A Measurement Method to Mitigate Temperature Effects in Nanometer CMOS RF Power Amplifiers

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Abstract

We present a measurement method to properly take temperature effects in deep nanometer complementary metal-oxide semiconductor (CMOS) power amplifiers (PAs) into account. By means of pulsed radio frequency (RF) power measurements the amplifier performance degradation caused by semiconductor self-heating is analyzed and the circuit's thermal time constant is derived. The proposed measurement technique supports automated controlling of equipment and automated data extraction using a Matlab framework. For a 28nm CMOS PA accuracy improvement between simulated and measured data of 5% in terms of power-added efficiency (PAE) and 2.2 dB in terms of saturated output power is achieved. When applying the proposed measurement technique the active die junction temperature reduces from 105°C to 45°C for saturated operation.
Original languageEnglish
Title of host publicationMicroelectronics (Austrochip), 22nd Austrian Workshop on
EditorsMichael Hutter
Pages53-57
Number of pages5
ISBN (Electronic)9781479972432
DOIs
Publication statusPublished - Oct 2014

Fields of science

  • 202019 High frequency engineering
  • 202038 Telecommunications
  • 202 Electrical Engineering, Electronics, Information Engineering

JKU Focus areas

  • Mechatronics and Information Processing

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