The ADF5901 from Analog Devices is a RF Transceiver with Frequency 24 to 24.25 GHz, Output Power(dBm) -9 to 10 dBm, Supply Voltage 0.6 to 1.4 V, Bandwidth 250 MHz, Output Power(W) 0 to 0.01 W. Tags: Surface Mount. More details for ADF5901 can be seen below.