2019-02-222019-02-222018-10-23Chen, Charles and Babakhani, Aydin, "Wireless synchronization of mm-wave arrays." Patent US10110370B2. issued 2018-10-23. Retrieved from <a href="https://hdl.handle.net/1911/105164">https://hdl.handle.net/1911/105164</a>.https://hdl.handle.net/1911/105164Systems and methods providing wireless synchronization of wave arrays may include an antenna that receives a wireless injection signal and another antenna that radiates a locked wave signal corresponding to the injection signal. In some embodiments, these systems may also provide a low noise amplifier, voltage controlled oscillator (VCO), buffer amplifier(s), phase shifter, and/or multi-stage amplifier. In some embodiments, the injection signal may be provided on an even harmonic, and the intended transmission frequency signal is on an odd harmonic of the locked signal. The substrate thickness may be designed to radiate electromagnetic waves in odd harmonics of the locked signal. In yet another embodiment, polarization of a receiving antenna may be orthogonal to a transmitter antenna.20engUtility patentUS10110370B2