RT Journal Article
T1 Ultra-Wideband VCO Phase-Noise Reduction Loop Based on a Six-Port Phase-Shifterless Delay-Line Discriminator.
A1 Ávila Ruiz, Juan Manuel
A1 Molina-Fernández, Íñigo
A1 Moreno-Pozas, Laureano
A1 Moscoso Mártir, Álvaro
K1 Osciladores
K1 Semiconductores de banda ancha
AB In this paper, a novel frequency-locked loop (FLL) architecture for phase-noise reduction of wideband voltage-controlled oscillators (VCO) is presented. The circuit makes use of a phase-shifterless frequency discriminator, which completely avoids the use of any control circuitry to keep the loop in its quadrature condition, highly simplifying the loop. The FLL circuit, which can be operated in a completely transparent way, can be easily interchangeable with the original VCO. An FLL prototype, based on a commercial state-of-the-art VCO, has been fabricated and measured exhibiting a phase-noise reduction higher than 9 and 5.5 dB up to 100-kHz and 1-MHz offset from carrier, respectively, in the complete 4.6-9-GHz band. Absolute phase noise results of -106.5 and -124 dBc/Hz at 100-kHz and 1-MHz offset from carrier have been obtained, showing lower phase noise than other wideband FLLs in the literature.
PB IEEE Transactions on Microwave Theory and Techniques
YR 2014
FD 2014-11-14
LK https://hdl.handle.net/10630/33210
UL https://hdl.handle.net/10630/33210
LA eng
NO J. M. Ávila-Ruiz, I. Molina-Fernández, L. Moreno-Pozas and A. Moscoso-Mártir, "Ultra-Wideband VCO Phase-Noise Reduction Loop Based on a Six-Port Phase-Shifterless Delay-Line Discriminator," in IEEE Transactions on Microwave Theory and Techniques, vol. 62, no. 12, pp. 3076-3084, Dec. 2014.
NO Política de acceso abierto tomada de: https://v2.sherpa.ac.uk/id/publication/3525?template=romeo
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 21 ene 2026