Title :
An energy-efficient 2.4-GHz PSK/16-QAM transmitter
Author :
Chun-Yu Lin ; Yao-Hong Liu ; Chang-Tsung Fu ; Lakdawala, Hasnain ; Tsung-Hsien Lin
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
A 2.4-GHz energy-efficient transmitter (TX) which supports multiple modulation schemes is reported. The proposed TX is based on the phase-selector architecture, where the modulation signal is generated by interpolating among quadrature phases at RF. This TX demonstrates the capability of supporting various PSK (OQPSK, HS-OQPSK, and 8-PSK) and the 16-QAM modulations. Fabricated in a 90-nm CMOS process, the TX consumes 8.9 mW and 13.8 mW at PSK and QAM modes, respectively. The maximum data rate is 105 Mbps under -3 dBm output power and 10.6 % EVM.
Keywords :
CMOS integrated circuits; interpolation; phase shift keying; quadrature amplitude modulation; radio transmitters; 16-QAM transmitter; 8-PSK; CMOS process; HS-OQPSK; bit rate 105 Mbit/s; frequency 2.4 GHz; multiple modulation schemes; phase selector architecture; phase shift keying; power 13.8 mW; power 8.9 mW; size 90 nm;
Conference_Titel :
Solid State Circuits Conference (A-SSCC), 2012 IEEE Asian
Conference_Location :
Kobe
DOI :
10.1109/ASSCC.2012.6570802
