Is there a similar calculator for "angle" conductors - e.g. the
"half a square" conductors used in some commercial antennas?
Viewed from one end, they might be an 1/2" or 3/4" "L" with
the top/bottom laying across the multiple driven elements and
the sides forming a parallel plate line spaced 1/4" to 1/2".
73,
... Joe, W4TV
On 2022-10-09 10:49 PM, Richard (Rick) Karlquist wrote:
See:
https://hamwaves.com/zc.square/en/
Running this gives a value of about 115 ohms.
The fact that it is aluminum doesn't affect Zo
73
Rick N6RK
On 10/9/2022 7:17 PM, Tonno Vahk wrote:
Hi,
I have EZNEC model of a tribander with one feedpoint where 10-15-20m
elements are joined with a transmission line of 20mm x 20mm aluminium
profiles, the gap between the profiles is 15mm.
For the model I need to know the impedance of the transmission line.
EZNEC provides a tool to calculate it from the wire diameter and
spacing. Is there any correction that should be applied with square
aluminium bars? How to calculate the correct impedance in this case?
In ENZEC model I have Length = Actual Distance, VF = 1. And the only
thing missing is the Zo I believe.
Look, forward to learn how this is calculated:)
73
Tonno
ES5TV
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