Oscillator Phase-Noise Reduction Using High-Qsc Active Giuseppe Peano Fractal Resonators

In this letter, a low phase-noise (PhN) oscillator is designed, implemented, and experimentally tested using an active and compact Giuseppe Peano fractal resonator as a filter with high-quality factor (QF) which acts as the frequency stabilization and selection element. The oscillation frequency corresponds to the frequency response peak of the complex QF filter. Due to the characteristics of this active filter, the oscillator PhN is highly reduced. The oscillator, operating at 3.36 GHz with 15-dBm output power, demonstrates a measured PhN of −131.5 dBc/Hz at 100-kHz offset frequency and 151.4 dBc/Hz at 1-MHz offset frequency. It is shown that the proposed oscillator outperforms the state-of-the-art microwave planar oscillators in reducing the PhN.

[1]  Yu Liu,et al.  Low Phase Noise Concurrent Dual-Band Oscillator Using Compact Diplexer , 2015, IEEE Microwave and Wireless Components Letters.

[2]  Mehdi Hamidkhani,et al.  A low phase noise microwave oscillator based on a high Q SIW cavity CSRR band-pass filter , 2016 .

[3]  Brijesh Iyer,et al.  3.36-/15.24-GHz concurrent dual-band oscillator for WiMAX/WLAN applications , 2013, IEEE MTT-S International Microwave and RF Conference.

[4]  Amir Mortazawi,et al.  Oscillator phase-noise reduction using low-noise high-Q active resonators , 2010, 2010 IEEE MTT-S International Microwave Symposium.

[5]  Mehdi Hamidkhani,et al.  A Dual-Band Low Phase Noise Microwave Oscillator Based on a Novel High Q Complementary Split Ring Resonator , 2016 .

[6]  Chao-Hsiung Tseng,et al.  Design of Low Phase-Noise Microwave Oscillator and Wideband VCO Based on Microstrip Combline Bandpass Filters , 2012, IEEE Transactions on Microwave Theory and Techniques.

[7]  Homayoon Oraizi,et al.  Miniaturized UWB Monopole Microstrip Antenna Design by the Combination of Giusepe Peano and Sierpinski Carpet Fractals , 2011, IEEE Antennas and Wireless Propagation Letters.

[8]  Xiaohong Tang,et al.  A Novel Low Phase Noise Oscillator Using Stubs Loaded Nested Split-Ring Resonator , 2017, IEEE Microwave and Wireless Components Letters.

[9]  Chulhun Seo,et al.  High-Q metamaterial interdigital transmission line based on complementary spiral resonators for low phase noise voltage-controlled oscillator , 2012, IET Circuits Devices Syst..