Design of a compact multiband antenna on Al2O3 ceramic material substrate

A compact electrically small multiband rectangular shape microstrip patch antenna is designed and analyzed in this paper. The antenna designed with 13 × 10 mm2 radiating copper patch on Aluminium oxide high dielectric ceramic material substrate with ground plane for three different frequency application which is smaller in size compared to other available multiband antennas. The proposed antenna is designed and analyzed by using finite element method 3-D full wave electromagnetic high frequency structure simulator. From the result it is observed that, in 4.7 GHz, 9.05 GHz and 13.2 GHz resonance frequency the impedance bandwidth (VSWR ≤ 2) below -10 dB return loss obtained are 400 MHz, 200 MHz, 800 Mhz and achieved gain are 2.53 dBi, 6.72 dBi, 1.95 dBi respectively.