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REDUCTION OF SIMULATION TIMES FOR HIGH-Q STRUCTURES USING THE RESONANCE EQUATION

By T. W. Hall, P. R. Bandaru, and D. Rees

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Abstract:
Simulating steady state performance of high quality factor (Q) resonant RF structures is computationally difficult for structures with sizes on the order of more than a few wavelengths because of the long times (on the order of ~ 0.1 ms) required to achieve steady state in comparison with maximum time step that can be used in the simulation (typically, on the order of ~ 1 ps). This paper presents analytical and computational approaches that can be used to accelerate the simulation of the steady state performance of such structures. The basis of the proposed approach is the utilization of a larger amplitude signal at the beginning to achieve steady state earlier relative to the nominal input signal. The methodology for finding the necessary input signal is then discussed in detail, and the validity of the approach is evaluated.

Citation:
T. W. Hall, P. R. Bandaru, and D. Rees, "Reduction of simulation times for high-q structures using the resonance equation," Progress In Electromagnetics Research M, Vol. 44, 149-160, 2015.
doi:10.2528/PIERM15090802
http://www.jpier.org/pierm/pier.php?paper=15090802

References:
1. Liu, Q. H., "The PSTD algorithm: A time-domain method requiring only two cells per wavelength," Microwave and Optical Technology Letters, Vol. 15, No. 3, 158-158, 1997.
doi:10.1002/(SICI)1098-2760(19970620)15:3<158::AID-MOP11>3.0.CO;2-3

2. Shaw, A. K. and K. Naishadham, "Efficient ARMA modeling of FDTD time sequences for microwave resonant structures," IEEE Trans. Microwave Theory Tech., Microwave Symposium Digest, Vol. 1, 341-344, 1997.

3. Bondeson, A., T. Rylander, and P. Ingelström, Computational Electromagnetics, Springer, 2005.

4. Lee, T. W. and S. C. Hagness, "Pseudospectral time-domain methods for modeling optical wave propagation in second-order nonlinear materials," Journal of the Optical Society of America B, Vol. 21, No. 2, 2004.
doi:10.1364/JOSAB.21.000330

5. Insepov, Z., et al., "Modeling RF breakdown arcs,", arXiv:1003.1736, 2011.

6. Kravchuk, L. V., G. V. Romanov, and S. G. Tarasov, "Multipactoring code for 3D accelerating structures,", arXiv:physics/0008015, 2000.

7. Cummings, K. A. and S. H. Risbud, "Dielectric materials for window applications," Journal of Physics and Chemistry of Solids, Vol. 61, No. 4, 2000.
doi:10.1016/S0022-3697(99)00253-X

8. CST Studio Suite, CST, , www.sct.com.

9. Wangler, T. P., "RF Linear Accelerators," Wiley-VCH, 2008.

10. Allen, M. B. and E. L. Isaacson, Numerical Analysis for Applied Science, Wiley, 2011.


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