Title :
Comments on "Application of double negative materials to increase the power radiated by electrically small antennas"
Author :
Kildal, Per-Simon
Author_Institution :
Antenna Group, Chalmers Univ. of Technol., Goteborg, Sweden
Abstract :
For original paper see Ziolkowski and Kipple (IEEE Trans. Antennas Propag., vol.51, no.10, p.2626-40, 2003 October). The results of the commented paper are of no value for evaluating the performance of small antennas surrounded by double negative material. The characterizing parameter "radiated power gain" is misleading and turns out to be a relative input resistance rather than a gain.
Keywords :
antenna radiation patterns; dipole antennas; metamaterials; performance evaluation; DNG; double negative material; electrically small antenna; performance evaluation; radiated power gain; Antenna theory; Bandwidth; Circuits; Dipole antennas; Electric resistance; Feeds; Gain; Impedance; Reflection; Transmitters;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2005.863160
