I've always wondered what constitutes the appropriate value of inductance for an RF choke. It is different at different frequencies. The reactance is given as....
XL = 2*pi*f*L
... meaning the same inductor has a higher reactance at higher frequencies. In many cases a choke is used to bias a transistor's collector but keep the signal off the power source's rail. This is done by XL. What is a high enough XL? 5K? 10K? ..... 100K?
XL = 2*pi*f*L
... meaning the same inductor has a higher reactance at higher frequencies. In many cases a choke is used to bias a transistor's collector but keep the signal off the power source's rail. This is done by XL. What is a high enough XL? 5K? 10K? ..... 100K?