A new Structure of Supply Modulator to Improve the Power Efficiency of RF Power Amplifiers using Envelope Tracking Technique

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Shahbazi Vahid; YAVANDHASANI JAVAD

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Journal: ELECTRONIC INDUSTRIES Year:2017 | Volume:8 | Issue:2 Page(s): 139-148

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Information Journal Paper

Title

A new Structure of Supply Modulator to Improve the Power Efficiency of RF Power Amplifiers using Envelope Tracking Technique

Author(s)

Shahbazi Vahid | YAVANDHASANI JAVAD | Issue Writer Certificate

Keywords

Multilevel supplyQ1

RF Power amplifierQ1

Envelope trackingQ1

Supply modulatorQ1

Power efficiencyQ1

Abstract

Envelope tracking is one the effective techniques of increasing the Power efficiency of RF Power amplifiers. In this method, a Supply modulator is adopted to change the supply voltage of power amplifier proportional to the envelope of the RF signal input to the RF Power amplifier. Power efficiency of this modulator greatly affects the total Power efficiency. The Supply modulator is composed of a linear amplifier and a DC-to-DC convertor. In this paper we present a new structure to increase the Power efficiency of a Supply modulator. In the proposed structure, a multi level supply is used in the linear amplifier. Our analysis and simulations results show that this technique leads to 11% improvement of the Supply modulator Power efficiency.

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APA: Copy

Shahbazi, Vahid, & YAVANDHASANI, JAVAD. (2017). A new Structure of Supply Modulator to Improve the Power Efficiency of RF Power Amplifiers using Envelope Tracking Technique. ELECTRONIC INDUSTRIES, 8(2 ), 139-148. SID. https://sid.ir/paper/229627/en

Vancouver: Copy

Shahbazi Vahid, YAVANDHASANI JAVAD. A new Structure of Supply Modulator to Improve the Power Efficiency of RF Power Amplifiers using Envelope Tracking Technique. ELECTRONIC INDUSTRIES[Internet]. 2017;8(2 ):139-148. Available from: https://sid.ir/paper/229627/en

IEEE: Copy

Vahid Shahbazi, and JAVAD YAVANDHASANI, “A new Structure of Supply Modulator to Improve the Power Efficiency of RF Power Amplifiers using Envelope Tracking Technique,” ELECTRONIC INDUSTRIES, vol. 8, no. 2 , pp. 139–148, 2017, [Online]. Available: https://sid.ir/paper/229627/en

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