Agilent Technologies, "Product Note 11729C-2-Phase noise characterization of microwave oscillator
," 2007, http://www.agilent.com/.
In the experiments, the interprobe distance remained fixed, and the ratio l/[[lambda].sub.g] was varied by varying the microwave oscillator
They replace the oscillating quartz by a microwave oscillator
, which has been stabilized with the aid of a laser to such an extent that its noise becomes insignificant for fountain operation.
Nowadays, the linear simulation, as a first approximation, is widely used for RF and microwave oscillator
Determining the total composite phase noise is a complex calculation requiring knowledge of the phase noise of the reference and microwave oscillators
, the reference multiplication efficiency factor (usually 1 to 3 dB above the ideal 20 log N factor) and the phase-locked loop frequency response (the output noise ([[PHI].sub.out]) as a function of the noise injected at the reference ([[PHI].sub.ref])) and the noise injected by the microwave oscillator
Nowadays, the linear simulation, as first approximation, is widely used for RF and microwave oscillator
In addition, a novel DGS microwave oscillator
is demonstrated to show a design example fully based on the proposed equivalent circuit.
To evaluate the suitability of the transistor for designing a very low noise microwave oscillator
, it must be understood that there are three distinct but correlated types of noise measurements.
(6.) Steve Hamilton, "Microwave Oscillator
Circuits," Microwave Journal, Vol.
Although the example design is application specific, the methods demonstrated apply to microwave oscillator
design in general.
Initially, the values of the external circuit elements are unknown and for a given microwave oscillator
with a required frequency of oscillation it is difficult to directly choose their values without any preliminary calculation.
design generally represents a complex problem.