학술논문
28 GHz Quadrature Frequency Generation Exploiting Injection-Locked Harmonic Extractors for 5G Communications
Document Type
Conference
Source
2019 17th IEEE International New Circuits and Systems Conference (NEWCAS) Circuits and Systems Conference (NEWCAS), 2019 17th IEEE International New. :1-4 Jun, 2019
Subject
Language
Abstract
This paper proposes a mm-wave quadrature frequency generator using injection-locked harmonic extractors (HEs) incorporated with quadrature class-F oscillators. While maintaining high output levels at 28 GHz, the utilization of injection locking technique improves the effective quality ($Q$)-factor and helps to achieve a fundamental harmonic suppression of 60 dB. This results in an FoM of the entire frequency generation system reaching −184 dB. The consideration of quadrature phase mismatch induced by electromagnetic coupling between quadrature buffers is also discussed.