Microstrip log periodic antenna (LPA) using inset feed

The fabrication and simulation of the inset feed log periodic antenna has been investigated with four different numbers of elements: five, seven, nine and eleven. The antennas have been modeled using microstrip lines and S parameter data from single element. The data is extracted from the momentum simulation and combined with the microstrip transmission line. The properties of antennas such as bandwidth, gain, cross-polar isolation and half power beamwidth have been investigated and compared between different elements.