Circular Polarized Triple Band Micro-strip Patch Antenna for S-C- X Band Communication

Triple Band Micro-Strip Patch Antenna fabricated and designed for S-Band, C-Band, and X-Band Communication. Slot cutting techniques are used in patch to improve impedance matching. T shapes, F shape, and Inverted L-Slot has been designing on the patch. The designed antenna is highly circular and polarized across three bands. Symmetrical T-Slot is used to improve the bandwidth. The dimensions of the designed antenna are 2.7 * 2.7 cm2. Three notches are generated at 2.5GHz, 7.2GHz, and 10.8GHz where the value of return losses is less than −10dB, the three operating bands are S-Band, C-Band, and X-Band where impedance and axial ration bandwidth improve simultaneously. The antenna is fabricated and tested experimentally and achieved an agreement with simulated results.