A Novel H-shaped Slot-coupled Antenna for the Integration of Power Amplifier

This paper presents a novel H-shaped structure with the bow-tie shaped meander slot to integrate the class AB power amplifier. This compact structure is appropriate to apply to the wireless communication system. The novel H-shaped antenna has many excellent advantages over the conventional rectangular microstrip antenna such as the harmonic mode suppression, bandwidth enhancement, and the increase of the whole transmitter efficiency. This H-shaped antenna adopts slot-coupled microstrip patch structure to achieve the harmonic termination and good wideband matching. Due to the reduction of the surplus harmonic content from the nonlinear circuits, the improvement of the whole performance of the transmitter is achieved. The advantage of our novel structure is effective to decrease the additional area for the harmonic tuning network and suitable to obtain maximum output power.