A metamaterial absorber based high gain directional dipole antenna

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

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


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.
Original languageEnglish
Pages (from-to)430-436
Number of pages7
JournalInternational Journal of Microwave and Wireless Technologies
Issue number4
Publication statusPublished - May 2018


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