Flexible Pyralux Based Ultra-Wideband Patch Antenna

This paper describes the design, simulation, and fabrication of an ultra-wideband (UWB) antenna. A single-sided copper-clad laminate Pyralux with a copper layer’s thickness of 70 μm was used for these reasons. For the fabrication of the antenna, a conventional copper layer etching technique using hydrochloric acid was chosen. Using Ansys HFSS simulation software, the antenna was designed and simulated. The realized UWB antenna has a bandwidth of more than 11 GHz, from 1 GHz to 12 GHz, which exceeds the bandwidth of conventional antennas on rigid substrates. The impedance of the antenna’s feeding element is matched to 50 Ω. The SMA connector was soldered with hot air and SAC solder paste to the feeding element and ground patch. The scattering parameter of the produced antenna was measured with the Agilent N5421A PNA network analyzer at room temperature. The designed and realized antenna using the standard etching technique and Pyralux foil provides a cost-effective solution for the mass production of antennas while maintaining the antenna’s required characteristics.