A Doherty Power Amplifier for Ultrasound Instrumentation [PDF]
Sensors, 2023 The ultrasound instrumentation uses linear power amplifiers with low power efficiency, generating unwanted heat and resulting in the deterioration of the echo signal quality of measured targets.
Hojong Choi
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Wideband Doherty Power Amplifier: A Design Approach [PDF]
Micromachines, 2022 This paper presents a simple method to design wideband Doherty power amplifiers (DPAs) based on the synthesis of a combiner network which can mimic the response of an ideal compensation of the device reactive output equivalent network and exploit the ...
Jorge Julián Moreno Rubio +2 more
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Design of Inner Matching Three-Stage High-Power Doherty Power Amplifier Based on GaN HEMT Model [PDF]
MicromachinesThis paper introduces the structure and characteristics of an internal-matching high-power Doherty power amplifier based on GaN HEMT devices with 0.25 μm process platforms from the Nanjing Electronic Devices Institute.
Renyi Li +3 more
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Design of Ultra-Wideband Doherty Power Amplifier Using a Modified Combiner Integrated with Complex Combining Impedance [PDF]
Sensors, 2023 To be compatible with future wireless communication systems, it is very necessary to extend the bandwidth of the Doherty power amplifier (DPA). In this paper, a modified combiner integrated with a complex combining impedance is adopted to enable an ultra-
Jian Chen +3 more
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A 3.2–3.6 GHz GaN Doherty Power Amplifier Module Based on a Compact Low-Loss Combiner [PDF]
MicromachinesIn this paper, a 3.2–3.6 GHz two-stage Doherty power amplifier (PA) module is proposed for fifth-generation (5G) massive multiple-input multiple-output (MIMO) base stations.
Xiyu Wang +6 more
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A Dual Load-Modulated Doherty Power Amplifier Design Method for Improving Power Back-Off Efficiency [PDF]
Sensors, 2023 In this paper, the load modulation process of a Doherty power amplifier (DPA) is analyzed to address the issue of why designed DPAs have a very low efficiency in the back-off state in some cases.
Yi Jin +4 more
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A Comparative Analysis of Doherty and Outphasing MMIC GaN Power Amplifiers for 5G Applications [PDF]
Micromachines, 2023 A comparison between a fully integrated Doherty power amplifier (DPA) and outphasing power amplifier (OPA) for fifth Generation (5G) wireless communications is presented in this paper. Both amplifiers are integrated using pHEMT transistors from the OMMIC’
Victoria Díez-Acereda +3 more
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Compact Asymmetrical Quasi-MMIC Doherty Power Amplifier [PDF]
Journal of Electromagnetic Engineering and Science, 2023 This paper presents a compact asymmetrical Doherty power amplifier (PA) based on a quasi-MMIC configuration for 5G sub-6 GHz applications. The proposed Doherty PA is composed of commercial GaN HEMTs and several passive components implemented on a silicon
Hong-Sun Yoon +4 more
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A Broadband Doherty Power Amplifier for Sub-6GHz 5G Applications
IEEE Access, 2023 This paper presents a novel and accurate procedure for designing a Doherty power amplifier (DPA) for wireless systems. The method is based on a systematic approach to designing the matching networks of both Main and Auxiliary devices, which employs an ...
Mohammad Shahmoradi +4 more
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Broadband Virtual-Stub Doherty Power Amplifier Using Asymmetric Structure
IEEE Access, 2023 The load networks of advanced Doherty power amplifiers (DPAs) have traditionally been designed according to the ABCD parameters. In this paper, design conditions as an impedance transformation condition and an effective electrical length were used to ...
Jaekyung Shin +11 more
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