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An approach combining the integral equation method with a generalized image technique for modeling incabin radio wave propagation
Author(s) -
Zhao WeiJiang,
Liu EnXiao,
Wang Binfang,
Gao SiPing,
Png Ching Eng
Publication year - 2019
Publication title -
international journal of numerical modelling: electronic networks, devices and fields
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.249
H-Index - 30
eISSN - 1099-1204
pISSN - 0894-3370
DOI - 10.1002/jnm.2595
Subject(s) - transmitter , basis function , basis (linear algebra) , antenna (radio) , moment (physics) , integral equation , dimension (graph theory) , method of moments (probability theory) , function (biology) , wave propagation , mathematical analysis , radio propagation , radio propagation model , radio wave , acoustics , computer science , physics , mathematics , optics , telecommunications , classical mechanics , geometry , channel (broadcasting) , statistics , estimator , evolutionary biology , pure mathematics , biology
Abstract An approach that combines the integral equation (IE) method with a generalized image technique (GIT) is proposed for modeling radio wave propagation inside an electrically large and imperfectly conducting closed environment. The electric current distribution on a transmit antenna solved with a method of moment procedure is expressed as a weighted sum of basis functions. Each basis function with a small dimension is thought as a subtransmitter. The GIT is introduced to compute the single and multiple reflections by imperfectly conducting walls due to the radiation from these subtransmitters. The proposed approach can be applied to predict the radio wave propagation from a transmitter in the vicinity of an electrically large environment. Its validity is demonstrated through some numerical examples where full‐wave results are available.