TRAVELING WAVE BASED THz SIGNAL GENERATION SYSTEM and METHOD THEREOF

摘要

TeraHertz signal generation system based on traveling-wave oscillators providing extraction of orders of magnitude higher oscillation frequencies resulting in frequency multipliers and THz transceivers that can generate, transmit and sense THz frequency signals for sensing/imaging.

主权项

1. A Traveling-Wave Frequency Multiplier [TWFM] comprising
a distributed wave oscillator providing accurate multiple phases of an oscillation; said oscillator further 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; a plurality of shorted transmission line stubs to provide biasing said cross-coupled amplifiers; a plurality of resistors in series with said transmission line stubs to eliminate low-frequency mode of oscillation; 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; a plurality of symmetric tapping points to tap a plurality of corresponding symmetric phases to affect higher order harmonic frequency extraction; a plurality of summing points of said symmetric phases; and a plurality of matching networks for combining said symmetric phases to affect further frequency multiplication.