An Improved Tem Antenna Designing Used in Electromagnetic Pulse Directed Radiation

Abstract

Abstract-As we all know, traditional transmission electromagnetic pulse simulator has restricted test space problem. This paper proposes a new directed radiation fast rising time electromagnetic pulse (FREMP) simulator scheme which is based on transverse electric magnetic (TEM) wave antenna of a wire edge curl structure. Through numerical simulation, we study the influence of the parameters of wire edge curl TEM horn antenna and the effect of absorption resistance on radiation field. The simulation results show that the wire edge curl TEM horn antenna can effectively improve the ability of low frequency radiation. It can provide a theoretical support for developing FREMP simulator. We also demonstrate the feasibility of developing FREMP simulator using wire edge curl TEM horn antenna through experiments. Finally, the experimental results show that the radiation field of FREMP simulator developed by wire edge curl TEM horn antenna can meet high-altitude nuclear electromagnetic pulse (HEMP) requirements.

Mutual Coupling Optimization of Compact Microstrip Array Antenna

“…When dielectric layer size and material are different, the three coupling mechanisms are likely to play a leading role. Reference [9] studied the relationship between mutual coupling and array element distance. With the increase of distance, the effect of the three coupling mechanisms on antenna decreases.…”