Title :
Modeling lossy substrates with direct boundary element method
Author :
Wang, Xiren ; Zhang, Mensheng ; Yu, Wenjian ; Wang, Zeyi
Author_Institution :
Dept. of Comput. Sci. & Technol., Tsinghua Univ., Beijing
Abstract :
It is important to model coupling effects of lossy substrates for the designs of RF or mixed-signal circuits. A direct boundary element method using the complex permittivity concept is presented for accurate modeling the lossy couplings. Only the free-space Green´s function is used in this method, and then the method is versatile for substrates with arbitrary doping profiles. Numerical experiments illustrate that our method gives accurate results, and it can easily model a more complex than stratified substrate
Keywords :
Green´s function methods; boundary-elements methods; integrated circuit design; integrated circuit modelling; mixed analogue-digital integrated circuits; radiofrequency integrated circuits; substrates; RF circuit design; arbitrary doping profiles; complex permittivity concept; direct boundary element method; free-space Greens function; lossy couplings; lossy substrate modeling; mixed-signal circuits; Boundary element methods; Coupling circuits; Discrete cosine transforms; Finite difference methods; Frequency; Green´s function methods; Impedance; Permittivity; Semiconductor process modeling; Voltage;
Conference_Titel :
ASIC, 2005. ASICON 2005. 6th International Conference On
Conference_Location :
Shanghai
Print_ISBN :
0-7803-9210-8
DOI :
10.1109/ICASIC.2005.1611490
