Performance analysis of a nanocolumn-RTD VCO for emerging THz wireless applications

Nobrega, Rafael and Raddo, Thiago and Duarte, Ulysses and Glesk, Ivan and Sanches, Anderson and Loiola, Murilo Loiola; (2020) Performance analysis of a nanocolumn-RTD VCO for emerging THz wireless applications. In: 2020 IEEE Latin-American Conference on Communications (LATINCOM). IEEE, online. ISBN 978-1-7281-8904-8 (https://doi.org/10.1109/LATINCOM50620.2020.9282323)

[thumbnail of Nobrega-etal-IEEE-Latincom-2020-Performance-analysis-of-a-nanocolumn-RTD-VCO-for-emerging-THz]
Preview
 Text. Filename: Nobrega_etal_IEEE_Latincom_2020_Performance_analysis_of_a_nanocolumn_RTD_VCO_for_emerging_THz.pdf
Accepted Author Manuscript
Download (520kB)| Preview

Abstract

The data rates which can be processed by integrated communication systems are increasing as the CMOS process and photonic technologies scale. Emerging bandwidth-hungry applications demand new solutions based on terahertz (THz) systems. This work proposes a GaAs/AlAs nanocolumn-Resonant Tunneling Diode (Nano-RTD) device as a voltage-controlled oscillator (VCO) for frequency generation in the THz spectrum window, i.e., Y-band (325 – 500 GHz). A comprehensive semianalytical approach to evaluating the performance of the Nano-RTD VCO device is developed. The latter addresses the oscillation frequency, maximum oscillation frequency, tuning range, output power, DC consumption power, and DC/AC conversion efficiency. Moreover, the oscillation stability of the designed device in the Y-band was numerically verified. Results shown that the device can operate in the Y-band (@ 500 GHz and 300 K), with a very-low DC power consumption down to 0.16 mW, along with a good DC/AC conversion efficiency (2.4%). The Nano-RTD VCO is compatible with current CMOS fabrication technology and has a very compact footprint (2000 nm2). Finally, the device may be used as part of system solutions to satisfying emerging THz wireless applications such as in-body nano-communication, wireless nano-networks, and network-on-chip.

ORCID iDs

Nobrega, Rafael, Raddo, Thiago, Duarte, Ulysses, Glesk, Ivan ORCID logoORCID: https://orcid.org/0000-0002-3176-8069, Sanches, Anderson and Loiola, Murilo Loiola;
CORE (COnnecting REpositories)