Flat Top Dipole Antenna Design Simulation Using Matlab
Flat Top Dipole Antenna Design Simulation Using Matlab
3D antenna radiation simulation from matlab
3D antenna simulation of the dipole antenna element
The figure displays the 3D radiation pattern of a flat-top dipole antenna. The pattern has the classic doughnut shape, with the strongest radiation occurring in the x-y plan perpendicular to the length of the dipole and little to no radiation along the z-axis. A color gradient is used to indicate radiation intensity in dBi, with red representing the highest radiation levels (around 0 dBi) and blue showing the weakest (down to -45 dBi). The spherical reference grid helps visualize how the antenna radiates energy in all directions, while the labeled azimuth (az) and elevation (el) angles show its orientation. This pattern aligns with the expected behavior of dipole antennas, which radiate most effectively broadside to their axis and produce minimal radiation along their length
Dipole Antenna Configuration
The dipole antenna, designed for 433 MHz operation, has a length of 0.205 meters (half the wavelength), making it a half-wave dipole. Its width of 0.002147 meters influences impedance and bandwidth. The feed is centered for symmetrical current distribution, and the antenna is oriented vertically with a 90-degree tilt. Made of copper with a conductivity of 5.96 × 10⁷ S/m, it minimizes losses and improves efficiency. The conductor thickness of 3.558e-5 meters accounts for the skin effect at high frequencies. The system impedance is 50 ohms for proper matching with RF equipment and optimal power transfer.