Investigation of Modulation Bandwidth in High-Frequency VCOs Fabricated in 130 nm SiGe BiCMOS Technology

Publikation: Beitrag in Buch/Konferenzbericht/Sammelband/GutachtenBeitrag in KonferenzbandBeigetragenBegutachtung

Abstract

This paper presents a characterization of the modulation bandwidth in high-frequency voltage-controlled oscillators (VCOs) fabricated using 130 nm SiGe BiCMOS technology. The study focuses on analyzing the modulation bandwidth’s dependency on key parameters such as tuning sensitivity, oscillation frequency, and amplitude of the modulating signal for LC cross-coupled oscillators with MOS-varactors for frequency adjustment. Experimental investigations demonstrate the conditions under which the modulation bandwidth can be approximated by the frequency deviation (∆f). The results highlight the complex interplay between VCO’s tuning sensitivity (KVCO), modulation frequency, and linearity, shedding light on the factors influencing the modulation bandwidth’s behavior. The findings provide valuable insights for the design and optimization of VCOs in high-frequency applications, particularly in radar systems, communication circuits, and frequency synthesizers employed in frequency-modulated continuous-wave (FMCW) radar setups.

Details

OriginalspracheEnglisch
Titel2024 31st IEEE International Conference on Electronics, Circuits and Systems (ICECS)
Seitenumfang4
ISBN (elektronisch)979-8-3503-7720-0
PublikationsstatusVeröffentlicht - Jan. 2025
Peer-Review-StatusJa

Konferenz

Titel31st IEEE International Conference on Electronics Circuits and Systems
KurztitelICECS 2024
Veranstaltungsnummer31
Dauer18 - 20 November 2024
Webseite
BekanntheitsgradInternationale Veranstaltung
OrtProuvé Convention Center
StadtNancy
LandFrankreich

Externe IDs

ORCID /0000-0002-1851-6828/work/177360457
ORCID /0000-0001-5748-3005/work/177360612
unpaywall 10.1109/icecs61496.2024.10849158

Schlagworte

Forschungsprofillinien der TU Dresden

Schlagwörter

  • voltage-controlled oscillator (VCO), modulation bandwidth, SiGe BiCMOS technology, tuning sensitivity, frequency modulation, frequency-modulated continuous-wave (FMCW)