The SKY68001-31 is a hybrid, multi-band multi-chip RF front-end (RFFE) module for IoT Applications supporting CatM1/CATNB1 (half-duplex system) transceiver platforms. The module consists of the entire RF front end necessary for an LTE multi-band radio operating in low-band B5/B8/B12/B13/B17/B18/B19/B20/B26 and mid-band B1/B2/B3/B4/B25/B39/B66 frequencies. It includes Rx Low pass filters, PA with bias controller, Tx low pass harmonic filters, antenna switch and the MIPI RFFE controller.