Recent Advances in mm-Wave and Sub-THz/THz Oscillators for FutureG Technologies

TL;DR

This review summarizes recent technological advances in mm-wave and sub-THz/THz oscillators, focusing on design approaches, performance metrics, challenges, and emerging techniques for future communication and sensing systems.

Contribution

It provides a comprehensive overview of recent developments, design trends, and guidelines for high-performance oscillators in the mm-wave and sub-THz/THz frequency ranges.

Findings

Various design approaches like CMOS, SiGe, and III-V are explored.

Key challenges include achieving high phase noise performance and stability.

Emerging techniques aim to enhance efficiency and tunability.

Abstract

This paper provides a concise yet comprehensive review of recent advancements in millimeter-wave (mm-wave) oscillators below 100 GHz and sub-terahertz (sub-THz/THz) oscillators above 100 GHz for next-generation computing and communication systems, including 5G, 6G, and beyond. Various design approaches, including CMOS, SiGe, and III-V semiconductor technologies, are explored in terms of performance metrics such as phase noise, output power, efficiency, frequency tunability, and stability. The review highlights key challenges in achieving high-performance and reliable oscillator designs while discussing emerging techniques for performance enhancement. By evaluating recent design trends, this work aims to offer valuable insights and design guidelines that facilitate the development of robust mm-wave and sub-THz/THz oscillators for future communication, computing, and sensing applications.