Title :
Computational electromagnetics research for discontinuities in microwave circuits
Author :
Long, Jinkai ; Cui, Xiaoxin ; Yu, Dunshan
Author_Institution :
Inst. of Microelectron., Peking Univ., Beijing, China
Abstract :
In this paper, some discontinuities encountered in the microwave circuits are discussed. Then the theoretical foundation and the basic principle of the Finite Difference Time Domain (FDTD) algorithm are introduced briefly. In the principal part of the paper, the FDTD method is applied to simulate and analyze the microstrip bends. With the help of the software of FDTD and Matlab tools, the voltage signal and the reflection parameter of the microstrip bends with different miters are picked up. The results indicate that the transmission characteristics of the microstrip line will get better if the corner is cut properly. The paper also fits the functions between the reflection parameter and the miter size, work frequency. In the end, two judgment standards of the reflection parameter are proposed.
Keywords :
computational electromagnetics; finite difference time-domain analysis; microstrip circuits; microstrip lines; microwave circuits; reflection; FDTD algorithm; Matlab tool; computational electromagnetics research; discontinuities; finite difference time domain algorithm; microstrip bends; microstrip line; microwave circuit; miter size; reflection parameter; transmission characteristics; voltage signal; Analytical models; Circuit simulation; Computational electromagnetics; Finite difference methods; Microstrip components; Microwave circuits; Reflection; Software tools; Time domain analysis; Voltage; method of FDTD; microstrip bends; polynomial fitting; reflection parameter S11;
Conference_Titel :
Industrial Electronics and Applications (ICIEA), 2010 the 5th IEEE Conference on
Conference_Location :
Taichung
Print_ISBN :
978-1-4244-5045-9
Electronic_ISBN :
978-1-4244-5046-6
DOI :
10.1109/ICIEA.2010.5515261
