Title :
Transmission characteristics and EMP response in axisymmetric multi-stage cascaded waveguides
Author :
Xu, Jin-Jing ; Yin, Wen-Yan ; Mao, Jun-Fa
Author_Institution :
Center for Microwave & RF Technol., Shanghai Jiao Tong Univ., Shanghai
Abstract :
This paper presents a method for computing input admittance and transient voltage responses in axisymmetric multi-stage cascaded waveguides, excited by a phi-independent EM source. A set of coupled integral equations is derived to determine the fields in the waveguide apertures. The method of moments (MoM) and the equivalence principle are employed to enhance numerical analysis, with electric field integral equations (EFIE) and magnetic field integral equations (MFIE) together with connection algorithm formulated in the frequency domain. The transient responses of various multi-stage cascaded waveguides with multiple discontinuities are obtained through inverse FFT over wide frequency ranges.
Keywords :
electric admittance; electric field integral equations; electromagnetic pulse; fast Fourier transforms; magnetic field integral equations; method of moments; transients; waveguide theory; EMP response; MoM; axisymmetric multistage cascaded waveguides; coupled integral equations; electric field integral equations; equivalence principle; input admittance response; inverse FFT; magnetic field integral equations; method of moments; transient responses; transient voltage response; Admittance; Apertures; Couplings; EMP radiation effects; Frequency domain analysis; Integral equations; Magnetic fields; Moment methods; Numerical analysis; Voltage;
Conference_Titel :
Electromagnetic Compatibility and 19th International Zurich Symposium on Electromagnetic Compatibility, 2008. APEMC 2008. Asia-Pacific Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-981-08-0629-3
Electronic_ISBN :
978-981-08-0629-3
DOI :
10.1109/APEMC.2008.4559816
