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Dhruv said:
Like a spherical radiation pattern.berkeman said:
I should calculate the array factor correct ? And then from there I should calculate angle for maxima ?berkeman said:
An antenna is a device that is used to send or receive electromagnetic waves. It converts electrical energy into radio waves and vice versa.
An antenna works by using the principle of electromagnetic induction. When an alternating current flows through the antenna, it creates an oscillating magnetic field that in turn creates an electromagnetic wave.
The performance of an antenna is affected by factors such as its size, shape, material, and orientation. The frequency of the electromagnetic wave and the environment in which the antenna is placed also play a role in its performance.
Wave propagation is the way in which waves travel through a medium. This can include radio waves, sound waves, and light waves. In the context of antenna and wave propagation, it refers to the way in which electromagnetic waves travel through the atmosphere.
There are three main types of wave propagation: ground wave, sky wave, and space wave. Ground wave propagation occurs at lower frequencies and travels along the Earth's surface. Sky wave propagation occurs at higher frequencies and bounces off the ionosphere. Space wave propagation occurs at even higher frequencies and travels in a straight line from the transmitter to the receiver.
