Frequency tuning method in rotary-based oscillator
AssigneeSamsung Electronics Co., Ltd.
InventorsTsung-Hao Chuang, Daquan Huang, Michael Chen, Shenggang Dong
Life of this patent
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Abstract
The present disclosure relates to an oscillator apparatus comprising a differential transmission line forming a closed loop, a plurality of active core components that are electrically connected to the differential transmission line and that are configured to compensate for loss in the differential transmission line, a plurality of tuning elements that are electrically coupled with the differential transmission line, and a processor configured to control each tuning element of the plurality of tuning elements to activate or deactivate such that an effective electrical length of the differential transmission line is changed.
Claims17
An oscillator apparatus comprising:
- a differential transmission line comprised of a plurality of segments forming a closed loop;
- a plurality of voltage controlled oscillators that are electrically connected to the differential transmission line and that are configured to compensate for loss in the differential transmission line;
- a plurality of frequency multipliers, each of which is electrically connected to an output of a respective segment of the plurality of segments, each of the frequency multipliers configured to combine signals traveling through each of a pair of legs of the differential transmission line at the output of the respective segment to generate an output having a phase that is shifted relative to a phase of each of the signals and having a frequency that is a multiple of a frequency of the signals;
- a plurality of tuning elements that are electrically coupled with the differential transmission line;
- and
- a processor configured to control each tuning element of the plurality of tuning elements to activate or deactivate such that an effective electrical length of the differential transmission line is changed.
An oscillator apparatus comprising:
- a differential transmission line comprised of a plurality of segments forming a closed loop;
- a plurality of voltage controlled oscillators that are electrically connected to the differential transmission line and that are configured to compensate for loss in the differential transmission line;
- a plurality of frequency multipliers that are electrically connected to the differential transmission line at an output of a respective segment of the plurality of segments, each of the frequency multipliers having a multiplication factor and being configured to combine signals traveling through each of a pair of legs of the differential transmission line at the output of the respective segment such that an output of the respective frequency multiplier has a phase that is shifted relative to a phase of each of the signals and has a frequency that represents a frequency of the signals multiplied by the multiplication factor, in order to extend a frequency tuning range of the oscillator apparatus;
- a plurality of tuning elements that are electrically coupled with the differential transmission line;
- and
- a processor configured to control each tuning element of the plurality of tuning elements to activate or deactivate such that an effective electrical length of the differential transmission line is changed.
A method of operating an oscillator apparatus, comprising:
- compensating for loss, by a plurality of voltage controlled oscillators, in a differential transmission line comprised of a plurality of segments forming a closed loop;
- combining, by a plurality of frequency multipliers that are each electrically connected to an output of a respective segment of the plurality of segments, signals traveling through each of a pair of legs of the differential transmission line at the output of the respective segment to generate an output having a phase that is shifted relative to a phase of each of the signals and having a frequency that is a multiple of a frequency of the signals;
- and
- activating or deactivating, by a processor, each tuning element of a plurality of tuning elements such that an effective electrical length of the differential transmission line is changed, wherein the plurality of tuning elements are electrically coupled to the differential transmission line.
Dependencies are inferred from the claim text.