A 0.77 mW 2.4 GHz RF Front-End With -4.5 dBm In-Band IIP3 Through Inherent Filtering

This letter describes low-power design techniques that are demonstrated with a 2.4 GHz RF front-end consuming 0.77 mW while having a -4.5 dBm in-band third-order intermodulation intercept point (IIP3), a noise figure (NF) of 6.3 dB, and a spurious-free dynamic range (SFDR) up to 62.8 dB. Cross-coupl...

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Bibliographic Details
Published inIEEE microwave and wireless components letters Vol. 26; no. 5; pp. 352 - 354
Main Authors Li Xu, Chun-Hsiang Chang, Onabajo, Marvin
Format Journal Article
LanguageEnglish
Published IEEE 01.05.2016
Subjects
Amplification
Capacitance
Consumption
Cross coupling
Filtering
Gain
Inductors
Intermodulation
Linearity
Linearization
LNA
low-power radio frequency front-end design
mixer
Mixers
Noise levels
Radio frequency
Receivers
subthreshold biasing
weak inversion
subthreshold biasing
mixer
weak inversion
LNA
low-power radio frequency front-end design
Linearization
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Summary:This letter describes low-power design techniques that are demonstrated with a 2.4 GHz RF front-end consuming 0.77 mW while having a -4.5 dBm in-band third-order intermodulation intercept point (IIP3), a noise figure (NF) of 6.3 dB, and a spurious-free dynamic range (SFDR) up to 62.8 dB. Cross-coupling capacitors in the active mixer alleviate the gain loss due to parasitic capacitances. They also provide paths from the common sources of the switching stage to the low-noise amplifier load, forming inductor-capacitor filters that improve linearity. The proposed RF front-end was fabricated in a 130 nm CMOS process to exemplify the design techniques with specifications for ZigBee applications.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1531-1309
1558-1764
DOI:10.1109/LMWC.2016.2548983