Very simple and accurate Computer-Aided-Design (CAD) models developed by genetic programming for the quasistatic analysis of unshielded suspended and inverted microstrip lines
title = "Very simple and accurate Computer-Aided-Design (CAD)
models developed by genetic programming for the
quasistatic analysis of unshielded suspended and
inverted microstrip lines",
journal = "Istanbul University Journal of Electrical and
Electronics Engineering",
abstract = "Very simple computer-aided-design models are
introduced to determine the characteristic parameters
such as effective permittivities and characteristic
impedances of unshielded suspended and inverted
microstrip lines. Computer aided-design models are
determined with the use of the genetic programming. The
results of computer-aided-design models are compared
with the results of quasi-static analysis, experimental
works available in the literature and a commercial
electromagnetic simulator. The comparison results
clearly show that computer-aided-design models proposed
in this work are in very good agreement with the
simulation, theoretical and experimental results for
the suspended and inverted microstrip lines. The design
parameter ranges are 2 <= epsilon_r2 <= 20, 0.5 <= w/b
<= 10, 0.1 <= a/b <= 1.5, and the respective
characteristic impedances of unshielded suspended and
inverted microstrip lines are 28 ohms <= Z0 <= 185
ohms, and 24 <= Z0 <= 159 ohms. our CAD models are good
enough for the most practical cases.",