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

fYear

2014

fDate

1-3 June 2014

Firstpage

43

Lastpage

46

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);

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits Symposium, 2014 IEEE

Conference_Location

Tampa, FL

ISSN

1529-2517

Print_ISBN

978-1-4799-3862-9

Type

conf

DOI

10.1109/RFIC.2014.6851653

Filename

6851653