Title :
An inductor-less LTE receiver using an 8-path filter for TX leakage suppression
Author :
Elmaghraby, Adel ; Fischer, Georg ; Weigel, Robert ; Ussmueller, T.
Author_Institution :
Inst. for Electron. Eng., Univ. of Erlangen-Nuremberg, Erlangen, Germany
Abstract :
In this paper, an inductor-less mobile radio receiver is proposed. An 8-path band pass filter is employed at the input of the receiver to provide TX leakage suppression. The receiver is designed for LTE and UMTS lower bands and tested for worst case duplex distance of 32 MHz. The filter can be programmed to trade the noise degradation for TX suppression. For 0.3 dB noise degradation, IIP2 and IIP3 improvements can reach 17 and 11 dB respectively. The receiver has been fabricated in a 28 nm CMOS technology.
Keywords :
3G mobile communication; CMOS integrated circuits; Long Term Evolution; band-pass filters; 8-path filter; CMOS technology; IIP2 improvements; IIP3 improvements; TX leakage suppression; UMTS; band pass filter; duplex distance; inductor-less LTE receiver; inductor-less mobile radio receiver; noise degradation; size 28 nm; Band-pass filters; Clocks; Degradation; Generators; Insertion loss; Noise; Receivers; 8-phase generator; Inductor-less; LTE; N-path filters; TX leakage suppression;
Conference_Titel :
Silicon Monolithic Integrated Circuits in Rf Systems (SiRF), 2014 IEEE 14th Topical Meeting on
Conference_Location :
Newport Beach, CA
DOI :
10.1109/SiRF.2014.6828503
