DESIGN OF CONCURRENT LOW-NOISE AMPLIFIER FOR MULTI-BAND APPLICATIONS | Zendy

Gao-Li Ning | Zendy; Zhenya Lei | Zendy; Longjun Zhang | Zendy; Rong Zou | Zendy; LiDong Shao | Zendy

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DESIGN OF CONCURRENT LOW-NOISE AMPLIFIER FOR MULTI-BAND APPLICATIONS

Author(s) -

Gao-Li Ning,

Zhenya Lei,

Longjun Zhang,

Rong Zou,

LiDong Shao

Publication year - 2011

Publication title -

progress in electromagnetics research c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.341

H-Index - 34

ISSN - 1937-8718

DOI - 10.2528/pierc11052405

Subject(s) - low noise amplifier , return loss , noise figure , electronic engineering , linearity , wimax , electrical engineering , electrical impedance , noise (video) , amplifier , computer science , transformer , input impedance , effective input noise temperature , noise measurement , noise temperature , engineering , telecommunications , acoustics , physics , phase noise , noise reduction , wireless , cmos , voltage , image (mathematics) , artificial intelligence , antenna (radio)

A concurrent multi-band low-noise amplifier (LNA) for both WLAN and WiMAX applications covering 2.4-2.7GHz, 3.3- 3.8GHz and 5.1-5.9GHz is mainly investigated. The proposed LNA consists of two cascaded common-source stages and employs stepped- impedance transformers and series and shunt feedback techniques to obtain good return loss, low noise and high linearity simultaneously. Test results show that the LNA features input and output return loss of 12dB, gain of 21dB, and noise figure of 2dB across the three bands of operation, which are the state of the art among the counterparts.

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