Truncated Equilateral Triangular Microstrip Antenna With and Without Superstrate

This paper presents the truncated equilateral triangular microstrip antenna with superstrate is design for dualband operation with broadband characteristics. The proposed antenna also covers the C, X and Ku-band for satellite communication. The antenna structure consists of truncated corner with a dielectric superstrate that improves the performance of the radiating structure, which operates between 4 and 13 GHz at two distinct frequency bands. The proposed antenna resonates at TM10 and TM20 frequency modes for lower (4.704 GHz) and upper (9.66 GHz) resonance frequencies and its corresponding bandwidths are found to be 9.37 and 37.8 % respectively. Further, reflection coefficient, gain and radiation pattern of the proposed antenna are measured and compared with simulated results, they are in good agreement with each other.