What are differences between broadside array and end fire array?

end fire array

A combination of identical and equally spaced antenna that radiate along the axis of the axis of the antenna array is known as an end fire array.

the elements are fed with a current of equal magnitude but opposite in phase.due to this variation in phase ,the radiation obtained is unidirectional.

broadside array

when the maximum radiation of an array is directed normal to the axis of array it is known as broadside array.

in a broadside array combination a number of identical antennas are set up along a line drawn perpendicular to their respective axis.