Title :
A low phase noise oscillator prototype at 10GHz using Sapphire cavity for the Brazilian gravitational wave detector Mario Schenberg
Author :
Mosso, M.M. ; Magri, V.P.R. ; Barucke, C.L. ; Souza, J.A.M. ; Aguiar, Odylio Denys ; Furtado, S.R.
Author_Institution :
Centro de Estudos em Telecomun., PUC-Rio Rio de Janeiro, Rio de Janeiro, Brazil
Abstract :
This work describes the development of an oscillator prototype at 10GHz that consists of a feedback loop amplifier using a Sapphire loaded cavity and a tunable cylindrical cavity filter. Measurement procedures involving a phase detector circuit technique are described. The phase noise performance obtained at room temperature is -127,32 dBc/Hz at 3KHz and the electrical quality factor (Q) is around 105.
Keywords :
cavity resonator filters; gravitational wave detectors; radiofrequency oscillators; Brazilian gravitational wave detector; Mario Schenberg gravitational wave detector; electrical quality factor; feedback loop amplifier; frequency 10 GHz; frequency 3 kHz; low phase noise oscillator prototype; phase noise performance; sapphire cavity; sapphire loaded cavity; temperature 293 K to 298 K; tunable cylindrical cavity filter; Cavity resonators; Microwave filters; Microwave oscillators; Phase measurement; Phase noise; Temperature measurement; Sapphire Cavity; feed back loop amplifier; ultra low phase noise microwave oscillator;
Conference_Titel :
Microwave & Optoelectronics Conference (IMOC), 2013 SBMO/IEEE MTT-S International
Conference_Location :
Rio de Janeiro
DOI :
10.1109/IMOC.2013.6646435
