Title :
Digital RF receiver front-end with wideband operation capability for m-WiMAX
Author :
Seo, Heesong ; Choi, Inyoung ; Park, Changjoon ; Yoon, Jehyung ; Kim, Bumman
Author_Institution :
Dept. of Electr. Eng., POSTECH, Pohang, South Korea
Abstract :
A Digital RF receiver front-end with wideband operation capability is presented for m-WiMAX application. By employing sampling mixer and discrete-time filter, the receiver operates in charge domain. In addition to flexibility of the discrete-time (DT) filter, the new Non-Decimation Finite Impulse Response (FIR) filter can be cascaded to a conventional FIR filter. And we can easily increase the order of the sincn-type filtering response and achieve wideband signal process capability. The designed receiver front-end is implemented by IBM 0.13-μm RF CMOS process. The chip satisfies the m-WiMAX specification with 26.63mA from a 1.5-V supply voltage for the total system.
Keywords :
FIR filters; WiMax; broadband networks; discrete time filters; radio receivers; IBM RF CMOS process; charge domain; current 26.63 mA; digital RF receiver front-end; discrete-time filter; m-WiMAX; nondecimation finite impulse response filter; sampling mixer; sincn-type filtering response; size 0.13 mum; voltage 1.5 V; wideband operation; wideband signal process; Clocks; Finite impulse response filter; Mixers; Power harmonic filters; Radio frequency; Receivers; Digital RF; discrete-time filter; radio frequency (RF); receiver front-end; wideband;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium (RFIC), 2011 IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-8293-1
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2011.5940593
