Your are in information over load with no way to sort it out.
You need to go the school to learn AC impedence theroy first then another course on antennas and transmission lines.
Then what you hear here will begin to make sense and be able to reject myths and hear-sey.
Until you do you will be in confusion.
For instance a flat SWR has no direct relation to antenna resonance.
Feed impedance has no direct relationship to antenna resonance.
For example take an off center fed dipole. Meaning one side is longer than the other.
Even if the antenna is resonant on 11 meters; if the feed point is moved along the antenna by changeing the feed point without changing the total length of the antenna, the only thing that changes is the impedance at that feed point, demenstrating the feed impedance has nothing to do with the antenna resonance. Only the impedance changes.
Why: the voltage and current along the antenna changes with postion or the same general reason the formula R= E/I. If either E or I or both change, R changes, not the resonant frequency.
You keep trying to connect them togather. You can't.
This is why school is needed to fully understand as you say you want to do.
Hope I have not insulted you but to just bring some of the the facts to light.
Good luck.
