Title :
On the Surface Fields Excited by a Hertzian Dipole Over a Layered Halfspace: From Radio to Optical Wavelengths
Author :
Michalski, Krzysztof A. ; Mosig, Juan R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
The Sommerfeld halfspace problem is revisited allowing for multilayer and plasmonic media, with a focus on the surface field computation. Alternative field representations are discussed and an improved Sommerfeld-Norton groundwave formula is developed. The role of the Zenneck wave and surface plasmon polariton in the surface field and their relationship is elucidated. The theoretical development is illustrated and validated by representative numerical results.
Keywords :
dipole antennas; plasmons; polaritons; Hertzian dipole antenna; Sommerfeld halfspace problem; Sommerfeld-Norton groundwave formula; Zenneck wave; layered halfspace; optical wavelengths; plasmonic media; radio wavelengths; surface field computation; surface fields; surface plasmon polariton; Antennas; Green´s function methods; Media; Optical surface waves; Plasmons; Surface waves; Zinc; Sommerfeld-Norton groundwave; Sommerfeld???Norton groundwave; Surface wave; Zenneck wave; Zenneck wave (ZW); surface plasmon polariton; surface plasmon polariton (SPP); surface wave;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2015.2484422
