenna Reflection of Signals by a Parabolic Dish Antenna

Parabolic reflector animation This animation demonstrates the reflection property of parabolae

Parabolic reflectors and antennas this applet helps you understand, interactively, why the parabolic shape is important and its use as a reflector. The parabolic reflector is widely used and it is important to understand its reflecting properties

POLARIZAÇÃO DE ONDAS Radiation field

Radiation in an automobile with normal and with roof-antenna

Radiation from an oscillating electric dipole Animation shows the electric field lines due to an electric dipole oscillating vertically at the origin

Radiation from a quarter wave antenna part of the course: electromagnetic fields

Radiation from a quarter wave antenna The animation shows electric dipole radiation from a quarter-wave antenna. The radiation generated by this antenna has a wavelength which is equal to four times the the half-length of the antenna

Radiation pattern of a dipole antenna as a function of dipole length

Reflection of Signals by a Parabolic Dish Antenna

Wave motion in 2 dimensions close to antennas and other conducting structures This java applet is a simulation that demonstrates electrodynamics in two dimensions, including setups which demonstrate electromagnetic waves, reflection at conductors, radiation from antennas, standing waves, waveguides, and diffraction

Yagi Antenna shows a Yagi antenna driven by a sinusoidal signal at 454MHz. The animation shows the magnetic field perpendicular to the plot using a dB scale

Yagi antenna modeling applet you can change the frequency, element diameter, and number of segments used to solve the equations by typing in the input fields provided

Horizontaal

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