A cross-coupled dual-loop feedback power amplifier driver

• This paper presents a wide-band power amplifier (PA) driver with matched output. A dual-loop cross-coupled feedback is applied on a simple two stage core amplifier. The use of a dual-loop feedback provides a broad-band 50 Ω output match without the use of any area consuming matching networks. The PA driver exhibits a gain higher than 6.4 dB, more than +1.9dBm 1-dB compression point with S22 less than -22 dB at the output, while dissipating 42 mA from a 1.8V supply. The output IP3 is better than +13.9 dBm at 2.4 GHz.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Keyword

Broadband amplifiers

Data compression

Energy dissipation

Feedback amplifiers

Networks (circuits)

Power amplifiers

Cross coupled dual loop

Feedback power amplifier drivers

Matching networks

Machine tool drives

Publication and Content Type

ref (subject category)

kon (subject category)