【作者】 胡蒙筠； 周健义； 于志强；

【Author】 HU Mengyun;ZHOU Jianyi;YU Zhiqiang;School of Information Science and Engineering, Southeast University;Purple Mountain Laboratories;

【机构】 东南大学信息科学与工程学院； 紫金山实验室；

【摘要】 本文设计了一种基于空气基片集成波导的负阻型X波段振荡器。利用中间挖空的介质基板代替实心介质基板,与传统的基片集成波导谐振腔相比,其可以有效的减少损耗,提高品质因数,优化频率选择性,因此用空气基片集成波导设计的振荡器可以实现较低的相位噪声。利用电磁仿真软件分析了振荡器的性能,结果显示,振荡器工作在9.98GHz,输出功率为7.2dBm,其在1MHz频率偏移处的相位噪声为-143dBc/Hz,品质因数(FOM)经计算为-198.9dBc/Hz。更多还原

【Abstract】 In this paper, a reflective X-band oscillator based on air-filled substrate integrated waveguide(AFSIW)is designed. Compared with the traditional substrate integrated waveguide(SIW) resonator, it can effectively reduce the loss, improve the quality factor, and optimize the frequency selectivity by using the hollowed-out dielectric substrate to replace the solid dielectric substrate. Therefore, oscillators designed with AFSIW can achieve lower phase noise. The performance of the oscillator was analyzed using electromagnetic simulation software. The results show that the oscillator operates at 9.98GHz, the output power is 7.2dBm, its phase noise at frequency offset of 1MHz is-143dBc/Hz, and the figure of merit(FOM) is calculated as-198.9dBc/Hz.更多还原