A modularized high-power ultra-wideband radiation system based on the space-synthesis method

Area of Science:

• Electromagnetics and Applied Physics
• High-Power Systems Engineering

Background:

• Development of high-power ultra-wideband (UWB) radiation systems is crucial for various applications.
• Existing systems face limitations in output parameters like amplitude, pulse repetition frequency (PRF), and rise time.

Purpose of the Study:

• To design and develop a modular high-power UWB radiation system with improved performance.
• To optimize individual components for enhanced power synthesis and radiation efficiency.

Main Methods:

• Utilized the space-synthesis method for system design.
• Optimized transistorized pulser parameters and circuit structure, considering traveling wave effects.
• Implemented collector voltage ramp triggering for improved pulse jitter.
• Integrated an optimized 2x2 antenna array and a gradient microstrip power divider.

Main Results:

• Achieved a peak effective potential (rEp) of 221.8 kV with 20 radiation modules.
• Demonstrated a maximum PRF of 10 kHz.
• Obtained half-power radiation angles of approximately 5° in both E and H planes.

Conclusions:

• The developed modular UWB radiation system shows significant improvements in key performance parameters.
• The design allows for scalability by integrating more modules for higher electric fields.
• The optimized components contribute to efficient power synthesis and wideband radiation.