Title :
Low cost microwave oscillator using substrate integrated waveguide cavity
Author :
Cassivi, Y. ; Wu, K.
Author_Institution :
Poly-Grames Res. Center, Ecole Polytechnique de Montreal, Canada
Abstract :
A topology is proposed for designing a low-cost microwave oscillator. This new feedback oscillator makes use of a substrate integrated waveguide (SIW) cavity that acts as a frequency selector as well as a feedback-coupling device. The oscillator is stabilized by using an injection-locking scheme. A 12.02-GHz oscillator prototype was designed. Experimental results for phase noise, locking range, and quality factor of the new circuit are presented. An external Q of 178 was measured.
Keywords :
Q-factor; coupled circuits; feedback oscillators; injection locked oscillators; microwave circuits; microwave oscillators; phase noise; 12.02 GHz; dielectric substrate; feedback oscillator; feedback-coupling device; frequency selector; injection-locking scheme; locking range; microwave oscillator; phase noise; quality factor; substrate integrated waveguide cavity; Costs; Feedback; Frequency; Injection-locked oscillators; Microwave devices; Microwave oscillators; Phase noise; Prototypes; Q factor; Topology;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2003.808720
