An Inverted T and C-Shaped Slots loaded with Substrate Integrated Waveguide (SIW) Antenna for Wireless Applications

In this work, a compact substrate integrated waveguide (SIW) antenna, both the T and C shapes are inverted and loaded with slots is designed for triple band operations. This antenna has been improved by impacting slots into a rectangular cavity to achieve tri-band radiation. An inset microstrip feedline regulates the internal rectangular cavity, inverted C-shaped slots and reverted T-shaped slots of the designed antenna. The proposed antenna incorporates with size of length, width, thickness 30 × 30 × 1.6 mm3, that has been integrated on a lowcost Flame Retardant-4 dielectric substrate. It exhibits enhanced performance in terms of radiation characteristics and peak efficiency. The characteristics of return loss S11(dB)and current surface distribution have been studied through simulation and verified . Reflection coefficient, gain, and the radiation patterns of the E and H planes are illustrations for antenna parameters.