1. Patterns of Radiation of Antennas Dipole

Use the mouse, to change the Pattern of Radiation.

2. Terms

The most important characteristics in the design for antennas are:

• Pattern of Radiation.- Is the representation of the radiation or distribution of the energy of an antenna in function of the direction (Figure 1). It is used to find a good field distribution. The necessary fact to calculate it through this program is L, as the size in longitude of wave of the antenna (Figure 2).

• Gain.- Relationship of voltages taken place by the antenna and a radiator isotropic.

• Wide of the Sheaf.- Angle between two points where the level of power has diminished to 50% of the maximum value.

• Impedance in the Point of Excitement.-  Determines the efficiency with the one which, an antenna acts as transducer among the means of propagation and the line of transmission of the system where it operates.

• Wide of Band.- Is the property of the antenna of working in certain you limit of frequency.

Angle of Radiation = 27.5° y Resistance of Radiation = 105.5 Ohms

Figure 1: Pattern of radiation of an Antenna Dipole with L=1.5 wave longitude.

Figure 2: Antenna Dipole.

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