J4 ›› 2012, Vol. 39 ›› Issue (6): 162-166+200.doi: 10.3969/j.issn.1001-2400.2012.06.026

• Original Articles • Previous Articles     Next Articles

Model of a fast resonant cavity for triangular power and ground planes

QIU Jiatao1;LI Yushan1;JIANG Dongchu1,2;LU Jianmin1   

  1. (1. Research Inst. of Electronic CAD, Xidian Univ., Xi'an  710071, China;
    2. School of Communication and Electronic Eng., Hunan City Univ., Yiyang  413000, China)
  • Received:2012-07-13 Online:2012-12-20 Published:2013-01-17
  • Contact: QIU Jiatao E-mail:jtqiu@mail.xidian.edu.cn

Abstract:

For the low efficiency and poor accuracy of the model for isosceles right-angled triangular planes, a fast Spice-compatible resonant cavity model is proposed based on double frequencies approximation. Compared with the model based on the inductance approximation, the proposed method greatly improves the simulation efficiency and accuracy of isosceles right-angled triangular power and ground planes, since it uses the least number of basic modes and a high-order modified circuit. Simulation results indicate that the error of the inductance-based model is about 10% when the critical factor of categorization equals 2, while the error of the proposed model is about 1% when the critical factor of categorization equals 1.3. And the simulation time of the proposed model is only 26% that of the inductance-based model. This verifies the effectiveness of the proposed model in improving the simulation efficiency and accuracy of isosceles right-angled triangular power and ground planes.

Key words: modeling power and ground planes, triangular power and ground planes, double frequencies approximation, SPICE circuit model, cavity resonator