Title :
An integrated CMOS passive transmitter leakage suppression technique for FDD Radios
Author :
Tong Zhang ; Suvarna, Apsara Ravish ; Bhagavatula, Vijayakumar ; Rudell, J.C.
Author_Institution :
Dept. of Electr. Eng., Univ. of Washington, Seattle, WA, USA
Abstract :
An integrated passive transmitter (TX) leakage suppression technique is proposed for FDD Radios. A Four Port Canceller (FPC) serves a dual function as a receiver (RX) input matching network, and provides an auxiliary path from TX to RX, used for leakage cancellation, without degrading the RX noise figure (NF). The FPC is integrated with a low noise amplifier (LNA) and an emulated power amplifier (PA) in 40nm CMOS process. A cancellation of 23dB is achieved with a negligible power consumption and noise penalty.
Keywords :
CMOS analogue integrated circuits; integrated circuit noise; low noise amplifiers; power amplifiers; radio receivers; radio transmitters; CMOS process; FDD radio; FPC; LNA; NF; PA; RX; TX; four port canceller; frequency division duplexing; gain 23 dB; integrated CMOS passive transmitter leakage suppression technique; low noise amplifier; noise figure; power amplifier; receiver input matching network; size 40 nm; Couplings; Multiaccess communication; Noise figure; Power demand; Receivers; Spread spectrum communication; Fully Passive; Interference suppression; SAW-Less Transceivers; Transmitter leakage; Wideband Code Division multiple access (WCDMA);
Conference_Titel :
Radio Frequency Integrated Circuits Symposium, 2014 IEEE
Conference_Location :
Tampa, FL
Print_ISBN :
978-1-4799-3862-9
DOI :
10.1109/RFIC.2014.6851653
