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

fYear

2000

fDate

2000

Firstpage

375

Lastpage

378

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology, 2000, 2nd International Conference on. ICMMT 2000

Conference_Location

Beijing

Print_ISBN

0-7803-5743-4

Type

conf

DOI

10.1109/ICMMT.2000.895699

Filename

895699