Title :
Analysis of the caustic region field of a PEMC spherical reflector placed in chiral medium
Author :
Mughal, M.J. ; Mehmood, M.Q. ; Rahim, T.
Author_Institution :
Fac. of Electron. Eng., GIK Inst. of Eng. Sci. & Technol., Swabi, Pakistan
Abstract :
High frequency field expressions are derived around the focal point of spherical reflector placed in a chiral medium. Spherical reflector presented in this paper has prefect electromagnetic conducting (PEMC) boundary. Maslov´s method is used at the vicinity of caustic region of PEMC spherical reflector placed in chiral medium because geometrical optics (GO) fails at this region. Depending upon the values of chirality parameter (kβ) two cases are analyzed. In the first case, chiral medium supports positive phase velocity (PPV) for both the left circularly polarized (LCP) and right circularly polarized (RCP) modes. In the second case, chiral medium supporting PPV for one mode and negative phase velocity (NPV) for the other mode is taken into account. Field plots for different values of admittance (M) of PEMC and chirality parameter (kβ) are given in the paper.
Keywords :
chirality; conductors (electric); electromagnetic wave propagation; geometrical optics; optical elements; Maslov method; PEMC spherical reflector; chiral medium; geometrical optic; high frequency field expression; left circularly polarized mode; negative phase velocity; positive phase velocity; prefect electromagnetic conducting boundary; right circularly polarized mode; Conductors; Conferences; Differential equations; Electromagnetics; Electronic mail; Equations; Signal processing;
Conference_Titel :
Signal Processing and Communications Applications (SIU), 2011 IEEE 19th Conference on
Conference_Location :
Antalya
Print_ISBN :
978-1-4577-0462-8
Electronic_ISBN :
978-1-4577-0461-1
DOI :
10.1109/SIU.2011.5929597
