A Ka-band High Power Frequency Doubler in SMT Package

This paper describes the development of a packaged Ka-band high power frequency doubler. The frequency doubler MMIC is developed using 0.15mum GaAs p-HEMT technology and packaged into a low cost QFN package for SMT application. This packaged frequency doubler delivers above +22dBm saturated output power of the 2nd harmonic signal with greater than 60dBc rejection of the fundamental and 3rd harmonic signal across the 28 to 30GHz band