RF Local Oscillators for Future Frequency Standards
For some years, there has been a need for much better oscillators in frequency standards applications. Recent progress in resonator and oscillator understanding and design leads to overcome most previous limitations. As a result, a single crystal oscillator can now provide, at the same time, excellent short term stability and excellent long term drift. Fast warm-up can be obtained together with other excellent characteristics. Also impressive (and necessary) is the achievement of very small g sensitivity (some 10−11/g).
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