- #1
JamesGoh
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Currently reading over some lecture notes on Hertzian dipoles and I want to confirm my understanding on why the E-field pattern is donut shaped.
1) The Herztzian (aka. 1/2 wave ) diploe has two terminals attached to a transmission line feeder. The feeder sends RF current into the terminals which in turn produce EM waves.
2) Since the transmission line feeder itself consists of current going from one side to another, it is natural that the E-field component of the waves travel from one terminal to another (producing a circular pattern, similar to charges in the Earth's magnetic field)
3) Viewing this pattern from above, one can see the "donut" shaped pattern of the E-field
Thoughts, comments ??
Please feel free to correct me if I am wrong in any concept or theory
1) The Herztzian (aka. 1/2 wave ) diploe has two terminals attached to a transmission line feeder. The feeder sends RF current into the terminals which in turn produce EM waves.
2) Since the transmission line feeder itself consists of current going from one side to another, it is natural that the E-field component of the waves travel from one terminal to another (producing a circular pattern, similar to charges in the Earth's magnetic field)
3) Viewing this pattern from above, one can see the "donut" shaped pattern of the E-field
Thoughts, comments ??
Please feel free to correct me if I am wrong in any concept or theory