A broadband slant polarized cavity backed microstrip-fed wide-slot antenna array

摘要

This article deals with the design of a broadband cavity-backed microstrip-fedwide-slot antenna array for L-band applications. For verification purpose, asample 1 × 4-element antenna array has been designed, manufactured andtested. Experimental results have shown satisfactory agreement with the simulation.The proposed antenna array exhibits a measured impedance bandwidthof 1.4 GHz (90%) with frequency of 0.85 to 2.25 GHz and the gain is higherthan 11 dBi. The designed antenna has small size and low weight and can befabricated using a low-cost fabrication process for easy integration with RF circuitsand microwave components. This work is useful for some radar applicationsand radio frequency identification systems.