Practical_Antenna_Handbook_0071639586

C h a p t e r 3 : A n t e n n a B a s i c s 101
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Figure 3.9 Development of standing wave from traveling wave.
The half-wave center-fed dipole is simply one specific length of the arbitrary-length
antenna shown in Fig. 3.9. In fact, if we assume that the curves of Fig. 3.9 are describing
voltage waveforms, the vertical dotted line in the figure can be thought of as corresponding
to one end of a center-fed l/2 dipole, and everything to the right of the dotted
line can be discarded when discussing conditions on the dipole. The most important
points to note for a l/2 center-fed dipole are then: