A Ku-band Cascode Low Noise Amplifier using InGaAs E-mode 0.15-um pHEMT Technology

Sunwoo Kong, Seunghun Wang, Hui Dong Lee, Bong Hyuk Park, Seunghyun Jang, Seok Bong Hyun

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

4 Scopus citations

Abstract

Low-power operation and ease of system integration are increasingly important in a system using multiple amplifiers in parallel, such as a phased array. In this paper, a Kuband pseudomorphic high electron mobility transister (pHEMT) low-noise amplifier (LNA) that can be applied to such a system was designed and measured. The chip was fabricated using InGaAs Enhanced-mode (E-mode) 0.15-um pHEMT process. And by applying a cascode configuration that reuses current to the circuit, it consumes low power and has high gain. The current consumption is 5mA at 4V supply voltage, and the gain is 21.3 dB at 16 GHz. The 3-dB bandwidth of the LNA is 2.59 GHz and noise Figure (NF) is 1.46 dB at 16 GHz. OP1dB is 8.05 dBm and IP1dB is -10.8 dBm. The size of the entire chip including the electrostatic discharge (ESD) protection pad is 1.5x0.95 mm2.

Original languageEnglish
Title of host publicationGSMM 2022 - 14th Global Symposium on Millimeter-Waves and Terahertz
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages32-34
Number of pages3
ISBN (Electronic)9781665417990
DOIs
StatePublished - 2022
Event14th Global Symposium on Millimeter-Waves and Terahertz, GSMM 2022 - Seoul, Korea, Republic of
Duration: 18 May 202220 May 2022

Publication series

NameGSMM 2022 - 14th Global Symposium on Millimeter-Waves and Terahertz

Conference

Conference14th Global Symposium on Millimeter-Waves and Terahertz, GSMM 2022
Country/TerritoryKorea, Republic of
CitySeoul
Period18/05/2220/05/22

Keywords

  • InGaAs
  • Low noise amplifier
  • pHEMT

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