A novel metamaterial rectangular CSRR with pass band characteristics at 2.95 and 5.23 GHz

This paper presents a novel rectangular complementary split ring resonator (CSRR) for 2.95 and 5.23 GHz (WLAN) frequency bands. A rigorous literature review of different metamaterial structures is done to predict the proposed rectangular CSRR structure. The proposed structure is compact in size and occupies the volume only 9 × 8 × 1.6 mm
³
, which is less as compared to the most of the maetamaterial structures studied in the literature. Retrieval of medium parameters such as magnetic permeability (μ), permittivity (ε), refractive index (n) and impedance (z) through waveguide set up is discussed in detail. The upper split gap of the proposed CSRR plays an important role in determining the pass band characteristics at 2.95 and 5.23 GHz frequency bands. Frequency reconfigurability in the proposed design is achieved by opening (OFF state) and closing (ON state) of the upper split gap. The proposed design can be easily integrated with patch antenna and can be used for providing frequency reconfiguration phenomenon. The design is intended for WLAN application.