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Title: An experimental verification of metamaterial coupled enhanced transmission for antenna applications

Inspired by the work of Bethe on electromagnetic transmission through subwavelength hole, there has been immense interest on the extraordinary transmission through subwavelength slot/slit on metal plates. The invention of metamaterials has boosted the extra ordinary transmission through subwavelength slots. We examine computationally and experimentally the concept of metamaterial cover using an array of split ring resonators (SRRs), for enhancing the transmission in a stacked dipole antenna working in the S band. The front to back ratio is considerably improved by enhancing the magnetic resonant strength in close proximity of the slit of the upper parasitic dipole. The effect of stacking height of the SRR monolayer on the resonant characteristics of the split ring resonators and its effect on antenna radiation characteristics has been studied.
Authors:
 [1] ;  [2] ; ; ; ; ; ;  [3]
  1. Department of Electronics, Government College, Chittur, Palakkad, Kerala (India)
  2. Department of Electronics, Government College, Mananthavady, Kerala (India)
  3. Centre for Research in Electromagnetics and Antennas, Cochin University of Science and Technology, Cochin-22, Kerala (India)
Publication Date:
OSTI Identifier:
22283164
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANTENNAS; DIPOLES; ELECTROMAGNETIC RADIATION; METALS; PLATES; REFRACTIVE INDEX; RESONATORS; WAVE PROPAGATION