عنوان مقاله [English]
In this article, we first defined the basics of metamaterials and electromagnetic absorbers, and then investigated the CR-SRR resonator using metamaterial absorbers. One of the features of this design and simulated structure is much smaller dimensions than the previously designed structure, which saves its construction costs. The metamaterial designed in this article was investigated and simulated numerically and experimentally for radar and Wi-Fi applications. This metamaterial creates three resonance frequencies of GHZ 3.3, GHZ 2.5 and GHZ 1.8. The total dimensions of the simulated unit cell are 8 × 8 × 274.1 mm. 3.3 GHz frequency is used in weather radar. The 20.5GHz frequency is widely used in Wi-Fi for high-bandwidth and high-speed applications. The design of the metamaterial resonator with optimized dimensions increases the bandwidth to more than 32% and improves the dispersion parameter S to 50.60% in the Wi-Fi frequency range. These features have increased the sensitivity and distinctive performance of the metamaterial resonator simulated in this article.