IEEE Access (Jan 2019)

A 55-65 GHz Internal Differentially Matched Silicon Power Amplifier With Spirally Folded 1:2 Balun

  • Wei Ping Cao,
  • Jinxin Li,
  • Wen-Bin Ye,
  • Jiang-An Han

DOI
https://doi.org/10.1109/ACCESS.2019.2897577
Journal volume & issue
Vol. 7
pp. 20076 – 20082

Abstract

Read online

A 55-65-GHz CMOS high power amplifier (PA) is designed with the help of a spirally folded 1:2 balun. By this size-folded balun, balance-unbalanced conversion and high-power combination are accomplished concurrently. Within the internal of PA, differential signal pairs benefit simplification of inter-stage matching topologies. The designed three-stage PA offers above 16.3-dB gain from 55.1 to 65.0 GHz. It is able to deliver 17.8-dBm output referred 1-dB compression point (P1 dB) and 22.2-dBm saturated output power (Psat) with a peak power-added efficiency of 10.9%.

Keywords