Push-pull power amplifier integrated with microstripleaky-wave antenna

Abstract

An X-band active integrated antenna push-pull power amplifier is presented that uses a dual feed microstrip leaky-wave antenna for both out-of-phase power combining and second harmonic tuning. This novel structure results in a compact and high efficiency power amplifier design. At the operating frequency of 8.7 GHz, a maximum measured PAE of 54% at an output power of 28.1 dBm has been achieved.