Essays about: "Doherty power amplifier"

Found 4 essays containing the words Doherty power amplifier.

  1. 1. Hybrid Coupler for LMBA Input Match Using an Active Inductor

    University essay from Linköpings universitet/Elektroniska Kretsar och System

    Author : Karthik Doddanna; [2021]
    Keywords : LMBA; gyrator-c; active inductor; hybrid coupler; TSMC 0.18um.;

    Abstract : With the increase in demand for compact and high data rate communication systems, there is a need for high efficiency with modulated signals (PAPR 5-10 dB) for base-station power amplifiers. One of the famous architectures used to achieve this is Doherty architecture. READ MORE

  2. 2. Design of Two 28 GHz Doherty Power Amplifier Topologies with Vertical In(Ga)As Nanowire Transistors

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Simon Olson; Lucas Nilsson-Villoresi; [2020]
    Keywords : Doherty; PA; DPA; 28 GHz; Power amplifier; nanowire; transistor; In Ga As; Technology and Engineering;

    Abstract : In this Master’s thesis, two different 28 GHz Doherty power amplifiers (DPAs) are designed, for high power added efficiency (PAE), in the common source (CS) and cascoded topology respectively. The results are analyzed and compared between the two approaches. READ MORE

  3. 3. Highly Integrated Wideband Doherty Power Amplifier

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap; Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Raza Hussain; Sundas Sheikh; [2013]
    Keywords : Doherty power amplifier; GaN transistor; power amplifier; wideband power amplifier;

    Abstract : The objective of this thesis project was to design a wide band Doherty Power Amplifier (DPA) using bare die transistors. Different techniques had been applied in this thesis to make a DPA wide band while maintaining its efficiency and power. READ MORE

  4. 4. Design and Implementation of as Asymmetric Doherty Power Amplifier at 2.65 GHz in GaN HEMT Technology

    University essay from Linköpings universitet/Linköpings universitet/Elektroniska komponenterTekniska högskolan

    Author : Mohsin Mumtaz Tarar; [2011]
    Keywords : Asymmetric Doherty Power amplifier;

    Abstract : Power amplifiers are an indispensible part of the wireless communication systems. Conventional PAs provide peak efficiency at peak output power which is obtained at a certain fixed optimum resistance. These kind of amplifiers are normally called switched-mode power amplifiers (SMPAs) and are used for constant envelope signals. READ MORE