Title :
Radiation by axial slot elliptical antenna coated by a lossy dielectric material
Author :
Hussein, M.I. ; Hamid, A.K.
Author_Institution :
Dept. of Electr. Eng., United Arab Emirates Univ., Al-Ain
Abstract :
The radiation properties of axially slotted elliptical antenna coated by a lossy dielectric material are investigated. The analysis is carried out by expressing the fields outside the antenna structure (free space) and inside the lossy dielectric coating in terms of elliptic waves via Mathieu functions, then boundary conditions are employed to solve for the unknown expansion coefficients. Numerical results are presented in graphical form for the transverse magnetic (TM) case to illustrate the radiation pattern, the aperture conductance, and the gain against the coating thickness
Keywords :
antenna radiation patterns; aperture antennas; dielectric materials; slot antennas; Mathieu functions; antenna gain; antenna radiation pattern; antenna structure; aperture conductance; axial slot elliptical antenna; boundary conditions; coating thickness; elliptic waves; elliptical cylinder; expansion coefficients; lossy dielectric material coating; radiation properties; slotted antenna; transverse magnetic radiation; Antenna radiation patterns; Apertures; Coatings; Conducting materials; Dielectric losses; Dielectric materials; Engine cylinders; Equations; Magnetic materials; Slot antennas;
Conference_Titel :
Electromagnetic Compatibility, 2003. EMC '03. 2003 IEEE International Symposium on
Conference_Location :
Istanbul
Print_ISBN :
0-7803-7779-6
DOI :
10.1109/ICSMC2.2003.1428216
