Title :
The analysis of 3 dB microstrip directional coupler in time-varying media by FDTD method
Author :
Ren, Wu ; Gao, Ben-qing
Author_Institution :
Beijing Inst. of Technol., China
Abstract :
The characteristics of time-varying media are very important for electromagnetic research; many microwave components should be studied in time-varying media, and some of these will not work well because of the influence of the time-varying medium. In this paper, FDTD difference equations in time-varying media are deduced in the three-dimension case, and then using it to simulate the electromagnetic pulse´s propagation in a 3 dB microstrip directional coupler to show whether the transmission characteristic will be changed when the media parameters vary by some rules. By comparing its operating characteristics with that in homogenous static media, we can see that it does not work well
Keywords :
finite difference time-domain analysis; microstrip directional couplers; FDTD method; electromagnetic pulse propagation; microstrip directional coupler; time-varying media; transmission characteristic; Difference equations; Directional couplers; Electromagnetic analysis; Electromagnetic coupling; Electromagnetic fields; Electromagnetic propagation; Electromagnetic transients; Finite difference methods; Microstrip; Time domain analysis;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2000, 2nd International Conference on. ICMMT 2000
Conference_Location :
Beijing
Print_ISBN :
0-7803-5743-4
DOI :
10.1109/ICMMT.2000.895699
