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Implementation of S-Parameter of Active Elements for FDTD Analysis
Naobumi MICHISHITA Takashi HIBINO Hiroyuki ARAI
IEICE TRANSACTIONS on Electronics
Publication Date: 2006/12/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Emerging Microwave Techniques)
Category: Passive Circuits/Components
FDTD, S-parameter, active element, implementation method, tunable band pass filter,
Full Text: PDF(578.1KB)>>
In the design of an active integrated antenna, it is necessary to analyze problems such as unwanted emissions or mutual coupling between elements. In this paper, we clarify the problems in implementing S-parameters for an FDTD analysis. Cubic spline interpolation is suitable for the construction of the S-parameter data. The implementation methods of terminal resistors and vias are examined. The proposed FDTD analysis becomes stable after correcting the discrete time lag in the formation of the incident wave. The validity of the proposed method is verified in its application to the low pass filter and the frequency tunable band pass filter.