A kind of high-rEp and high pulse-repetition-rate ultra-wideband radiation system

Avalanche transistors are widely used in Marx circuits to generate high-voltage pulses with a high pulse-repetition-rate. Since their power capacity is limited, for high-power ultra-wideband radiation systems based on solid-state pulsers, it is necessary to synthesis multiple modules simultaneously to enhance the total power. In this paper, a kind of high-$r E_{p}$ and high pulse-repetition-rate ultra-wideband radiation system is designed and developed based on space synthesis method. The system has 12 radiation modules, while each module consists of a solid-state pulser and a $2 \times 2$ combined antenna. The $r E_{p}$ of the system is 25 kV measured at 12 m, and the maximum PRF of the system is 100 kHz. Its polarization direction could be adjusted by a built-in motor.