Angular cut circular microstrip antenna for multi-band dual polarized response

Analysis and design of multi-band dual polarized circular microstrip antenna with an angular cut and pair of rectangular slot in 1000 MHz frequency range is proposed. The angular cut degenerates TMjj and TM 21 resonant modes of equivalent circular patch into two orthogonal modes to yield multi-band response. Further pair of rectangular slots optimizes the input impedance at degenerated resonant modes and also modifies the surface current distribution at them to realize bandwidth of 1 to 2% with broadside radiation pattern at each of the frequencies. The suspended configurations of proposed dual polarized antenna is also optimized, which gives more than 4 dBi of gain at each of the frequencies.