- #1
houlahound
- 908
- 223
Did not know how to word this properly.
Looking for an equation to show the behaviour of how EM can be "lensed" as a function of wavelength/frequency.
ie RF waves can not be lensed/focussed to a spot.
what equation determines the minimum spot size a lens can focus EM radiation as a function of frequency?
Looking for an equation to show the behaviour of how EM can be "lensed" as a function of wavelength/frequency.
ie RF waves can not be lensed/focussed to a spot.
what equation determines the minimum spot size a lens can focus EM radiation as a function of frequency?