Title :
A CAD neural model for shielded and conductor backed CPW
Author :
Selvan, P. Thiruvalar ; Raghavan, S. ; Suganthi, S.
Author_Institution :
Dept. of ECE, Nat. Inst. of Technol., Trichirapalli
Abstract :
In this paper a CAD approach based on ANNs was successfully introduced to determine the parasitic effects occurred in (effective dielectric and characteristics impedance) Coplanar Wave guide (CPW) with upper shielding and conductor backing. ANNs were trained with three learning algorithms to obtain better performance and faster convergence with simpler structure. The best results were obtained with Levenberg-marquardt algorithms. The quasi-static parameters of two different CPW configurations can be calculated using the neural model proposed in this work very accurately.
Keywords :
MMIC; circuit CAD; coplanar waveguides; electromagnetic shielding; neural nets; ANN; CAD neural model; CPW; Levenberg-marquardt algorithm; MMIC applications; conductor backing; coplanar waveguide; learning algorithm; upper shielding; Capacitance; Conductors; Conformal mapping; Coplanar waveguides; Dielectric substrates; Erbium; Gallium arsenide; Impedance; Microwave integrated circuits; Strips; Artificial neural networks; Characteristics impedance; Effective Permitivity; Learning Algorithms; Shielded Coplanar wave-guides;
Conference_Titel :
Applied Electromagnetics Conference, 2007. AEMC 2007. IEEE
Conference_Location :
Kolkata
Print_ISBN :
978-1-4244-1863-3
Electronic_ISBN :
978-1-4244-1864-0
DOI :
10.1109/AEMC.2007.4638026
