Inductance enhanced rotary traveling wave oscillator circuit and method

摘要

A plurality of inductance enhanced interweaved rotary traveling wave oscillators (RTWO) is disclosed. Portions of the transmission line conductors are increased in length and run in parallel. Because the currents in these portions travel in the same direction, the inductance of these inductors is increased. By controlling the length of the transmission line conductors in these areas compared to the lengths where the currents in the oscillators travel in opposite directions, the overall impedance of the oscillators can be increased. Increased impedance leads to lower power and lower phase noise for the oscillators. Additionally, the interweaved oscillators are phase-locked to each other.

主权项

1. Interleaved rotary traveling wave oscillators comprising:
a first rotary traveling wave oscillator (RTWO) that includes a first pair of conductors and a first crossover, said first pair of conductors connected with the first crossover to form a first closed loop; and a second rotary traveling wave oscillator (RTWO) that includes a second pair of conductors and a second crossover, said second pair of conductors connected with the second crossover to form a second closed loop; wherein the second closed loop occupies approximately the same physical area as the first closed loop; and wherein the conductors of said first and second crossovers are spaced apart and parallel to each other over a sufficient length that the inductance of the crossovers is increased, wherein the first and second pairs of conductors are interleaved such that the first and second RTWOs are coupled to one another by magnetic fields.