GaN HEMT-based Wideband Power Amplifier Integrated Antenna

A GaN HEMT-based wideband Power Amplifier Integrated Antenna (PAIA) is presented in this work. The wideband power amplifier (PA) is designed from 0.9 to 1.3 GHz at an input power of 20 dBm giving 36.5 to 38 dBm of output power and power-added efficiency (PAE) is 52 to 62 %. It is then integrated with a slotted antenna which provides 36.2 to 39.5 dBm of output power and a PAE of 50 to 63 %. To improve the performance of the PAIA, the PA is further modified which provides 38.5 to 40.5 dBm output power and PAE of 52 to 65 %. The gain is more than 17 to 20 dB over the entire operating band. Modified integrated design provides better performance and makes it suitable for modern wireless communication system