Circuit models for Sierpinski gasket antennas
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A lumped-parameter impedor-oriented and a 2-port-network-oriented circuit models for the Sierpinski gasket prefractal antenna are presented. With the former, the voltage and current patterns give a detailed understanding of the electromagnetic fields' self-similar distribution throughout the antenna geometry; on the other hand model complexity exponentially increases with the prefractal iteration order. The latter "black-box" model only controls port-oriented global parameters which are the ones commonly used in antennas' circuit models and its complexity is independent of prefractal order. The "black-box" model is also shown to converge, at fractal limit, to a reciprocal triangular network.
[10 pages, 9 figures] Authors are with the Electronic Engineering Department, "La Sapienza" University of Rome, Italy, at http://www.die.uniroma1.it/strutture/labcem/
[10 pages, 9 figures] Authors are with the Electronic Engineering Department, "La Sapienza" University of Rome, Italy, at http://www.die.uniroma1.it/strutture/labcem/