Analysis of hydrogen maser frequency drift due to possible drifts in load VSWR and phase angle of reflection coefficient
Abstract
Theoretical equations are derived for calculating the effects of local VSWR and reflection coefficient phase angle drifts on hydrogen maser frequency stability. Sample calculations made for a typical JPL maser show that under special load conditions, a VSWR drift of 0.000075/h or phase angle drive of 0.01 deg/h can produce a frequency drift of (10 to the -14th power f sub 0) Hz/h where f sub 0 is the maser frequency of approximately 1.42 x 10 to the 9th power Hz.
- Publication:
-
The Deep Space Network
- Pub Date:
- June 1978
- Bibcode:
- 1978dsn..nasa..245B
- Keywords:
-
- Deep Space Network;
- Frequency Stability;
- Masers;
- Phase Shift;
- Cavity Resonators;
- Differential Equations;
- Hydrogen;
- Oscillators;
- Lasers and Masers