ABSTRACT
Advances in wireless communications have a great impact on our societal and economic challenges [1,2]. One of the most critical circuits of modern radiofrequency transceivers is the local oscillator, that is, an autonomous circuit operating as the “pulsing heart” of such systems, in an analogy with a human body. As any other solid-state circuits, oscillators are affected by the inherent noise of the electronic devices. One of the major negative effects of noise in oscillators is given by the induced variations on the instantaneous oscillation frequency, leading to the degradation of the spectral purity of the output voltage, referred as phase noise (PN) [3,4]. Oscillator PN performance directly affects the bit-error rate (BER) of the overall communication system [5].
