An oscillator with low phase noise and superior harmonic suppression characteristics based on uniplanar compact split ring resonators
✍ Scribed by Cheol Gyu Hwang; Noh Hoon Myung
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 116 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
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 2^nd^‐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. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 938–940, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21525