[QUESTIONS] about RF inductors

[oasis4355]

Dear All

I'm trying to build an FM transmitter, transmitting at 100MHz. As i'm buying the inductor for the tank circuit for the oscillator in the transmitter, i come across this type of inductor called "RF inductor". Is it suitable for my transmitter? or should i just use my homemade indcutor (air core), or just any other normal inductors?

As i go through www.farnel.com, there's a paramater know as "resonant" under this RF inductor, does that have anything to do with my transmitting frequency?

Thanks in advance.

Alex
oasis4355@yahoo.com

 

[boy]

You have to look at the self resinace frequency for the inductor and Q. RF inductor has high self resonance frequency and Q is large. You can use you homemade inductor for 100 MHz but you just need to concern about Q value. The Q value detemines the size of the conductor.