A +22dBm IIP3 and 3.5dB NF wideband receiver with RF and baseband blocker filtering techniques

Author

Hedayati, Hajir ; Aparin, Vladimir ; Entesari, Kamran

Author_Institution

AMSC, Texas A&M Univ., College Station, TX, USA

fYear

2014

fDate

10-13 June 2014

Firstpage

1

Lastpage

2

Abstract

The real challenge in designing wide-band receivers is the ability to tolerate out of band blockers. In this paper, different blocker rejection techniques are proposed to significantly improve the linearity. The blockers are first rejected prior to the LNA, then, a novel base-band blocker filtering technique further rejects the blockers at the TIA input. A dual mixer architecture is also employed to further attenuate blockers. Finally, a very low impedance TIA is designed to improve the linearity of the entire receiver chain. The receiver has an IIP3 of +22 dBm and a NF of 3.5 dB in 0.18 μm CMOS technology.

Keywords

CMOS integrated circuits; filters; mixers (circuits); radio receivers; CMOS technology; IIP3; NF wideband receiver; RF blocker filtering techniques; baseband blocker filtering techniques; blocker rejection techniques; dual mixer architecture; size 0.18 mum; Band-pass filters; Impedance; Linearity; Mixers; Noise measurement; Receivers;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Circuits Digest of Technical Papers, 2014 Symposium on

Conference_Location

Honolulu, HI

Print_ISBN

978-1-4799-3327-3

Type

conf

DOI

10.1109/VLSIC.2014.6858419

Filename

6858419