LOW PHASE-NOISE PLANAR OSCILLATORS USING HIGH-Q SIW BANDPASS FILTER

作者：Zhao, Shiwei^*; Tang, Zongxi; Dai, Wei; Bao, Lifen

来源：Microwave and Optical Technology Letters, 2011, 53(7): 1566-1569.

DOI：10.1002/mop.26047

• low phase noise
• quality factor
• resonator
• SIW filter

A low phase-noise planar X-band oscillator using high-Q substrate integrated waveguide (SIW) bandpass filter within its feedback loop is presented. The SIW filter as a frequency stabilization element is used in planar oscillator, and the phase noise of oscillator is significantly reduced by the group-delay peaks formed at the passband edges of the high-Q SIW filter. A 9-GHz oscillator using the optimized high-Q SIW filter in the feedback loop is designed and tested. The measured phase noise of planar oscillator is 115.3 dBc/Hz at 100-KHz offset frequency with 9.97-dBm as output power.

• 出版日期2011-7
• 单位电子科技大学