System and method for signal generation

摘要

A high-power broadband radiation system and method are disclosed. The system includes an array of harmonic oscillators with mutual coupling through quadrature oscillators. Based on a self-feeding structure, the presently disclosed harmonic oscillators simultaneously achieve optimum conditions for fundamental oscillation and 2nd-harmonic generation. The signals at the second harmonic radiate through on-chip slot antennas, and are in-phase combined inside a hemispheric silicon lens attached at the backside of the chip. In some embodiments, the radiation of the system can also be modulated by narrow pulses generated on chip, thereby achieving broad radiation bandwidth.

主权项

1. A device for signal generation, comprising:
a quadrature oscillator having a first phase output at a first phase and a second phase output at a second phase which is different from the first phase; a coupled oscillator pair operating at a fundamental frequency, comprising:
a first oscillator connected to the first phase output of the quadrature oscillator and configured to provide a first signal at a first output, wherein the first signal comprises a harmonic of the fundamental frequency; anda second oscillator connected to the second phase output of the quadrature oscillator and configured to provide a second signal at a second output, wherein the second signal comprises a harmonic of the fundamental frequency which is the same harmonic as the first signal, and the first and second signals are differential signals; a first antenna in electrical communication with the first output; a second antenna in electrical communication with the second output; and a switch for pulse modulation of the first and second signals, the switch connecting the first output to the first antenna and the second output to the second antenna.