Induction and antennas

Thread Starter

Andy Larson

Joined Mar 26, 2015
51
i was wondering what would a torus inductor have on an wire antenna. The wire antenna would be going through the inductor. Please do include difference between the core type, and current type (DC or AC) for my use. I have a few inductors (ferrite and ceramic) I was going to use to improve a radio I built from a kit
 

Papabravo

Joined Feb 24, 2006
21,160
It is a bit hard to picture what you are talking about. Inductors are used in antennas as traps to allow for multiband operation. They would typically be air wound as opposed to torroidal
 

Thread Starter

Andy Larson

Joined Mar 26, 2015
51
It is a bit hard to picture what you are talking about. Inductors are used in antennas as traps to allow for multiband operation. They would typically be air wound as opposed to torroidal
Ok thanks anyway, I was contemplating extracting some toroidal ferrite/ceramic core out of some inductor to provide the cleaner radio
 

DickCappels

Joined Aug 21, 2008
10,152
In general, putting an antenna through a toridal ferrite core will make the antenna appear to be electrically longer. There will be other effects, but I cannot predict them.
 
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