DocumentCode :
1065182
Title :
Proper interpretation of source excitations for resolving ostensible excessive power gains of metamaterial resonances
Author :
Kehn, M. Ng Mou ; Shafai, L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Manitoba, Winnipeg, MB
Volume :
45
Issue :
12
fYear :
2009
Firstpage :
599
Lastpage :
601
Abstract :
The aim of this communication is to resolve the anomalous phenomenon of extremely large radiated powers of antennas embedded within metamaterial layers apparently achievable under resonances. The essence of the discussion rests on the law of power conservation and causality conditions. A slotted spherical dipole coated with two layers of homogeneous materials is chosen to illustrate the concepts, and the classical approach for solving boundary-value problems via separation of variables is used to treat the structure.
Keywords :
boundary-value problems; dipole antennas; metamaterials; slot antennas; boundary-value problem; metamaterial resonance; ostensible power gain; power conservation law; slotted spherical dipole coated antenna; variable separation method;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el.2009.0822
Filename :
5069760
Link To Document :
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