Abstract
This article presents a metamaterial-based single-feed circularly polarized microstrip antenna with improved gain and enhanced bandwidth. To obtain circular polarization, the two diagonally opposite corners of a square-shaped traditional microstrip patch antenna are truncated, and then the ground plane of this truncated square microstrip patch antenna is loaded with an array of proposed splitted circular metamaterial rings. The traditional patch antenna, with mitered corners, resonates at 2.4 GHz presenting the gain and bandwidth of 4.8 dBic and 500 MHz, respectively. However, on loading splitted circular metamaterial rings on its ground plane, an improvement in gain by 0.4 dBic and enhancement in bandwidth by 15 MHz is observed. The three dB axial ratio bandwidth of this composite structure is 610 MHz. The proposed metamaterial-inspired microstrip patch antenna possesses the overall size of 37.53 mm × 37.53 mm × 1.6 mm.KeywordsMicrostrip patchCircular polarizationMetamaterialHigh-frequency structure simulator (HFSS)
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
