Efficiency of microwave combination with normal phase error

With the background of research on high power microwave source power combined efficiency with random phase, the impact of random phase errors with normal probability distribution on power combined efficiency of antenna array was calculated. A modified normal probability density function with bounded phase error was used to analyze the microwave power combined efficiency. As an example, a 1010 elements antenna array with normal probability phase error distribution was used to simulate the relationship between the standard error and the combined efficiency. It shows that the calculation precision was improved obviously with the corrected power combined efficiency, providing reference to the research of high power microwave power combination.