TY - JOUR
T1 - Analysis and application of new quasi-network characteristics of nonuniform mesh in FDTD simulation
AU - Zhang, Yan
AU - Gao, Ben Qing
AU - Ren, Wu
AU - Xue, Zheng Hui
AU - Li, Wei Ming
PY - 2002/11
Y1 - 2002/11
N2 - The equation of computing the reflection coefficient between two meshes of different sizes is derived. Using the equation, quasi-network characteristics of nonuniform mesh for the finite-difference time-domain technique is found and analyzed. The so-called mesh network (MN) here is a kind of structure composed of the sections of mesh in cascade. The cell sizes of these sections change regularly. By means of choosing the number of mesh sections, length of each section, and cell sizes, some novel network characteristics are obtained, which can be used to match the reflecting wave of nonuniform mesh or improve the transmitted characteristics for a mesh wave to travel along the nonuniform mesh. Formulas for analyzing the MN are given. The characteristics are realized in both one- and three-dimensional cases. The applications and advantages of the MN are shown by computing three different structures, i.e., microstrip-gap capacitor, parallel-coupling filter, and microstrip slot-line transformer.
AB - The equation of computing the reflection coefficient between two meshes of different sizes is derived. Using the equation, quasi-network characteristics of nonuniform mesh for the finite-difference time-domain technique is found and analyzed. The so-called mesh network (MN) here is a kind of structure composed of the sections of mesh in cascade. The cell sizes of these sections change regularly. By means of choosing the number of mesh sections, length of each section, and cell sizes, some novel network characteristics are obtained, which can be used to match the reflecting wave of nonuniform mesh or improve the transmitted characteristics for a mesh wave to travel along the nonuniform mesh. Formulas for analyzing the MN are given. The characteristics are realized in both one- and three-dimensional cases. The applications and advantages of the MN are shown by computing three different structures, i.e., microstrip-gap capacitor, parallel-coupling filter, and microstrip slot-line transformer.
KW - Finite-difference time-domain (FDTD) algorithm
KW - Mesh wave impedance (MWI)
KW - Mesh-network (MN) characteristics
KW - Nonuniform mesh
UR - http://www.scopus.com/inward/record.url?scp=0036851298&partnerID=8YFLogxK
U2 - 10.1109/TMTT.2002.804635
DO - 10.1109/TMTT.2002.804635
M3 - Article
AN - SCOPUS:0036851298
SN - 0018-9480
VL - 50
SP - 2519
EP - 2526
JO - IEEE Transactions on Microwave Theory and Techniques
JF - IEEE Transactions on Microwave Theory and Techniques
IS - 11 SPEC
ER -