Plate-laminated slotted-waveguide fed 2×3 planar inverted f antenna array

Substrate Integrated waveguide based 6-element array of Planar Inverted F antenna (PIFA) has been proposed and analyzed parametrically. The antenna is fed with coupled transverse slots on a plate laminated waveguide cavity to ensure wide bandwidth and simplicity of feeding network. The two-layer structure has one layer dedicated for feeding network and the other layer dedicated for radiating elements. A good return loss and standing wave ratio of 2:1 has been achieved while maintaining properties of typical PIFA.