## Abstract A three‐dimensional implementation of the lumped‐element by Crank‐Nicolson finite‐difference time‐domain (CN‐FDTD) algorithm has been presented in this article. Several examples of planar microwave circuits with lumped resistor, capacitor, and/or inductor are simulated and compared with
FDTD simulations for hybrid circuits with linear and nonlinear lumped elements
✍ Scribed by Weiliang Yuan; Erping Li
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 293 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
In this paper, hybrid circuits with lumped elements, including a capacitor, inductor, and diode, are analyzed with the finite‐difference time‐domain (FDTD) method, and alternative algorithms for FDTD simulations of those elements are proposed, respectively. An integral formulation for the capacitor and a differential one for the inductor make it possible that any concatenations of multiple lumped elements can be inserted into one Yee cell in FDTD simulations. An algorithm for the diode is also modified to extend the dynamic range of its 3‐D FDTD simulation. Then, several hybrid circuits with different concatenations of lumped elements are analyzed by using the FDTD method. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 32: 408–412, 2002.
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A new ¨oltage source formulation for FDTD is reported in this article. By stimulating the ¨oltage source right in the plane of the strip line, this new source formulation can be used in the simulation of a wide ¨ariety of high-frequency integrated circuits, including those without ground planes. Com