A novel ultra wideband transformer-feedback LNA

Hui I. Wu*, Tsung-Ting Lin, Chih-Peng Lin, Christina Jou, Pei Yuan Chiang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Scopus citations

Abstract

A 3-10 GHz wide-band low noise amplifier with novel input matching mechanism is presented in this letter. The proposed circuit uses reactive-feedback and transistor's intrinsic gate-drain capacitor as input matching network to achieve a simulated -10dB input reflection coefficient from 3.1 GHz to 10.6 GHz. The fabricated wideband LNA achieves a simulated power gain (S21) of about 10 dB from 3.1 G to 10.6 GHz, and noise figure of 2.72-3.26 dB from 3.1 G to 10.6 GHz. The input 1 dB compression point and input IP3 (IIP3) at 3.1 GHz are about -18.5 and -12 dBm, respectively. The DC supply voltage and power consumption is 1.5V(-) and 15 mA, respectively.
Original languageEnglish
Title of host publicationPIERS 2008 HANGZHOU: PROGRESS IN ELECTROMAGNETICS RESEARCH SYMPOSIUM, VOLS I AND II, PROCEEDINGS
EditorsJA Kong
Pages86-89
StatePublished - 2008
EventProgress in Electromagnetics Research Symposium 2008, PIERS 2008 Hangzhou - Hangzhou, China
Duration: 24 Mar 200828 Mar 2008

Publication series

Name Progress in Electromagnetics Research Symposium
ISSN (Print)1559-9450

Conference

ConferenceProgress in Electromagnetics Research Symposium 2008, PIERS 2008 Hangzhou
CountryChina
CityHangzhou
Period24/03/0828/03/08

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  • Cite this

    Wu, H. I., Lin, T-T., Lin, C-P., Jou, C., & Chiang, P. Y. (2008). A novel ultra wideband transformer-feedback LNA. In JA. Kong (Ed.), PIERS 2008 HANGZHOU: PROGRESS IN ELECTROMAGNETICS RESEARCH SYMPOSIUM, VOLS I AND II, PROCEEDINGS (pp. 86-89). ( Progress in Electromagnetics Research Symposium).