Skip to main content Accessibility help

A compact low-phase noise oscillator with superior harmonic suppression characteristics based on novel nested split-ring resonator (NSRR)

  • Yong Liu (a1), Neng Xie (a1), Xiaohong Tang (a1) and Fei Xiao (a1)


In this paper, a novel microwave oscillator incorporating miniaturized nested split-ring resonators is proposed. The high-quality (Q) factor and wide spurious-free band of the NSRR contribute to low-phase noise and high-harmonic suppression of the proposed oscillator circuits. In addition, the NSRR is featured by compact size of 0.12λg × 0.12λg, where λg is the guided wavelength of resonance frequency. The fabricated 2.4 GHz oscillator has an output power of 11.7 dBm with 5 V DC supply and 10 mA current consumption. The second harmonic suppression is −45.49 dBc, the phase noise is −110 dBc/Hz @100 kHz, and the DC–RF conversion efficiency is measured as 30%.


Corresponding author

Corresponding author: Y. Liu Email:


Hide All
[1] Jimenez-Martin, J.L.; Gonzalez-Posadas, V.; Parra-Cerrada, A.; Segovia-Vargas, D.: Transpose return relation method for designing low noise oscillators. Prog. Electromagn. Res., 127 (2012), 297318.
[2] Pendry, J.B.; Holden, A.J.; Robbins, D.J.; Stewart, W.J.: Magnetism from conductors and enhanced nonlinear phenomena. IEEE Trans. Microw. Theory Tech., 47 (1999), 20752084.
[3] Smith, D.R.; Padilla, W.J.; Vier, D.C.; Nemat-Nasser, S.C.; Schultz, S.: Composite medium with simultaneously negative permeability and permittivity. Phys. Rev. Lett., 84 (2000), 41844187.
[4] Baena, J.D.; Bonache, J.; Martin, F.; Sillero, R.M.; Falcone, F.; Lopetegi, T.: Equivalent-circuit models for split-ring resonators and complementary split-ring resonators coupled to planar transmission lines. IEEE Trans. Microw. Theory Tech., 53 (2005), 14511461.
[5] Montero-de-Paz, J.; Ugarte-Munoz, E.; Hettaiz-Martinez, F.J.: Multifrequency self -diplexed single patch antennas loaded with split ring resonators. Prog. Electromagn. Res., 113 (2011), 4766.
[6] Zhang, F.; Zhao, Q.; Sun, J.; Zhou, J.; Lippens, D.: Coupling effect of split ring resonator and its mirror image. Prog. Electromagn. Res., 124 (2012), 233247.
[7] Carbonell, J.; Lheurette, E.; Lippens, D.: From rejection to transmission with stacked arrays of split ring resonators. Prog. Electromagn. Res., 112 (2011), 215224.
[8] Nornikman, H.; Ahmad, B.H.; Abdul Aziz, M.Z.A.; Malek, F.; Imran, H.; Othman, A.R.: Study and simulation of an edge couple split ring resonator (Ec-Srr) on truncated pyramidal microwave absorber. Prog. Electromagn. Res., 127 (2012), 319334.
[9] Kim, D.-O.; Jo, N.-I.; Jang, H.-A.; Kim, C.-Y.: Design of the ultrawideband antenna with a quadruple-band rejection characteristics using a combination of the complementary split ring resonators. Prog. Electromagn. Res., 112 (2011), 93107.
[10] Melik, R.; Unal, E.; Perkgoz, N.K.; Santoni, B.; Kamstock, D.; Puttlitz, C.; Demir, H.V.: Nested metamaterials for wireless strain sensing. IEEE J. Sel. Top. Quantum Electron., 16 (2010), 450458.
[11] Liu, Y.; Tang, X.H.; Zhang, Z.X.; Huang, X.L.: Novel nested split-ring-resonator (SRR) for compact filter application. Prog. Electromagn. Res., 136 (2013), 765773.
[12] Kajfez, D.; Wheless, W.P.: Invariant definitions of the unloaded Q factor. IEEE Trans. Microw. Theory Tech., 34 (2003), 840841.
[13] Naji, A.; Warr, P.: Independence of the unloaded Q of a planar electromagnetic resonator from its shape. IEEE Trans. Microw. Theory Tech., 60 (2012), 23702377.
[14] Kakhki, M.A.; Neshati, M.H.: Experimental Investigation of a Dual Band-Reject Filter Using C-Shaped DGS with Improved Q-factor, in 2010 Fifth Int. Symp. on Telecommunications (IST'2010), Tehran, Iran, 2010.
[15] Hajimiri, A.; Lee, T.H.: The Design of Low Noise Oscillator, Kluwer, Norwell, MA, 1999.
[16] Li, Z.B.; Kenneth, K. O: A low-phase noise and low-power multiband CMOS voltage-controlled oscillator. IEEE J. Solid-State Circuits, 40 (2005), 12961302.
[17] Wang, X.Y.; Fard, A.; Andreani, P.: Phase noise analysis and design of a 3-GHz bipolar differential colpitts VCO, in Proceedings of ESSCIRC 2005: 31st European Solid-State Circuits Conf., Grenoble, France, 2005.
[18] Maharjan, R.K.; Kim, N.Y.: InGaAs/GaAs HBT based MMIC differential VCO for s-band satellite communication applications, in IEEE Int. Symp. on Microwave, Antenna Propagation and EMC Technologies for Wireless Communications, Beijing, China, 2009.
[19] Mendes, L.; Vaz, J.C.; Rosario, M.J.: A low power low phase noise wide switched tuned band LC VCO for S band applications, in Proc. of 2008 Asia Pacific Microwave Conf., Hong Kong, China, 2008.


A compact low-phase noise oscillator with superior harmonic suppression characteristics based on novel nested split-ring resonator (NSRR)

  • Yong Liu (a1), Neng Xie (a1), Xiaohong Tang (a1) and Fei Xiao (a1)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed