Title :
Thermal characterization of a microwave generator and its effects on the frequency stability
Author :
Morales-Diaz, Adolfo ; Gutierrez-Martínez, Celso ; Torres-Fórtiz, José Alfredo
Author_Institution :
Inst. Nac. de Astrofis. Opt. y Electron. (INAOE), Puebla, Mexico
Abstract :
Phase Locked Loops (PLL)-based microwave generators are highly stable and such a parameter depends strongly on the stability of the reference oscillator and on the stability of the loop filter. In this work a 2.4 GHz microwave generator has been and integrated in our laboratory, using commercial components and devices. The generator has been characterized on its parameters of signal purity, phase noise and frequency stability. Additionally, frequency stability is affected by temperature variations and the maximum thermal frequency drift is an important figure of the generator performance. The thermal performance of microwave oscillators is not often provided by the manufacturers. The frequency stability of our microwave generator has been measured in 0-40 °C range and a 2 KHz frequency drift has been found at 40°C.
Keywords :
frequency stability; microwave filters; microwave generation; microwave oscillators; oscillators; phase locked loops; frequency 2 kHz; frequency 2.4 GHz; frequency drift; loop filter stability; maximum thermal frequency stability; microwave generator performance; microwave oscillator; oscillator stability; phase locked loop; phase noise; signal purity; temperature 0 degC to 40 degC; temperature variation; thermal characterization; thermal performance; Frequency measurement; Generators; Microwave circuits; Microwave integrated circuits; Microwave measurements; Microwave oscillators; Thermal stability; frequency drift; microwave generators; phase locked loops (PLL); thermal stability;
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC), 2011 IEEE
Conference_Location :
Binjiang
Print_ISBN :
978-1-4244-7933-7
DOI :
10.1109/IMTC.2011.5944310
