Title :
A direct-conversion RF transmitter for 4G LTE applications
Author :
Jian-Ming Wu ; Ming-Yin Ko ; Kang-Chun Peng ; Sheng-Fuh Chang
Author_Institution :
Dept. of Electron. Eng., Nat. Kaohsiung Normal Univ., Kaohsiung, Taiwan
Abstract :
In this paper, a 2.6 GHz direct-conversion radio frequency (RF) transmitter module is implemented using application-specific integrated circuits based on a link budget for fourth generation (4G) long term evolution (LTE) applications. It consists of a modulator, a bandpass filter (BPF), and a power amplifier (PA). The power consumption of the RF transmitter is 1.8 W. The measurements of the RF transmitter are made, revealing that a gain is 52.15 dB, a single sideband (SSB) output power is 25.15 dBm, a local oscillator (LO) leakage is -32.1 dBc, a sideband suppression is 54.47 dB, and the error vector magnitude (EVM) of a quadrature phase shift keying (QPSK) signal is 2.66%.
Keywords :
4G mobile communication; Long Term Evolution; band-pass filters; power amplifiers; radio transmitters; 4G LTE applications; QPSK signal; application-specific integrated circuits; bandpass filter; direct-conversion RF transmitter; direct-conversion radio frequency transmitter module; error vector magnitude; fourth generation long term evolution applications; frequency 2.6 GHz; gain 52.15 dB; local oscillator leakage; power 1.8 W; power amplifier; power consumption; quadrature phase shift keying; Amplitude modulation; Band-pass filters; Gain; Radio frequency; Radio transmitters;
Conference_Titel :
Next-Generation Electronics (ISNE), 2013 IEEE International Symposium on
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-4673-3036-7
DOI :
10.1109/ISNE.2013.6512361
