farshidazhir
Electrical
If the position of feeder in dipole antenna change (not center-feed)what is electric field and magnetic field formula?
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change the position of feeder in ipole antenna
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The field will not change. The impedence will change upwards from the 75 ohms at the center to about 300 ohms if you feed it about the 1/3 point (so-called a "windom"). You may also experience radiation from the feeder as the 2 legs are not symmetrical (or balanced). This can be reduced with a choke at the feed point.
Check some of the ham radio literature - that's where I learned it!
Check some of the ham radio literature - that's where I learned it!
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