Schottky limiter temp compensation

Hi there

I am trying to find a good solution to the following problem. I am using a schottky diode limiter arrangement within an oscillator feedback loop to limit the gain to unity during steady-state operation. The problem is that the forward voltage drop of the diodes vary with temperature, resulting in what is essentially AM noise on the oscillation.

Simply put, I need a circuit which will probably include the same schottky diode to apply a bias to the limiter diode, which will offset (reverse) the voltage change over temperature.

I have attached a simple schematic to illustrate the situation.

Does anyone have any experience with a similar problem or any ideas?

Your help will be greatly appreciated!

What is the frequency of your oscillator?

look up vbe amplifier, same situation with most power amps.

Thanks guys. The frequency of the oscillator is roughly 100Mhz.