Polar Transmitter with Pseudo-Differential Inverse Class-E Output Stage in 22 nm FD-SOI

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


This paper discusses the conceptual approach of a fully integrated polar transmitter for signal transmission in the sub-6 GHz frequency range. It investigates a compact differential inverse class-E topology as power output stage. To enable amplitude modulation without lossy DC-DC converters, a method for generating a pseudo-differential pulse width modulation is presented. A voltage controlled oscillator, phase shifters, a control interface and a current reference are also integrated on the chip. In laboratory measurements, the circuit with a compact chip area of 1.07 mm2 achieves a relative bandwidth of 71%, a maximum output power of 19.3 dBm and a PAE of 27% including bond wire and external balun losses at a low-voltage supply of 1V.


Original languageEnglish
Title of host publication14th German Microwave Conference (GeMiC) 2022
Number of pages4
Publication statusPublished - May 2022


Title14th German Microwave Conference, GeMiC 2022
Duration16 - 18 May 2022

External IDs

ORCID /0000-0002-6032-2576/work/142238523
ORCID /0000-0001-6778-7846/work/142240154


Research priority areas of TU Dresden


  • Differential Topology, FD-SOI, Inverse Class-E, Polar Transmitter, Power Amplifier