Work

Ultra-low power Ka-band phase noise optimized LCVCO with enhanced FOM of −197.300 dBc/Hz

Year: 2024

Type: article

Abstract: The NMOS cross-coupled LC Voltage-Controlled Oscillator (LCVCO) is considered an indispensable element in modern wireless communication systems. This research explores the design and implementation of a cross-coupled NMOS LCVCO using the UMC 65 nm CMOS process. The primary objective of this work is to achieve low Phase Noise for ka-band frequency applications with less power consumption . This article proposes Thermal and High frequency noise suppressed LCVCO (TH-LCVCO) technique. The TH-LCVCO technique incorporates a parallel capacitive filter to get rid of thermal noise at high frequencies and an LC tail filter to reduce the second-order harmonics. These techniques help to achieve low phase noise in all 16 tuning bands. The proposed TH-LCVCO technique consumes only 3.29 mW of power, achieving a frequency span from 32.17 GHz to 35.55 GHz with a Phase Noise of -112.6 dBc/Hz at 1 MHz and an Figure of Merit (FoM) of -197.300 dBc/Hz.

Source: Results in Engineering

DOI: 10.1016/j.rineng.2024.103718

Authors: N.R. Sivaraaj, K.K. Abdul Majeed

Institution: Vellore Institute of Technology University

Language: English

Topic: Radio Frequency Integrated Circuit Design

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,490

Funders: Vellore Institute of Technology, Chennai, VIT University