Abstract:
A 20.7-31.8GHz dual-mode voltage waveform-shaping oscillator is presented in this paper. Dual-mode voltage waveform shaping resonator is proposed to excite two pairs of r...Show MoreMetadata
Abstract:
A 20.7-31.8GHz dual-mode voltage waveform-shaping oscillator is presented in this paper. Dual-mode voltage waveform shaping resonator is proposed to excite two pairs of resonances, representing fundamental and third-order harmonic in two modes, respectively. Mode-switch-circuits are implemented to allocate specific mode without degrading the Q-factor of the resonator. As a result, the square-like voltage waveform can be obtained in dual-mode to reduce the ISF rms value for lower phase noise and further extend the tuning range. The oscillator is fabricated using a conventional 28nm CMOS technology with the core size of 420μm by 160μm, which exhibits a measured phase noise of -102.46dBc/Hz at 1MHz offset with a carrier frequency of 25.56GHz. A state-of-the-art FoMT of 195.8dBc/Hz is achieved with the wide tuning range of 42.3% and power consumption of 5.5mW.
Date of Conference: 10-12 June 2018
Date Added to IEEE Xplore: 09 August 2018
ISBN Information:
Electronic ISSN: 2375-0995