Six-Port-Based Architecture for Phase Noise Measurement in the UWB Band. (2nd January 2014)

• Record Type: Journal Article
• Authors: Ávila-Ruiz, J. M.; Moscoso-Mártir, A.; Durán-Valdeiglesias, E.; Moreno-Pozas, L.; de-Oliva-Rubio, J.; Molina-Fernández, I.
• Other Names: Helaoui Mohamed Academic Editor.
• Is Part Of: Journal of electrical and computer engineering. Volume 2014(2014)
• Publication Date: 2014-01-02
• Subjects: Computer engineering -- Periodicals; Electrical engineering -- Periodicals; 621.3905
• DOI: 10.1155/2014/646738
• Languages: English
• ISSNs: 2090-0147

Abstract

Abstract : A six-port-based frequency discriminator for phase noise measurement is proposed. This circuit makes use of a delay line discriminator configuration, thus not requiring reference oscillator. Furthermore, the use of a six-port network allows an extremely simple and completely passive solution well suited for low power oscillator measurement. A detailed study of the architecture is performed including the system noise sources. Besides, a prototype of the proposed six-port based delay line frequency discriminator is evaluated. Phase noise measurements of a commercial RF VCO are performed and compared with the results obtained with commercial metrology equipment with good agreement.