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OwnerThomas Musch, Burkhard Schiek +1inventors
InventorsThomas Musch, Burkhard Schiek, Michael Gerding
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A frequency synthesizer, especially for use with a time-base generator of a fill-level meter employing the radar principle is designed to output a first frequency signal and a second frequency signal at mutually slightly different frequencies. The synthesizer incorporates a reference oscillator operating at a reference frequency and a control oscillator regulated at a control frequency. A first frequency divider with a division factor V1 is connected in line with the reference oscillator and a second frequency divider with the division factor V2 is connected in line with the control oscillator, which frequency dividers serve to output the first frequency signal and the second frequency signal, respectively. The result is a stable frequency synthesizer with a large phase-control bandwidth and consequently an extremely short transient response time as well as broad-band phase-noise suppression. A method for operating the synthesizer is also disclosed.
A frequency synthesizer, especially for use with a time-base generator of a fill-level meter employing the radar principle, for outputting a first frequency signal and a second frequency signal at mutually slightly different frequencies, said synthesizer incorporating a reference oscillator operating at a reference frequency and a control oscillator regulated at a control frequency, the improvement wherein a drive unit is provided for the intermittent operation of the frequency synthesizer with a transient rise time of less than 50 ms.
A method for operating a frequency synthesizer especially for use with a time-base generator of a fill-level meter employing the radar principle, for outputting a first frequency signal and a second frequency signal at mutually slightly different frequencies and incorporating a reference oscillator operating at a reference frequency and a control oscillator regulated at a control frequency, said method including the step of operating the frequency synthesizer intermittently with a transient rise time of less than 50 ms.
Dependencies are inferred from the claim text.