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US 2013/0157584 A1Published application
Pumped distributed wave oscillator system
AssigneeWaveworks, Inc.
InventorsAhmet Tekin, Ahmed Emira
Life of this patent
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Abstract
A Pumped Distributed Wave Oscillator (PDWO) that provides a high purity accurate signal source with multiple oscillation phases. High-accuracy, high-frequency oscillation phases open paths to high performance phased-array transceiver design. Additional noise-canceling, noise-shaping circuit techniques result in enhanced sensitivity in radio design.
Claims20
A Quarter-Pumped Distributed Wave Oscillator (QPDWO) system comprising
- two or more independent electrical conductors forming transmission line loops of a differential medium for traveling wave oscillations;
- a plurality of cross-coupled inverting amplifiers distributed along said transmission line loops, said inverting amplifiers further comprising non-complementary metal oxide or bipolar devices;
- a plurality of quarter wave (λ/4) shorted transmission line stubs to provide biasing said cross-coupled inverting amplifiers;
- a plurality of resistors in series with the biasing (λ/4) stub to eliminate low-frequency lumped mode of oscillation;
- and
- a plurality of varactors to provide tuning for high frequency, high-bandwidth oscillations in the range of at least from about sub-GHz to about THz.
3 more elements
An Inductively-Pumped Distributed Wave Oscillator (IPDWO) system comprising
- two or more independent electrical conductors forming transmission line loops of a differential medium for traveling wave oscillations;
- a plurality of cross-coupled inverting amplifiers distributed along said transmission line loops, said inverting amplifiers further comprising non-complementary metal oxide or bipolar devices;
- a plurality of inductors to provide biasing said cross-coupled inverting amplifiers;
- a plurality of resistors in series with the biasing inductors to eliminate low-frequency lumped mode of oscillation;
- a plurality of parallel capacitors forming Resonant-Pumped Distributed Wave Oscillator (RPDWO) to create resonance at a core traveling wave frequency at bias injections points;
- a plurality of varactors to provide tuning for high frequency, high-bandwidth oscillations at least in the range from about sub-GHz to about THz;
- and
- a lumped traveling wave oscillator system where discrete inductors rather than transmission lines are used for the wave oscillation loop path elements.
5 more elements
A high frequency phased-array transceiver system comprising
- a multi-phase low-noise signal source comprising Trigger-mode Distribute Wave Oscillator (TMDWO), Forced-Mode Distributed Wave Oscillator (FMDWO) or Pumped Distributed Wave Oscillator (PDWO);
- a front-end phase-shift system coupled with said multi-phase signal source;
- a back-end phase-shift system coupled with quadrature phases of said multi-phase signal source;
- a radio front-end topology configured to utilize said multi-phase signal source;
- and
- a low-noise multi-element phased-array receiver system coupled with said radio front-end.
3 more elements
Dependencies are inferred from the claim text.