Whats the highest energy frequency an antenna can absorb?

Question

Whats the highest energy frequency an antenna can absorb?

Answer 1

The frequency an antenna absorbs is related to the size (and to a lesser degree, shape) of the antenna.  Efficient antennas are multiples of the length necessary for the wavelength (and frequency) to be absorbed.

I know of no limit to the frequency.  The LHC (Large Hadron Collider) has antennas to measure frequencies that are disturbingly exotic.

See http://en.wikipedia.org/wiki/ATLAS_exper... for more information on the LHC's primary sensor.

Answer 2

When the transmission line and the Ant produce a matched SWR. I mismatched produced reflected wave, inpeding the the efficient transfer to the Ant

Answer 3

There's no theoretical upper limit to the frequency.  If it absorbs enough energy to melt, I guess that would be an energy limit.  It absorbs most effectively at its resonant frequency and odd harmonics.