A 30dBm PA for MTC Communication in 65nm CMOS Technology

Johan Wernehag, Waqas Ahmad, Henrik Sjöland, Olof Zander, Vanja Plicanic Samuelsson

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review


In this paper the feasibility of using a fully integrated 65nm CMOS PA in future machine-type communication standards has been investigated. The integrated PA investigated shows a linear output power in VSWR 2:1 of minimum 24dBm. A VSWR of 2:1 with an associated 3.1dB front-end insertion loss corresponds to a VSWR of 5:1 at the antenna, which is a conservative number. The PAE at 1dB compression point is close to 40% for VSWR 1:1. Taking margin for modulation peak-to-average ratio of 5dB, the PAE at compression point -5dB is 31% at 2100MHz and 24% at 2600MHz. To show the possibility of multi-band operation the PA is centered at 2100MHz and then retuned to 2600MHz, indicating feasibility of a single high band PA. The gain of the two-stage PA is 27dB at 2100MHz and 24dB at 2600MHz. All simulated with a 3.3V output stage supply.
Original languageEnglish
Title of host publication2016 IEEE 7th Latin American Symposium on Circuits & Systems (LASCAS)
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Number of pages4
ISBN (Print)978-1-4673-7835-2
Publication statusPublished - 2016 Apr 14
EventLASCAS - Florianopolis, BRAZIL
Duration: 2016 Feb 28 → …


Period2016/02/28 → …

Subject classification (UKÄ)

  • Electrical Engineering, Electronic Engineering, Information Engineering


  • power amplifier
  • MTC


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