A compact broadband Sierpinski gasket patch microstrip antenna

The paper proposes using a Sierpinski gasket patch to enhance the impedance bandwidth of microstrip antenna. A finite difference time domain (FDTD) method full wave simulator Fidelity™ is used to simulate the proposed antenna. Simulation results of a Sierpinski patch microstrip antenna and their comparison with simulation results of a corresponding conventional triangular patch antenna are included in the paper. The results show that using a Sierpinski shaped patch greatly increases the impedance bandwidth of the microstrip antenna. Using an inhomogeneous substrate along with the Sierpinski patch is also considered. Simulation results of both Sierpinski patch microstrip antennas (SPMA) with inhomogeneous and homogeneous substrates are presented and compared.