A CAD based Approach on Artificial Neural Networks for Conductor Backed Coplanar Waveguides

Abstract

In this paper a computer aided design (CAD) approach based on artificial neural networks (ANNs) successfully simulated to determine the characteristics parameters such as effective dielectric constant and characteristic impedances of conductor backed coplanar waveguides (CBCPW). These neural models are trained with Levenberg-Marquardt, Bayesian regularization, gradient descent algorithms. The Levenberg-Marquardt algorithm and Bayesian regularization was found to be the best algorithm among all the three algorithms. As a result, ANN models presented in this work can be used easily, simply and accurately to determine the characteristic parameters of the Conductor Backed Coplanar Waveguides.

Indexing terms:

• Conductor backed coplanar waveguide
• Characteristic impedance
• Effective dielectric permittivity
• Artificial neural network

Additional information

Notes on contributors

T Shanmuganantham

T Shanmuganantham received BE degree in Electronics and Communication Engineering from University of Madras, ME degree in Communication Systems from Madurai Kamaraj University and pursuing PhD degree in the area of Microwave Integrated Circuits under the guidance of Dr S Raghavan from Department of Electronics and Communication Engineering, National Institute of Technology, Tiruchirappalli, Tamil Nadu, India. Since 1996, he has 10 years of teaching experience in various reputed Engineering Colleges such as SSN College of Engineering, Chennai, National Institute of Technology & Science, Chennai and Jayaram College of Engineering & Technology, Trichy. His research interest includes Microwave Integrated Circuits, Antennas, Computational Electromagnetics and CAD of MICs. He has published 12 research papers in various National and International level Conferences and Journals. He is a member in IEEE, Life Member in IETE, ISTE and Institute of Engineers.

S Raghavan

S Raghavan having 26 years of Teaching (UG, PG and Research) experience in the National Insti-tute of Technology, Tiruchirappalli, India as a Senior Professor. Developed Microwave and Microwave Integrated Circuits Lab. Obtained BE (Electronics and Communication Engineering) degree from College of Engineering, Guindy. MSc(Engg)Microwave Engineering from College of Engineering, Trivandrum and PhD (Microwave Integrated Circuits) from IIT, Delhi, India under the guidance of Prof Baharathi Bhat and Prof SK Koul, Senior Member of IEEE In MTT and EMBS. Life Fellow In BES. Fellow in IETE and IE, Life member In ISSS, MRSI, ISTE, EMC/EMI, IELTS and ILA. Referee for MTT journal. Carried out two Research and Development projects of Coplanar Waveguide and RF-MEMS. Has contributed more than thirty papers in international conference and five international journals. Conducted two tutorials in IEEE preconference tutorials.