Mobile Terminal RF Circuit Technology

Ever since the first mobile phones were introduced, the radio Takashi Okada transceiver circuits in mobile terminals have continued to evolve in order to produce devices that are smaller and more lightweight, offer longer talk times, and have greater capacity and coverage. In the future, they will need to evolve further still with a view to the implementation of next-generation mobile phones. This article summarizes how this technology has developed, particularly with regard to the radio transceiver circuit technology of FOMA terminals, and describes the trends of future developments.

Mobile Terminal RF Circuit Technology (PDF format:3.8MB) 10 pages