| 摘要 |
A radio frequency (RF) switch for switching an antenna port between two power amplifier ports and a receive port includes an antenna port (103), a first amplifier port (105), a second amplifier port (107) and one or more diode switches (207, 213, 215) positioned between the first amplifier port (105), second amplifier port (107) and a ground potential. One or more frequency dependent isolation sections (222, 222') are positioned between the first amplifier port (105), second amplifier port (107) and the receive port (109) so that the diode switches (207, 213, 215) are controlled using a respective control input for connecting either the first amplifier port (105), second amplifier port (107) or the receive port (109) to the antenna port (103). The invention uses few component parts and allows switching through the use of only one isolation section per frequency band. |
