Title :
A study of the antenna radiation efficiency for electrically small antennas
Author :
Fujita, Kinya ; Shirai, Hiroshi
Author_Institution :
Grad. Sch. of Sci. & Eng., Chuo Univ., Tokyo, Japan
Abstract :
Antenna radiation efficiency for electrically small antennas has been discussed in this paper. The radiated field is expressed in terms of spherical harmonic TE and TM modes and radiated and dissipated powers are described by this modal excitation coefficients. By carefully evaluating the above coefficients, upper bound of the radiation efficiency has been estimated.
Keywords :
antenna radiation patterns; antenna radiation efficiency; electrically small antennas; modal excitation coefficients; radiation efficiency; spherical harmonic TE modes; spherical harmonic TM modes; Antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6711420
