A low profile wideband log periodic microstrip antenna design for C-band applications

In this study, a wideband and low profile microstrip log periodic monopole antenna (LPMA) design for C-band applications is presented. The proposed antenna consists of a monopole log periodic patch in the equilateral triangular dimensions with the microstrip line fed and a rectangular ground plane. The antenna has 9×19.8 mm2 overall size, thickness of 1.6 mm, 4.3 dielectric constant, and 0.02 tangent loss. According to the simulation results, the proposed antenna has a 60% bandwidth while operating in the frequency band of 4.25-7.95 GHz and 5 GHz resonance frequency. The proposed antenna was also prototyped on FR4 substrate and the results obtained from the measurements were quite similar to the simulations.