There are some advantages of air core inductors are given below,
The air core inductor is simple in construction.
The air core inductor does not depend upon the value of current it carries and also eliminates the iron losses from magnetic core.
It has no core losses at high frequencies.
The air core inductor is cheap.
There are some disadvantages of air core inductors are given below,
The inductors of high inductance value are not possible.
It is in large size.
The number of turns in a coil necessary to achieve the same inductance that would occur in a solid-core inductor.
Its Q factor is low.
By Feng, Aolittel Technology Co.,Ltd. Date : 4th,Aug,2018