Slew-rate limited envelopes for driving envelope tracking amplifiers
Document typeConference report
PublisherIEEE Microwave Theory and Techniques Society
Rights accessRestricted access - publisher's policy
This paper presents a practical application of a method for generating slew-rate limited envelopes in order to drive the dynamic supply of envelope tracking (ET) power amplifiers (PAs). The proposed method results useful to generate slower versions of the transmitted signal’s envelope to cope with the slew-rate and bandwidth limitations of envelope amplifiers. Moreover, this paper shows experimental results comparing the performance of ET when exciting the drain of a PA (based in a GaN transistor) with both the envelope of the signal and the slew-rate limited version of the envelope.
CitationMontoro, G. [et al.]. Slew-rate limited envelopes for driving envelope tracking amplifiers. A: IEEE Radio & Wireless Symposium. "2011 IEEE Radio & Wireless Symposium". Phoenix: IEEE Microwave Theory and Techniques Society, 2011, p. 17-20.