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A spectral estimation technique to improve the efficiency of FDTD method for narrow-band microwave circuits

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2 Author(s)
Xing Ping Lin ; Dept. of Electr. Eng., Wright State Univ., Dayton, OH, USA ; Naishadham, K.

With the advances in computer technology, the finite-difference time-domain (FDTD) method is becoming increasingly popular in the analysis of microwave circuits. A major drawback of the conventional Yee FDTD implementation is the enormous time and memory required to characterize the resonant behavior of narrow-band circuits. In this paper, we introduce a technique which effectively employs a combination of Prony's extrapolation and adaptive sampling of the temporal data to reduce the number of FDTD iterations for resonant circuits. The new technique is applied to the characterization of a multilayered coplanar waveguide filter element.<>

Published in:
Microwave Symposium Digest, 1995., IEEE MTT-S International

Date of Conference: 16-20 May 1995

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