duffing harmonic oscillator is a common model for nonlinear phenomena in science and engineering. this paper presents he´s energy balance method (ebm) for solving nonlinear differential equations. two strong nonlinear cases have been studied analytically. analytical results of the ebm are compared with the solutions obtained by using he´s frequency amplitude formulation (faf) and numerical solu...

This study presents a microwave oscillator in which an innovative hybrid microstrip and substrate integrated waveguide filter is proposed for phase noise reduction. By virtue of equivalent circuit, the specific topology this clearly revealed verified by both simulation experiment. It can realize third-order elliptic bandpass response with two transmission zeros near passband. Specific be formed...

As a paradigmatic microwave photonic resonant system that is capable of producing high-quality self-sustained oscillations, the optoelectronic oscillator (OEO) has been intensively investigated in recent years, and diversity new insights breakthroughs have proposed demonstrated. In this perspective, we discuss progress, opportunities, challenges OEOs. Specifically, an overview different OEO sch...