Effect of Meandered Inductor on the Resonant frequency of Metamaterial Inspired Antenna

Microstrip antennas based on Zeroth Order Resonators are simulated and developed, and it has been discovered that they are incredibly small in size. Microstrip patch is designed on FR4 epoxy substrate having relative permittivity of 4.4. The thickness of the substrate is 1.6mm. It has been amply established that the length of the meandering inductor utilized in the design is very important in determining the operating frequency of the antenna. The theory of Composite Right-Left-Hand-Transmission-Line (CRLH-TL) is employed in the design. The volume occupied by the antenna is 15.84 cm
³
which stays the same regardless of the length of the meandering lines. Simulated three distinct antennas with peak gains of 0.6dBi, 6.3dBi, and -5.8dBi at 3.3GHz, 5.6GHz, and 2.45GHz, respectively. One such antenna resonating at 3.3GHz is fabricated, and its measured resonance frequency of 3.313GHz with a peak gain of 0.4dBi is obtained. The results from simulation and measurement correspond fairly well.