Compact corner truncated triangular patch antenna for WiMax application

The design of a small short-circuited triangular patch antenna with truncated corner has been introduced. By placing two shorting walls with a V-shaped slot patch, two resonant modes can be excited simultaneously. This antenna structure has been designed for covering (2.5-2.55GHz) and (3.4 to 3.7 GHz) WiMax bands. A substrate of low dielectric constant is selected to obtain a compact radiating structure that meets the demanding bandwidth specification. The reflection coefficient at the input of the optimized V-shaped microstrip patch antenna is below -10 dB over the entire frequency band. The simulation is carried out by EMPIRE XCcel software.