COMPUTER FUNDAMENTALS

Detailed explanation-1: -An antenna which radiates uniformly in all directions in three-dimensional space is called an isotropic antenna.

Detailed explanation-2: -An isotropic antenna (also known as an omnidirectional antenna) emits the signal uniformly in all directions. In other words, at distance d from the antenna, in any direction, the transmitted signal power is the same (Figure 5.1).

Detailed explanation-3: -In antenna theory, an isotropic antenna is a hypothetical antenna radiating the same intensity of radio waves in all directions. It thus is said to have a directivity of 0 dBi (dB relative to isotropic) in all directions.

Detailed explanation-4: -An omnidirectional antenna radiates radio wave power uniformly in all directions in one plane, with the radiated power decreasing against elevation angles above or below the plane, dropping to zero on the antenna’s axis, and producing a “doughnut-shaped” radiation pattern, as shown in Fig.