Dish Antenna Animation (Parabolic antenna / reflector) (FDTD simulation) 📡

Finite-difference time-domain (FDTD) simulation of a parabolic reflector antenna in the transmitting phase. Reflector antennas are frequency-independent antennas and they are highly directive. As long as the source is located at the focal point, the reflected field travels in the broadside direction. In this simulation, two short pulses - first one at central frequency of 100 MHz and the other at 200 MHz are fired from the focal point (VHF regime). f/D (focal length/diameter) ratio is 0.257.

Normally, the feed antenna is also chosen to be directive, but for the purpose of illustration, we have chosen a point source as the feed antenna.

Parabolantenne, パラボラアンテナ, 卫星天线, Зеркальная антенна, ഡിഷ് ആന്റിന, Parabolantenne, จานดาวเทียม, آنتن سهموی, طبق الأقمار الصناعية Antenna parabolica, Antena parabólica, Parabolantenn, Schotelantenne, Antenne parabolique

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