multiple frequency antenna array

hi there
In an array i know that to meet specific requirement one of the control is distance between elements. but if we are using a multiple frequency antenna or a reconfigurable antenna wouldn't it be a problem to place elements at a fix separation relative to there frequency( or wavelength). say F1 frequency antenna need to be separated by X distance but F2 frequency antenna for same features needed to be placed at Y separation. but we have a a single antenna operating at both frequency.
so is it not possible to have an array of multiple frequency antenna and if it is possible then help me to find out how

- lkminz

use multiple antennas covering the multiple freq range and use diplexers to combine.

yes thats really one of the option
thanks

but i was looking for way to make array of multiple frequency antenna or reconfigurable antenna

reconfigure case you will be selecting frequency or limited band and not covering the entire band at an instance is it OK?

yes
u r right
not all band will be covered at one time