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A 0.6-5.5GHz E-PHEMT broadband high-gain LNA designed by ADS

  • Beihang University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

An ultra-wide band(UWB) low noise amplifier (LNA) of bandwidth 0.6-5.5GHz, gain more than 27dB, flatness fluctuating in ±2dB, noise-figure less than 1.2dB and the input and output reflection coefficient is less than -10dB within the range of the bandwidth is designed and simulated. This LNA utilizes both series negative-feedback in the source electrode and parallel negative-feedback between the drain electrode and the gate electrode to compensate the decrease of the high frequency gain. Comparing with traditional inductance negative-feedback between the drain electrode and the gate electrode, this adding resistance series capacitance feedback can improve gain-flatness and expand bandwidth obviously. Furthermore, this design adopt two stage cascade technology to achieve high gain and a transmission line of TL29 is used to achieve broadband match of an input and output port. Simulated in schematic and layout results are in excellent agreement.

Original languageEnglish
Title of host publicationProceedings of 2017 7th IEEE International Symposium on Microwave, Antenna, Propagation, and EMC Technologies, MAPE 2017
EditorsYinghong Wen
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages437-440
Number of pages4
ISBN (Electronic)9781509059287
DOIs
StatePublished - 1 Jul 2017
Event7th IEEE International Symposium on Microwave, Antenna, Propagation, and EMC Technologies, MAPE 2017 - Xi'an, China
Duration: 24 Oct 201727 Oct 2017

Publication series

NameProceedings of 2017 7th IEEE International Symposium on Microwave, Antenna, Propagation, and EMC Technologies, MAPE 2017
Volume2018-January

Conference

Conference7th IEEE International Symposium on Microwave, Antenna, Propagation, and EMC Technologies, MAPE 2017
Country/TerritoryChina
CityXi'an
Period24/10/1727/10/17

Keywords

  • low noise amplifier
  • matching circuit
  • negative feedback
  • ultra-wide band

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