Systems, methods and apparatuses for cmos - high power antennas switch with the use of body switching and the substrate - surfaces diodes control in a more stacks - structure

摘要

It is proposed a cmos - antenna changeover switch in the form of a cmos spdt - switch can be referred to. The cmos - antenna changeover switch can, according to another embodiment of the invention in the case of a plurality of frequencies, approximately 900 mhz, 1,9 ghz and 2,1 ghz, are operated. The cmos - antenna changeover switch can be both a receiver switch, as also have a transmission switch. For the receiver switch can be a multi stack - transistor with body substrate circuit and source - and - connection body together with body floating - art are used, in order to have both signals with a high power for the transmission route to lock it, in that the formation of channels of the device in a from - state is prevented, as well as in the reception path to minimize the insertion loss. Exemplary embodiments of the cmos - antenna switch can be 35 dbm p 1 db in the case of two bands (for example, 900 mhz and 1,9 ghz and 2,1 ghz) providing. Furthermore, according to exemplary embodiments of the invention, a - 60 dbc second and third harmonic up to 28 dbm input power to the switch are obtained.