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本文评述了工作于1.5GHz和2.0GHz的介质谐振器振荡器,这种振荡器是以加到基本反馈环振荡器结构的两端口谐振器设计为基础的。这种振荡器表现出具有当前先进水平的近载频相位噪声性能。在偏离载频1kHz处,1.5GHz和2.0GHz振荡器的单边带相位噪声电平一般分别为-130dBC/Hz和-120dBc0/HZ。文中还研究了振动灵敏度,对1.5GHz和2.0GHz设计来说,相对频率变化的范围为 (10~(-9)～(~-7))/g。最后,为了说明2.0GHz介质谐振器振荡器设计的静态和动态温度灵敏度,对它进行了测量。测出的静态温度系数约为-1.40×10~(-6)/℃,而动态温度系数在27.5℃时标称为-3000×10~(-9)/℃/s.
This article reviews dielectric resonator oscillators operating at 1.5GHz and 2.0GHz based on the design of two-port resonators that are added to the basic feedback-loop oscillator architecture. This oscillator exhibits near-carrier phase noise performance with the current state of the art. At 1 kHz offset from the carrier frequency, the single-sideband phase noise levels for the 1.5-GHz and 2.0-GHz oscillators are typically -130dBC / Hz and -120dBc0 / Hz, respectively. The vibrational sensitivity is also studied in this paper. The range of relative frequency change is (10 ~ (-9) ~ (-7)) / g for 1.5GHz and 2.0GHz designs. Finally, it was measured to demonstrate the static and dynamic temperature sensitivity of the 2.0GHz dielectric resonator oscillator design. The measured static temperature coefficient is about -1.40 × 10 -6 / ° C while the dynamic temperature coefficient is -3000 × 10 -9 / ° C / s at 27.5 ° C.