Phase noise characteristics improvement of hybrid integrated microwave oscillators

This paper shows a new way of overcoming the problem of phase noise in millimetre wave hybrid integrated oscillators. With the help of our technique, introduced in this paper, we can reach 3-8 dB phase noise reduction. Besides the phase noise characteristics improvement, the other fact that gives significance to our approach is that microwave designers can utilize it in their previously completed designs without need for reconfiguration of their original circuits. The validity of the presented technique is proven by calculations, simulation results and measurements.