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    N-way Digitally Driven Doherty Power Amplifier Design and Analysis for Ku band Applications


    Madhuwantha, Sidath and Ramabadran, Prasidh and Farrell, Ronan and Dooley, John (2018) N-way Digitally Driven Doherty Power Amplifier Design and Analysis for Ku band Applications. In: 29th Irish Signals and Systems Conference 2018, 21-22 June 2018, Queen's University Belfast.

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    Abstract

    With an increasing interest in backwards compatibility for existing satellites and the emerging satellite markets, wireless transceivers at Ku band are increasing in popularity. This paper presents the design of a four-way digitally driven Doherty amplifier, aimed at applications in Ku-band. Single tone measurements indicate a maximum drain efficiency of 53.4% at a maximum of 19.2 dBm output power. The final output power can readily be adjusted by changing the biasing in each stage accordingly. The N-way Doherty power amplifier was tested with an 800 MHz bandwidth, 64 QAM test signal aimed for future communication signal standards. An analysis of this configuration has also been performed for 2-way, 3-way and 4-way architectures.

    Item Type: Conference or Workshop Item (Paper)
    Additional Information: This publication has emanated from research conducted with the financial support of Science Foundation Ireland (SFI) and is co-funded under the European Regional Development Fund under Grant Number 13/RC/2077. The authors would like to acknowledge the help and support of RF team at NUIM, and especially to Mr. James Kinsella who helped with his valuable inputs etc.
    Keywords: N-way Doherty; Ku band; Digitally driven Doherty;
    Academic Unit: Faculty of Science and Engineering > Electronic Engineering
    Item ID: 9696
    Depositing User: Sidath Madhuwantha
    Date Deposited: 19 Jul 2018 14:10
    Refereed: Yes
    Funders: Science Foundation Ireland (SFI)
    URI:

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