Helical antenna response characteristics under the irradiation of electromagnetic pulse environment with different incidence angle

pitch and turns are studied

some regularity of understanding is summarized. The results indicate that the coupling of the voltage waveform for helical antenna under the irradiation of electromagnetic pulse is the damping wave

the coupling voltage increases with the increase of incident angle

98 % of the coupling energy mainly concentrated within 100 MHz. Coupling voltage is able to produced nearly50 k W of instantaneous power in the 50 Ω load port when the incident angle is 90°

the sedimentary energy can reach 0. 7 m J; The increase of pitch and turns of helical antenna will increase the coupling voltage

instantaneous power and sedimentary energy. Its decay time decreases with the increase of pitch

but increases with the increase of the turn. Its resonant frequency will not change with the changes of the pitch

but decreases with the increase of turn. In addition

the experiment results show that the simulation of high precision. The results for the antenna system of electromagnetic pulse protection technique has certain reference value.