Dual-antenna dual-mode power transmitter

Abstract

A dual-antenna dual-mode power transmitter includes: a first two-phase shift amplifier and a first power amplifier electrically connected thereto, a second two-phase shift amplifier and a second power amplifier electrically connected thereto, the first power amplifier being connected to a third coupling inductor, the second power amplifier being connected to a sixth coupling inductor, the third coupling inductor being connected to an output terminal of a first switch, the sixth coupling inductor being connected to an output terminal of a second switch, the other output terminals of the third and sixth coupling inductors and an output terminal of the third switch being connected together, the operation of the two-phase shift amplifier includes zero-phase and PI-phase operation modes, and the operation of the dual-antenna dual-mode power transmitter includes a first and second single-antenna TDM mode and a first and second dual-antenna BPM mode.

Images