APPARATUS AND METHODS FOR ROTARY TRAVELING WAVE OSCILLATORS
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United States of America
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Dec 16, 2021
app pub date -
May 24, 2021
filing date -
May 24, 2021
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Abstract
Apparatus and methods for rotary traveling wave oscillators (RTWOs) are disclosed. In certain embodiments, an RTWO system include an RTWO ring that carries a traveling wave, a plurality of selectable capacitors distributed around the RTWO ring and each operable in a selected state and an unselected state, and a decoder system that controls selection of the plurality of selectable capacitors based on a frequency tuning code. The frequency tuning code includes a fine tuning code and a coarse tuning code, and the decoder system is operable to maintain a constant number of capacitors that toggle state for each value of the fine tuning code.
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