A 433MHz OOK Wake-up Transmitter with Integrated Inverse Class E in 22 nm FD-SOI

Research output: Contribution to book/conference proceedings/anthology/reportConference contributionContributedpeer-review


This paper presents an on-off keying (OOK) wake-up transmitter (TX) suitable for long-term applications at 433MHz. The architecture utilizes a surface acoustic wave (SAW) oscillator, enabling a robust carrier frequency generation, and an inverse class E output stage. The power amplifier (PA) is fully integrated on the integrated circuit (IC) and manufactured in a 22nm fully depleted silicon on insulator (FD-SOI) process. Due to the low threshold voltage of the transistors available in this technology, the circuit can be operated with a low supply voltage of 550mV. The measured DC power of the TX in sleep mode is 74nW. In laboratory measurements, the PA achieves an output power of 4.1dBm and an efficiency of 56%. The entire TX reaches an efficiency of 48%, which is to the authors best knowledge the highest value compared to the state of the art.


Original languageEnglish
Title of host publication2023 18th European Microwave Integrated Circuits Conference (EuMIC)
Number of pages4
ISBN (electronic)9782874870736
ISBN (print)979-8-3503-4833-0
Publication statusPublished - 19 Sept 2023


Title2023 18th European Microwave Integrated Circuits Conference
Abbreviated titleEuMIC 2023
Conference number18
Duration18 - 19 September 2023
Degree of recognitionInternational event
LocationMesse Berlin

External IDs

ORCID /0000-0002-6032-2576/work/146165434
ORCID /0000-0001-6778-7846/work/146166041
Scopus 85177232284
Mendeley 62a89c6c-3747-3f8c-8d68-17eea593f384



  • Wireless sensor networks, Voltage measurement, Power measurement, Transmitters, Surface acoustic waves, Power amplifiers, Threshold voltage, Inverse Class E, Wake-Up Transmitter, SAW, Sleep Mode, IoT, WSN, FD-SOI