A hybrid simulator with novel bicone-wire grid antenna

Area of Science:

• Electromagnetics
• Antenna Theory
• High-Altitude Electromagnetic Pulse (HEMP) Simulation

Background:

• High-altitude electromagnetic pulse (HEMP) simulators are crucial for studying electromagnetic effects.
• Improving the electric field waveform quality of HEMP simulators is an ongoing challenge.
• Existing simulators may lack optimal mobility and waveform characteristics.

Purpose of the Study:

• To design and analyze a novel bicone-wire grid antenna HEMP simulator with enhanced mobility.
• To investigate the impact of aspect ratios and cone structures on electric field characteristics.
• To validate simulation results through experimental testing of the improved simulator.

Main Methods:

• Simulation and experimental studies were conducted on a bicone-wire grid antenna.
• A new simulator design utilized skeletonized cones instead of solid cones.
• Analysis focused on electric field waveforms and distribution characteristics under varying aspect ratios and cone structures.

Main Results:

• The new simulator generates a HEMP environment compliant with IEC standards within a 5 × 6 × 2 m³ area.
• Optimal waveform quality and working space were achieved with specific aspect ratios.
• Employing skeletonized cones negligibly affected electric field waveforms while significantly boosting simulator mobility.

Conclusions:

• The developed bicone-wire grid antenna HEMP simulator offers improved mobility and meets IEC standards.
• Skeletonized cone design is a viable strategy for enhancing HEMP simulator performance.
• This advancement contributes to more effective HEMP effects research and testing.