Design of flag-shaped 3-element array antenna for directive radiation in Ku-band applications

In this article, Antenna with flag-shaped radiating elements in antipodal configuration is proposed. The design and the study focuses on geometrical parameters like length of the patch, width of the flared structure to enhance the operability of the antenna in Ku-band spectrum. The proposed antenna is designed and simulated in ANSYS HFSS ver15.0 and the characteristic features obtained after simulation indicates that the antenna operates from 11.1293 GHz to 19.18 GHz. The proposed antenna is configured into an array with 3-elements. The characterization of antenna array is done in terms of return loss, isolation and radiation performance. The array configuration has improved the directive radiation performance.