Fully integrated complete multi-band rf frontend system integrated circuit (ic) chip

A mobile device, comprising:

• a baseband processor;
• and
• a radio frequency (RF) frontend device coupled to the baseband processor, wherein the RF frontend device includes
• a first RF transceiver to transmit and receive RF signals within a first frequency band, the first frequency band having a first range of frequencies,
• a second RF transceiver to transmit and receive RF signals within a second frequency band, the second frequency band having a second range of frequencies, wherein the first range of frequencies is approximately ranging from 28 Giga hertz (GHz) to 39 GHz and the second range of frequencies is approximately ranging from 58 GHz to 71 GHz, and
• a frequency synthesizer coupled to the first RF transceiver and the second RF transceiver to perform frequency synthetization in a frequency spectrum including the first frequency band and the second frequency band, wherein the frequency synthesizer generates a first local oscillator (LO) signal and a second LO signal to the first RF transceiver and the second RF transceiver to enable the first RF transceiver and the second RF transceiver to transmit and receive RF signals within the first frequency band and the second frequency band respectively, and
• wherein the first RF transceiver, the second RF transceiver, and the frequency synthesizer are embedded within a single IC chip.