Patent ID: 7265642

Claim:
An oscillator, comprising: an active device having first, second and third terminals; circuitry coupled between the first and second terminals of said active device and operative to provide a bias voltage to said active device and feedback a select amount of phase noise into said active device; and a tuning diode network coupled to the second terminal of said active device through a slot-cut-printed-board coupling circuit, the slot-cut-printed-board coupling circuit including a base having a width dimension w, a height dimension h, length dimensions l 1 and l 2 , and a slot of width d, the slot dividing the base into two regions defined by l 1 and l 2 , and wherein the ratio of l 1 /w or l 2 /w is selected for a given dielectric constant ε r and the slot width d to define a thermal profile for compensating for thermal drift associated with the oscillator over a tuning voltage range.