Terahertz injection-locked radiator
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United States of America Patent
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Mar 20, 2018
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Apr 20, 2017
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Apr 20, 2017
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Abstract
Systems and methods which provide injection-locked circuit configurations for radiating signals in the terahertz frequency range with improved phase noise and signal output power are described. Embodiments of the invention provide an injection-locked terahertz radiator system comprising a half-quadrature voltage controlled oscillator (HQVCO), a plurality of injection-locked frequency quadruplers (ILFQs), and antenna elements. In operation according to embodiments, injection-locking provided by the ILFQs may be utilized to facilitate individual optimization of the output power and the phase noise. Intrinsic-delay compensation and harmonic boosting techniques may be utilized in configurations of the foregoing injection-locked terahertz radiator system to optimize the phase noise of the HQVCO and the output power of the ILFQs, respectively. Embodiments of an injection-locked terahertz radiator system herein are implemented as a fully integrated solution with compact form factor, providing high reliability and low cost.
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