Oscillator arrangement with improved phase-noise properties
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsJan SANDBERG, Daniel SJÖBERG, Bengt MADEBERG, Mikael HÖRBERG
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Abstract
The present disclosure relates to oscillator arrangement comprising an output port adapted to output an output signal with an output frequency (fout), an in loop oscillator that is adapted for an in loop oscillator frequency (fosc) and an additional oscillator that is adapted for an additional oscillator frequency (foscA). The output frequency (fout); exceeds the in loop oscillator frequency (fosc) and the additional oscillator frequency (foscA), is dependent on both the in loop oscillator frequency (fosc) and the additional oscillator frequency (foscA), and is adapted to control the in loop oscillator frequency (fosc) via a feed-back loop.
Claims20
An oscillator arrangement comprising an output port configured to output an output signal with an output frequency (fout), an in loop oscillator that is configured for an in loop oscillator frequency (fosc) and an additional oscillator that is configured for an additional oscillator frequency (foscA), the output frequency (fout):
- exceeding the in loop oscillator frequency (fosc) and the additional oscillator frequency (foscA);
- is dependent on both the in loop oscillator frequency (fosc) and the additional oscillator frequency (foscA);
- and
- is configured to control the in loop oscillator frequency (fosc) via a feed-back loop.
A method for configuring an oscillator arrangement, the method comprising:
- providing an output port adapted to output an output signal with an output frequency (fout);
- providing an in loop oscillator that is adapted for an in loop oscillator frequency (fosc);
- and
- providing an additional oscillator that is adapted for an additional oscillator frequency (foscA), the output frequency (fout):
- exceeding the in loop oscillator frequency (fosc) and the additional oscillator frequency (foscA);
- is dependent on both the in loop oscillator frequency (fosc) and the additional oscillator frequency (foscA);
- and
- is used for controlling the in loop oscillator frequency (fosc) via a feed-back loop.
Dependencies are inferred from the claim text.