In this paper, Omni-directional ZOR antenna is presented which finds its application for L-Band. L-band covers frequency range from 1–2 GHz and is used for various applications such as radar, satellite, Global Positioning Systems (GPS), telecommunication use, and terrestrial communications. The proposed antenna design is based on one of the applications of Composite Right Left-Handed Transmission Line (CRLH-TL). Antenna design is a combination of two Split Ring Resonators (SRR) in which outer ring combination are of circular shape and inner ring combination is a square shape. The unit cell of proposed structure comprises of metallic patch at the top of dielectric substrate FR4. The overall dimension of proposed antenna is 12 mm × 12 mm. The -10 dB bandwidth achieved is 20 MHz ranging from 1810 to 1830 MHz with respect to the center frequency of 1820 MHz. The results obtained in this paper is simulated using Ansys-HFSS 19.1v which is based on Finite Element Method (FEM). To prove the Omni-directional radiation pattern, uniform current distribution and 2-D plots are plotted. Beta versus frequency plot is portrayed which confirms the ZOR behavior of the antenna. Mesh size is kept at λ/20 mm so that results obtained are much pre-sized. The proposed antenna is fabricated and tested inside the Anechoic-Chamber, and the measured and the simulated results are almost similar to each other.