CMOS LTE Receiver Front-End

Abstract

More recent, Long Term Evolution (LTE) has been broadly contemplated. The third generation partnership project (3GPP) proposes a Universal Mobile Telephone System (UMTS) which studies several alternative technologies before choosing Wideband Code Division Multiple Accesses (W-CDMA) for the radio access network. The continuing improvements in radio frequency (RF) front-end technology have led to many new and fascinating applications in the fourth generation (4G) wireless communications. The LTE standard takes advantage of the multi-carrier modulation scheme Orthogonal Frequency-Division Multiplexing (OFDM) to increase spectral efficiency, which demands higher linearity because of a non-constant signal envelope. LTE supports both Frequency- Division Duplex (FDD) and Time Division Duplex (TDD) with the wide range of frequency bands from 0.7 GHz to 2.7 GHz in addition to a wide number of channel bandwidth that allocated from 1.4 MHz to 20 MHz.