Details

Autor(en) / Beteiligte

• King-Chun Tsai
• Gray, P.R.

Titel

A 1.9-GHz, 1-W CMOS class-E power amplifier for wireless communications

Ist Teil von

• IEEE journal of solid-state circuits, 1999-07, Vol.34 (7), p.962-970

Ort / Verlag

IEEE

Erscheinungsjahr

1999

Quelle

IEEE Electronic Library Online

Beschreibungen/Notizen

• This paper presents a 1-W, class-E power amplifier that is implemented in a 0.35-/spl mu/m CMOS technology and suitable for operations up to 2 GHz. The concept of mode locking is used in the design, in which the amplifier acts as an oscillator whose output is forced to run at the input frequency. A compact off-chip microstrip balun is also proposed for output differential-to-single-ended conversion. At 2-V supply and at 1.98 GHz, the power amplifier achieves 48% power-added efficiency (41% combined with the balun).