Title :
Novel methods for phase noise reduction and harmonic suppression in a planar oscillator circuit based on split ring resonators
Author :
Hwang, Cheol Gyu ; Myung, Noh Hoon
Author_Institution :
Korea Adv. Inst. of Sci. & Technol., Daejeon
Abstract :
In this paper, we describe a novel microwave oscillator incorporating a CPW-based split ring resonator (SRR) as a resonant component of the circuit. The high-quality (Q) factor and spurious-free SRR contribute to phase noise reduction as well as the harmonic tuning of the oscillator circuit in a very small chip area. The fabricated 5.5-GHz oscillator showed an output power of 2.774 dBm with a second harmonic suppression of -43.04 dB and phase noise of -100.8 dBc/Hz at 100 kHz offset. The proposed oscillator is believed to be the first application of a metamaterial to the performance enhancement of a microwave active device.
Keywords :
circuit tuning; metamaterials; microwave oscillators; resonators; CPW-based split ring resonator; circuit resonant component; frequency 100 kHz; frequency 5.5 GHz; harmonic suppression; metamaterial; microwave device performance enhancement; microwave oscillator; oscillator circuit harmonic tuning; phase noise reduction; planar oscillator circuit; Circuit optimization; Harmonics suppression; Microwave circuits; Microwave oscillators; Optical ring resonators; Phase noise; Power generation; RLC circuits; Resonance; Ring oscillators; Oscillator; harmonic suppression; metamaterials; phase noise; split ring resonatoR (SRR);
Conference_Titel :
Microwave Conference, 2006. APMC 2006. Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-4-902339-08-6
Electronic_ISBN :
978-4-902339-11-6
DOI :
10.1109/APMC.2006.4429497
