The radiation pattern of an antenna is a plot of the relative field strength of the radio waves emitted by the antenna at different angles. It is typically represented by a three-dimensional graph, or polar plots of the horizontal and vertical cross sections. The pattern of an ideal isotropic antenna, which radiates equally in all directions, would look like a sphere. Many nondirectional antennas, such as monopoles and dipoles, emit equal power in all horizontal directions, with the power dropping off at higher and lower angles; this is called an omnidirectional pattern and when plotted looks like a torus or donut. COUNT 5
QSN1 A plot of the radiation behaviors of an antenna would show what? ANS1 relative field strength QSN2 What type of pictoral aid is often used to show this? ANS2 three-dimensional graph QSN3  A sphere shows what type of antennas radiation? ANS3 isotropic QSN4 Dipoles are considered to be what antenna type? ANS4 nondirectional QSN5 What would an omnidirectional antenna look like if plotted? ANS5 donut