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Novel methods for phase noise reduction and harmonic suppression in a planar oscillator circuit based on split ring resonators

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2 Author(s)
Cheol Gyu Hwang ; Korea Adv. Inst. of Sci. & Technol., Daejeon ; Noh Hoon Myung

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.

Published in:

Microwave Conference, 2006. APMC 2006. Asia-Pacific

Date of Conference:

12-15 Dec. 2006

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