Related Experiment Video
Updated: Jan 26, 2026

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
Photonic-based microwave hybrid combiner with arbitrarily tunable phase shift and power combining ratio
Abstract:
We report a broadband photonic-based microwave hybrid combiner (PMHC) using a dual-polarization dual-parallel Mach-Zehnder modulator. The broadband PMHC with arbitrarily tunable phase shift and power combining ratio can overcome several limitations of conventional microwave combiners in terms of tunability and bandwidth. By simply adjusting the biases of the modulator, the phase shift and power ratio of the two combined microwave signals are independently, continuously, and freely tunable. The proposed PMHC is theoretically analyzed and experimentally verified. In a proof-of-concept experiment, two sinusoidal microwave waveforms are successfully combined to form rectangular and triangular waveforms, respectively.
Related Concept Videos
Power in a Three-Phase Circuit
Power Distribution in Three-phase and Single Phase Circuits
Single-Phase Power Distribution:
Single-phase circuits are typical in household settings;...
Power System Three-Phase Short Circuits
Impedance Combination
Combination Of Resistors
Stresses under Combined Loadings
The process begins by slicing the tube at critical points and analyzing the internal forces and stress components at these sections, focusing on the centroid. Normal stresses, generated by axial forces and bending moments, are either compressive or tensile and vary across the section from...

