MIMO and diversity front-end arrangements for multiband multimode communication engines

摘要

Having the one or more 2GHz Rx paths with one or more W-CDMA Rx path to a receive front-end module for use in a portable communication device. The module is connected to the antenna into two separate electrical comprise at least two feed points for receiving communication signals. In addition, the module comprises a filter for filtering the communication signals in the corresponding frequency band. Cross-band isolation is achieved, for example, using a linear amplifier in the other signal path. Advantageously, the module has one or more modules, including three signal paths may be used together to achieve a MIMO / diversity functionality. ; The receive front-end module, GSM / W-CDMA, the signal path, separate cross-band