Dielectric_oscillator_at_10_GHz

hello every one.

I find no words to describe my situation.

there is 2 months that I am designing a DRO oscillator in microstrip technology at 10 GHz

I tried the following figure, but without success.

Please, help me, soon my academic defense and I have done nothing yet.

if you know a schema, a list of steps, I would be very happy even with a single encouraging word.
i would inform you that is the first time that i work on HF circuits.

thank you with all my heart.