November 2000
Intermediate to advanced
336 pages
7h 43m
English
Content preview from Radio and Electronics Cookbook
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49
Standing waves
Before attempting to answer that question, we need to look at some aerial fundamentals. An aerial is a transducer, the word meaning ‘to lead across’. We use it whenever one form of energy is converted into another form. A bulb is a transducer; it converts electrical energy in the filament to radiated heat and light energy. Figure 1 shows the situation.
Figure 1 The light bulb converts electrical energy to electromagnetic light energy
An aerial, or ...
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