ETRI Journal

Electronics and Telecommunications Research Institute (한국전자통신연구원)
권호 표지
DOI QR코드

DOI QR Code

Oscillator with High Harmonic Suppression Using Split Quarterwave Microstrip Resonator

  • Cho, Ho-Yun (Department of Electronic Engineering, Inha University) ;
  • Go, Min-Ho (Department of Electronic Engineering, Inha University) ;
  • Jo, Yun-Hyun (Department of Electronic Engineering, Inha University) ;
  • Park, Hyo-Dal (Department of Electronic Engineering, Inha University)
  • Received : 2010.05.10
  • Accepted : 2010.10.04
  • Published : 2011.02.28
Download PDF
⟨ Previous Next ⟩

Abstract

This letter presents a new type of resonator, namely, the split quarterwave microstrip resonator (SQMR), to improve the poor harmonic suppression and low Q-factors in conventional quarterwave microstrip resonators. An oscillator incorporating the proposed SQMR is designed, fabricated, and tested to demonstrate that, not only the second harmonic suppression, but also the phase noise of the oscillator can be improved. The oscillator with the SQMR shows improved second harmonic suppression of -74.59 dBc and phase noise figure of merit of -169.77 dBc/Hz at 1 MHz offset.

Keywords

References

  1. C.G. Hwang et al., "Novel Methods for Phase Noise Reduction and Harmonic Suppression in a Planar Oscillator Circuit Based on Split Ring Resonators," Proc. APMC, 2006, pp. 619-622.
  2. Q. Xue et al., "Novel Oscillator Incorporating a Compact Microstrip Resonant Cell," Microw. Wireless Compon. Lett., IEEE, vol. 11, May 2001, pp. 202-204. https://doi.org/10.1109/7260.923028
  3. T.-Y Yun et al., "One-Dimensional Photonic Bandgap Resonators and Varactor Tuned Resonators," Proc. IEEE MTT-S. Symp., 1999, pp. 1629-1632.
  4. C.A. Balanis, Antenna Theory Analysis and Design, WILEYINTERSCIENCE.
  5. K. Hosoya et al., "RF HBT Oscillators with Low-Phase Noise and High-Power Performance Utilizing a $(\lambda4{\pm}\delta)$ Open-Stubs Resonator," Circuits Syst. I: Regular Papers, IEEE Trans., vol. 53, Aug. 2006, pp. 1670-1682. https://doi.org/10.1109/TCSI.2006.879045

Cited by

  1. High-Q series coupled microstrip split-ring resonator device vol.24, pp.2, 2011, https://doi.org/10.1080/17455030.2014.904534