X-band HPM feed total radiation power measurement using array method

The paper studied the array method for the measurement of X-Band high power microwave(HPM) feed total radiation power. The radiation field of an X-band HPM feed was simulated to determine three key parameters of surface integral method, and the measurement error caused by the integral method was estimated. An array with 8 probes was designed to enhance the power density measurement precision and stability, with each probe carefully tested and calibrated. The measurement result shows that, the pulse waveforms obtained by different probes are almost the same; the power density measurement difference of 3 shots obtained by the same probe is within ±0.1 dB; the power density measurement difference of the 8 different probes is within ±0.3 dB. Cold and hot tested patterns of the feed agree wit