DocumentCode :
1485033
Title :
Efficient Low-Frequency Breakdown Free Full-Wave PEEC Modeling Based on Geometrical Optics DCIM
Author :
Zong, Zhi-Yuan ; Wu, Wen ; Ling, Feng ; Chen, Ji ; Fang, Da-gang
Author_Institution :
Ministerial Key Lab. of JGMT, Nanjing Univ. of Sci. & Technol., Nanjing, China
Volume :
60
Issue :
6
fYear :
2012
fDate :
6/1/2012 12:00:00 AM
Firstpage :
1500
Lastpage :
1512
Abstract :
The partial element equivalent circuit (PEEC) modeling based on geometrical optics discrete complex image method (GODCIM) is proposed. In GODCIM, the spectral domain dyadic Green´s functions for layered media (DGFLM) are expanded into a geometrical optics series. The coefficient of each term is related to the Green´s function for a half-space problem and then is expanded into an exponential series with frequency-independent parameters, which avoids the repeated computations of the complex images at each frequency brought by the conventional discrete complex image method (DCIM) and facilitates its application to the PEEC method to solve the layer medium problems. To address the low-frequency breakdown issue in PEEC modeling, a capacitor-opened (CO) model is introduced, which leads to fewer unknowns comparing with modified nodal analysis (MNA) model. The calculation errors between CO and MNA model are verified to be negligible. Easy switching between CO model and modified loop analysis (MLA) model is realized by a switching criterion based on Kalman filter which leads to a full spectrum simulation from dc to high frequencies. Numerical results ranged from Hz to 30 GHz are given to validate the proposed method.
Keywords :
Green´s function methods; Kalman filters; equivalent circuits; geometrical optics; image processing; inhomogeneous media; optical filters; optical switches; CO model; DGFLM; GODCIM method; Kalman filter; capacitor-opened model; exponential series; frequency 0.10000 Hz to 30 GHz; frequency-independent parameters; full spectrum simulation; geometrical optics discrete complex image method; half-space problem; layer medium problems; layered media; low-frequency breakdown free full-wave PEEC modeling; modified nodal analysis model; partial element equivalent circuit modeling; spectral domain dyadic Green´s functions; switching; Computational modeling; Geometrical optics; Green´s function methods; Integrated circuit modeling; Microstrip; Nonhomogeneous media; Numerical models; Discrete complex image method (DCIM); Green´s functions; geometrical optics discrete image method (GODCIM); low-frequency breakdown; partial element equivalent circuit (PEEC);
fLanguage :
English
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9480
Type :
jour
DOI :
10.1109/TMTT.2012.2189238
Filename :
6178297
Link To Document :
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