Add to ORKGClassical linear amplifiers such as A, AB and B offer very good linearity suitable for RF power amplifiers. However, its inherent low efficiency limits its use especially in base-stations that manage tens or hundreds of Watts. The use of linearization techniques such as Envelope Elimination and Restoration (EER) allow an increase of efficiency keeping good linearity. This technique requires a very fast dc-dc power converter to provide variable voltage supply to the power amplifier. In this paper, several alternatives are analyzed to implement the envelope amplifier based on a cascade association of a switched dc-dc converter and a linear regulator. A simplified version of this approach is also suitable to operate with Envelope Tracking tech...
In this paper, an interleaved multiphase buck converter with minimum time control strategy for envel...
The use of techniques such as envelope tracking (ET) and envelope elimination and restoration (EER) ...
A solution combining a multilevel converter in series with a linear regulator to obtain an envelope ...
Due to complex envelope and phase modulation employed in modern transmitters it is necessary to use ...
Modern transmitters usually have to amplify and transmit signals with simultaneous envelope and phas...
This paper presents a theoretical analysis and an optimization method for envelope amplifier. Highly...
Envelope Tracking (ET) and Envelope Elimination and Restoration (EER) are two techniques that have b...
Modern transmitters usually have to amplify and transmit signals with simultaneous envelope and ph...
Abstract — Modern transmitters usually have to amplify and transmit signals with simultaneous envelo...
Modern transmitters usually have to amplify and transmit signals with simultaneous envelope and phas...
The radio frequency (RF) power amplifier (PA) is the last block in a transmitter chain. It amplifies...
Envelope Tracking (ET) and Envelope Elimination and Restoration (EER) are techniques that have gaine...
High frequency dc-dc switching converters are used as envelope amplifiers in RF transmitters. The dc...
Modern transmitters usually have to amplify and transmit complex communication signals with simultan...
Power amplifier supplied with constant supply voltage has very low efficiency in the transmitter. A ...
In this paper, an interleaved multiphase buck converter with minimum time control strategy for envel...
The use of techniques such as envelope tracking (ET) and envelope elimination and restoration (EER) ...
A solution combining a multilevel converter in series with a linear regulator to obtain an envelope ...
Due to complex envelope and phase modulation employed in modern transmitters it is necessary to use ...
Modern transmitters usually have to amplify and transmit signals with simultaneous envelope and phas...
This paper presents a theoretical analysis and an optimization method for envelope amplifier. Highly...
Envelope Tracking (ET) and Envelope Elimination and Restoration (EER) are two techniques that have b...
Modern transmitters usually have to amplify and transmit signals with simultaneous envelope and ph...
Abstract — Modern transmitters usually have to amplify and transmit signals with simultaneous envelo...
Modern transmitters usually have to amplify and transmit signals with simultaneous envelope and phas...
The radio frequency (RF) power amplifier (PA) is the last block in a transmitter chain. It amplifies...
Envelope Tracking (ET) and Envelope Elimination and Restoration (EER) are techniques that have gaine...
High frequency dc-dc switching converters are used as envelope amplifiers in RF transmitters. The dc...
Modern transmitters usually have to amplify and transmit complex communication signals with simultan...
Power amplifier supplied with constant supply voltage has very low efficiency in the transmitter. A ...
In this paper, an interleaved multiphase buck converter with minimum time control strategy for envel...
The use of techniques such as envelope tracking (ET) and envelope elimination and restoration (EER) ...
A solution combining a multilevel converter in series with a linear regulator to obtain an envelope ...