NDLI: WCIP method for multiple-loop antennas around a spherical media

Content Provider	IET Digital Library
Author	Ammar, Noemen Baudrand, Henri
Abstract	In this study, the wave concept iterative process method is developed in a spherical coordinate system in order to investigate the characteristic of multiple-loop antennas around a multilayer sphere. The analysis method is based on the incoming and outgoing waves defined from the tangential electromagnetic fields at the interfaces of the layers. The iterative process is governed by two systems of equations linking the waves in spectral and spatial domains. The toggling between the two domains is insured by the Legendre transformation. Numerical results consider single and multiple loops (both activated and parasitic loops) around a metallic sphere coated by one or several dielectric layers. The mutual coupling and the radiation characteristic of a loop excited by two feeding sources are analysed. The influence of parasitic loops on the return loss of the activated loop is extensively investigated including the number and the position of the loops on the sphere. The coupling sensitivity between two activated feeding sources is also investigated. The presented results agree very well with the simulation and the literature.
Starting Page	666
Ending Page	674
Page Count	9
ISSN	17518725
Volume Number	13
e-ISSN	17518733
Issue Number	Issue 5, Apr (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/13/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2018.5661
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2019-01-22
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Activated Feeding Sources Activated Loop Analysis Method Electromagnetic Field Interpolation And Function Approximation Iterative Method Loop Antenna Metallic Sphere Multilayer Sphere Multiple-loop Antenna Numerical Analysis Numerical Approximation And Analysis Outgoing Wave Parasitic Loops Single Antenna Spatial Domain Spectral Domain Spherical Coordinate System Spherical Media Tangential Electromagnetic Field Wave Concept Iterative Process Method WCIP Method
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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