A New Common-Mode Stabilization Method for a CMOS Cascode Class-E Power Amplifier with Driver Stage

• LI Zhisheng

  Department of Information Technology of Ghent University/IMEC

• BAUWELINCK Johan

  Department of Information Technology of Ghent University/IMEC

• TORFS Guy

  Department of Information Technology of Ghent University/IMEC

• YIN Xin

  Department of Information Technology of Ghent University/IMEC

• VANDEWEGE Jan

  Department of Information Technology of Ghent University/IMEC

Abstract

This paper presents a new common-mode stabilization method for a CMOS differential cascode Class-E power amplifier with LC-tank based driver stage. The stabilization method is based on the identification of the poles and zeros of the closed-loop transfer function at a critical node. By adding a series resistor at the common-gate node of the cascode transistor, the right-half-plane poles are moved to the left half plane, improving the common-mode stability. The simulation results show that the new method is an effective way to stabilize the PA.

Journal

• IEICE Transactions on Electronics

  IEICE Transactions on Electronics E95.C (4), 765-767, 2012

  The Institute of Electronics, Information and Communication Engineers

Keywords

• CMOS
• Class-E power amplifiers
• common mode
• stability
• closed-loop transfer function
• pole
• zero
• right half plane

Details

• CRID: 1390001204379428736
• NII Article ID: 10030941156
• NII Article ID: 130002135518
• NII Book ID: AA10826283
• DOI: 10.1587/transele.e95.c.765
• BIBCODE: 2012IEITE..95..765L
• ISSN: 17451353
• ISSN: 09168524
• Web Site: https://www.jstage.jst.go.jp/article/transele/E95.C/4/E95.C_4_765/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed