Abstract:
A simple technique to design dual feed dual linearly polarized circular microstrip patch antenna with broad bandwidth, low cross polarization and high isolation is presented. Two different feed mechanisms are designed to excite a dual orthogonal linearly polarized mode from a single radiating patch for the operated frequency band at 2.4 GHz. The proposed design has a wide impedance bandwidth (26.7% for Port 1 and 30% for Port 2) and also its two input port isolation is found to be as low as -32 dB. Good broadside radiation patterns with low cross polarizations(less than -24 dB) are observed in the two principal planes. It is found that the measured results are in good agreement with simulation analysis.