Systems, 1995 and apparatus for the switches of antennas power cmos high using switching of the body and a diode commance a junction of the substrate in a structure multi - stack

摘要

The embodiments of the invention may provide an antenna switch cmos, which may be designated by a cmos switch spdt. The antenna switch cmos can operate at a plurality of frequencies, for example, of around 900 mhz, 1,9 ghz and 2,1 ghz according to an embodiment of the invention. The antenna switch cmos may comprise a switch for receiving and transmitting a switch. The switch can use a transistor multi - stack with switching of the substrate of the body and the connection of the source and of the body in conjunction with a technique of floating body, in order to lock the signals of high power of emission path by preventing the formation of a channel of the device to the off state and in maintaining a low insertion loss in the reception path. Examples of embodiments of the antenna switch cmos may provide 35 dbm p 1 db to the two strips (for example 900 mhz and 1,9 ghz and 2,1 ghz). In addition, in a particular embodiment, it is possible to obtain the second and third harmonics of the dbc - 60 ;