Studies on the digital simulation of microwave multichannel power synthesis

In the actual microwave multichannel power synthesis system or circuit, especially when a wide frequency band is at work, the system efficiency (i.e. the synthesized power efficiency) will be influenced by many factors, such as the amplitude and phase of the branch power source, the standing wave at the port of synthesizer, the branch spacing accurateness, the branch transmission power amplitude, the phase difference and ohmic loss. In the paper, strict computing formulas in relation to these factors are given, and according to these formulas, the amplitude of the branch power source and the distribution of the value of phase difference in are numerically adapted and the typical three-dimensional efficiency curve and the lowest efficiency curve are given