Title :
An extremely low noise, phase lockable, sapphire loaded cavity based microwave oscillator
Author :
Wong, C. ; Miccioli, W.F. ; Insana, D.M. ; Drubin, C.A.
Author_Institution :
Raytheon Co., Tewksbury, MA, USA
Abstract :
This paper demonstrates an extremely low noise, phase-lockable microwave oscillator for next generation coherent radar applications. The design, built with commercially available hardware, is comprised of a high-Q sapphire loaded cavity feedback oscillator, a frequency locked loop for noise degeneration, a narrow band phase locked loop geared for noise measurement using the two-oscillator method and a servo loop for temperature stabilization.
Keywords :
cavity resonators; circuit noise; circuit stability; feedback oscillators; microwave oscillators; phase locked loops; phase locked oscillators; phase noise; radar equipment; sapphire; thermal stability; voltage-controlled oscillators; coherent radar applications; extremely low noise; feedback oscillator; frequency locked loop; high-Q; narrow band PLL; noise degeneration; noise measurement; phase lockable microwave oscillator; phase locked loop; sapphire loaded cavity; servo loop; temperature stabilization; two-oscillator method; Feedback loop; Frequency locked loops; Hardware; Microwave oscillators; Narrowband; Noise generators; Noise measurement; Phase locked loops; Phase noise; Radar applications;
Conference_Titel :
Microwave Symposium Digest, 1999 IEEE MTT-S International
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
0-7803-5135-5
DOI :
10.1109/MWSYM.1999.779432
