A metamaterial absorber based high gain directional dipole antenna

Author:

Pushpakaran, Sarin Valiyaveettil  Purushothama, Jayakrishnan M.  Mani, Manoj  Chandroth, Aanandan  Pezholil, Mohanan  Kesavath, Vasudevan  

Journal:

INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES

Issue Date:

2018

Abstract(summary):

A novel idea for generating directional electromagnetic beam using a metamaterial absorber for enhancing radiation from a microwave antenna in the S-band is presented herewith. The metamaterial structure constitutes the well-known stacked dogbone doublet working in the absorption mode. The reflection property of the dogbone metamaterial absorber, for the non-propagating reactive near-field, is utilized for achieving highly enhanced and directional radiation characteristics. The metamaterial absorber converts the high-spatial reactive spectrum in the near-field into propagating low-spatial spectrum resulting in enhanced radiation efficiency and gain. The gain of a printed standard half-wave dipole is enhanced to 10 dBi from 2.3 dBi with highly directional radiation characteristics at resonance.

Page:

430---436