Figure 2-4.
Radiation pattern of a half-wave antenna.
c. Transmission Lines.
RF energy developed by a radio transmitter must be
conveyed to a transmitting antenna to be radiated.
RF energy intercepted by a
receiving antenna must be conveyed to a receiver so that the receiver can develop a
usable audio signal. The link between the antenna and the transmitter or receiver
is called a transmission line.
There are four types of commonly used RF
transmission lines. These are shown in figure 2-5.
Figure 2-5.
Types of RF transmission lines.
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