Reduce the gain of omidirectional antenna

i have omidirectional antenna with gain 8dbi and i need to reduce it 2dbi , the antenna have inductor and PCB
if anyone have ideas plz help
thxs

Try changing the value of Inductance. Is it a Planar dipole Antenna ?

6 dB attenuator will do the job

Hi Alaf Nabil,
Why do you want to reduce the gain?
Z