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The measured LO output frequency (up) and power (down) stability at 86 GHz.

The measured LO output frequency (up) and power (down) stability at 86 GHz.

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Fig. 1. LO system configuration using digital Gunn PLL controller. 
Fig. 2. DPLL controller circuit drawing.
Fig. 4. Housing picture of PLL controller. 
Fig. 6. The measured LO output frequency (up) and power (down)...
+4 Fig. 7. The measured LO output frequency (up) and power (down)...
Phase and Amplitude Drift Research of Millimeter Wave Band Local Oscillator System
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Full-text available
  • Jun 2010
In this paper, we developed a local oscillator (LO) system of millimeter wave band receiver for radio astronomy observation. We measured the phase and amplitude drift stability of this LO system. The voltage control oscillator (VCO) of this LO system use the 3 mm band Gunn oscillator. We developed the digital phase locked loop (DPLL) module for the...
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