![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
ABSTRACT
This paper presents a new analytical method based on mode matching technique for a waveguide full of anisotropic material with rods. It is proved that mode matching technique is applicable for the waveguide with anisotropic materials. The problem is considered as a 2D electromagnetic problem assuming no field variation normal to the waveguide length. Incident and scattered fields from circular cylinder rods in ferrite medium are expanded with cylindrical modes, and the fields in the waveguide ports are expanded using progressive and regressive modal summations. In both regions, extraordinary wave number is considered for the fields. Finally, the hybrid mode matching between guided and cylindrical modes is done by projecting continuity equations in the circular boundary containing the rod. The fast Fourier transform is used to solve the matching in the presented method. It is shown, that the new method runs faster than commercial software packages, with very good accuracy.
Additional information
Notes on contributors
Zahra Bahrami
Zahra Bahrami was born in Iran, in 1990. She received the BSc from The Imam Khomeini International University, Qazvin Iran, in 2012 and MSc degrees in electrical engineering from The Imam Khomeini International University, Qazvin Iran, in 2014. Now she is a PhD student in electrical engineering in Imam Khomeini International University, Qazvin, Iran.
Asghar Keshtkar
Asghar Keshtkar was born in Ardabil, Iran, in1962. He received the BSc degree in electrical engineering from Tehran University, Tehran, Iran, in 1989, the MSc degree in electrical engineering from the University of Khaje-Nasir, Tehran, in 1992, and the PhD degree in electrical engineering from Iran University of Science and Technology, Tehran, in 1999. He is currently a Professor with The Faculty of Engineering and Technology, Imam Khomeini International University, Qazvin, Iran. His research interests include electromagnetic launcher, bioelectromagnetics, and antenna.
Ayaz Ghorbani
Ayaz Ghorbani received the Postgraduate Diploma, MPhil, and PhD degrees in electrical and communication engineering and the PhD degree from the University of Bradford, Bradford, UK, in 1984, 1985, 1987, and 2004, respectively. Since 1987, he has been teaching various courses with the Department of Electrical Engineering, Amirkabir University of Technology, Tehran, Iran. He has authored or co-authored more than 100 papers in various conferences as well as journals. Dr Ghorbani received the John Robertshaw Travel Award and the URSI Young Scientists Award from the General Assembly of URSI, Prague, Czech Republic, in 1990. He was a recipient of the Seventh and Tenth Khwarazmi International Festival Prizes, in 1993 and 1995, respectively, for design and implementation of an anti-echo chamber and microwave subsystems.
Hector Esteban
Hector Esteban received the degree in telecommunications engineering from the Polytechnic University of Valencia, Valencia, Spain, in1996, and the PhD degree in 2002. He collaborated with the Joint Research Center, European Commission, Ispra, Italy. In 1997, he was with the European Topic Center on Soil (European Environment Agency). He rejoined the UPV in1998. His research interests include methods for the full-wave analysis of open-space and guided multiple scattering problems, CAD design of microwave devices, electromagnetic characterization of dielectric and magnetic bodies, and the acceleration of electromagnetic analysis methods using the wavelets and the FMM.