Abstract
In this paper, an open - ended rectangular waveguide antenna loaded with Triangular Split Ring Resonators and Wire Strip (TSRR-WS) radiating below the cut-off frequency of the waveguide is proposed. This work has investigated design development, simulation and miniaturization of an open end a waveguide dual band antenna. A novel technique was employed to miniaturize the open-ended radiator using electromagnetic metamaterials (MTM). The antenna is capable of radiating below the cutoff frequency of the waveguide by supporting backward waves. Comparing previous work of miniaturizati on of waveguides, a better bandwidth about 600 MHz, good matching and low profile (with 5 unit cell of MTMs) antenna is obtained.
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