#### microlab

##### Full Member level 5

how can we calculate the impedance of an natenna?

i would like to do this for the antenna of the fm radio arial

of about 30 cm length.

how can i calculate the impedance of the same?

and how can i use the same as an antenna with the impedance of 50 ohm?

i understand it is possible by adding an additional inductor to the same.

but how can i calculate the value of the inductor?

should i reduce the antenna length?

is there any equation to find out the antenna impedance and the inductor value?

i want to use the same for the rf transmitter working at the frequence of 433 mhz

thanking you all

ml