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Bulk current injection (BCI) research has been done to complicated cable with ferromagnetic shielding layer. The nonlinear effect of shields has been investigated experimentally based on the built test system. Pulse current with different values have been injected to test the characteristic of two types of shielded cables. Test result show the nonlinear characteristic of transfer impedance obviously...
The unconditionally stable difference time domain (FDTD) method based on the Weighted Laguerre polynomial (WLP) is developed recently for its Marching-on-in-Order scheme. Due to its unconditional stability, Courant-Freidrich-Levy (CFL) limitation can be circumvented resulting in less simulation time compared to the conventional FDTD. This is particularly advantageous for multiscale structures. In...
A low-profile antenna with end-fire radiation and vertical polarization is presented in this paper. It employs a top-open dielectric-filled waveguide to propagate the electromagnetic waves, which is radiated by gradually deducing the height of the waveguide. The proposed antenna has a low profile of 0.1λL (λL is the wavelength at the lowest operating frequency), and is embedded in a large ground plane...
In order to study the direct effect of carbon fiber reinforcement plastic (CFRP) material by lightning current destroy, damage experiment and analysis have been investigated in this paper. CFRP laminate damage is tested under different artificial lightning waveform with same peak value and different peak value with same rise-time and half-width, respectively. The influence of lightning parameters...
To remove the interference of strong environmental noise, fiber-optic transmission system is usually used in the measurement of electromagnetic pulse (EMP). However, due to the thermo-noise in fiber optic emitting and receiving circuits, there are still some inevitable noise in the transmission system. This effect limits the use of the EMP measurement system in shielded enclosures. An improved signal...
In order to study the electromagnetic pulse coupling effect of multi-conductor shielded cable, a five-parallel-line test structure with free adjusting space is designed for pulse current injection test. The pulse source with nano-second rising time is also designed to produce large current. Several kinds of multi-conductor cables are tested in the established system and their surface transfer impedance...
The proposed DF-FDTD method can be used to build a model for the transfer impedance. According to this transfer impedance model and the induced current of the outer conductor, the induced current and voltage of the inner conductor can be obtained by the transmission line (TL) model. This work can provide the theory support for the protection of the inner conductor from the EMP field.
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