A High frequency millimeter wave circular patch antenna for Radar Applications and satellite communications

This article proposes a millimeter wave circular patch microstrip antenna. The design illustrates a circular patch antenna which bears a range of 19.4-110GHz having a bandwidth of 90.6 GHz and having high resonance at frequencies of 51 GHz, 61.5 GHz, 71.8 GHz and 101 GHz. It depicts a good impedance matching at these frequencies, a decent gain and a directional radiation pattern. The material FR4 is utilized for designing the substrate of the antenna. The antenna shows a simulated gain of 8.8 dB, 8.9 dB, 7.7 dB, and 8.1 dB at the above specified operating frequencies.