Jpole antenna is nothing but an omni-directional antenna having a configuration similar to 'J' and it consists of a half-wave antenna end-fed by a parallel-wire quarter-wave segment.
In the above figure A, B, C, D denotes the feet values of the antenna.
If the current frequency is 100 MHz, then find the dimensions in various stages for the above given diagram.
Frequency (f)= 100 MHz Feet (A) = 705 Feet (B) = 234 Feet (C) = 23 Feet (D) = 22
Long section dimension (A) Short section dimension (B) Feed point dimension (C) Spacing dimension (D)
Let us calculate various dimensions for the given frequency.
|Long section dimension||=||705 / frequency|
|=||705 / 100|
|Short section dimension||=||234 / frequency|
|=||234 / 100|
|Feed point dimension||=||23 / frequency|
|=||23 / 100|
|Spacing dimension||=||22 / frequency|
|=||22 / 100|
Learn how to calculate Jpole Antenna dimensions in this tutorial, given with the definition, formula and example.