ENGINEERING RESEARCH PAPERS

power amplifier IEEE PAPER 2017




3.0-3.6 GHz Wideband, over 46% Average Efficiency GaN Doherty Power Amplifier with Frequency Dependency Compensating Circuits
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Abstract A wideband GaN Doherty power amplifier (DPA) for 4G/LTE-Advanced base stations is presented. To break the inherent narrow band limitation of conventional DPA, a frequency dependency compensating circuit and a modified/4 inverter incorporating

A Fully Integrated Dual-Band WLP CMOS Power Amplifier for 802.11 n WLAN Applications
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Abstract A fully integrated dual-band CMOS power amplifier (PA) is developed for 802.11 n WLAN applications using wafer-level package (WLP) technology. This paper presents a detailed design for the optimal impedance of dual-band PA (2 GHz/5 GHz PA) output

Wideband Millimeter Wave Test Bed for 60 GHz Power Amplifier Digital Predistortion
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CONCLUSION This new, flexible millimeter wave test system is capable of very wideband signal generation and analysis to research amplifier DPD at 60 GHz. Key components of the test bed include the M8195A AWG, VDI WR15 compact up-and downconverters, wideband

Balancing Thermal and Electrical Packaging Requirements for GaN Microwave and Millimeter-Wave High Power Amplifier Modules
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Abstract A method for balancing thermal and electrical packaging requirements for gallium nitride (GaN) high power amplifier (HPA) modules is presented. The goal is to find a design approach that minimizes the junction temperature of the GaN so that it is reliable and has

Asymmetrically-Driven Current-Based Chireix Class-F Power Amplifier Designed using an Embedding Device Model
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Abstract Model-based nonlinear embedding is applied for the first time to the design of an asymmetrically-driven class-F Chireix power amplifier (PA). The embedding model of a 15 W GaN HEMT is used to determine the optimum load impedances for the fundamental and

Realization and optimization of a 1 ns pulsewidth multi-stage 250 kW peak power monolithic Yb doped fiber amplifier at 1064 nm
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ABSTRACT We present a simple way to achieve and optimize hundreds of kW peak power pulsed output using a monolithic amplifier chain based on solid core double cladding fiber tightly packaged. A fiber pigtailed current driven diode is used to produce nanosecond

A Low Power , Low Noise Amplifier for Recording Neural Signals
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ABSTRACT The design of a low power amplifier for recording EEG signals is presented. The low noise design techniques are used in this design to achieve low input referred noise that is near the theoretical limit of any amplifier using a differential pair as input stage. To record

Linear CMOS Power Amplifier for WiMAX Application
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Abstract CMOS power amplifier is field of interest of developers now a days due to high demand of mobility requirement with higher data transfer speed. Pas are the most power consuming part and main contributor in transceiver chain. Since we have limited power

A 6 16 GHz GaN Distributed Power Amplifier MMIC Using Self-bias
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Abstract The self-biasing circuit through a feedback resistor is applied to a gallium nitride (GaN) distributed power amplifier (PA) monolithic microwave circuit (MMIC). The self-biasing circuit is a useful scheme for biasing depletion-mode compound semiconductor devices with

Review on Power Amplifier for WSN Applications
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Abstract- Power amplifier is one of the important parts of transceiver. The main important parameter for power amplifier is output power and power added efficiency (PAE). There are various technologies used for power amplifiers designing such as CMOS, p HEMT GaAs,

Design of out phasing Power Amplifier Based on LDMOS
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Abstract The intention of this work was to design a power amplifier at 400-900MHz based on LDMOS (Lateral Double diffused MOS) technology and to analyze the behavior of the design considering memory effects and nonlinear distortions. The MRF6V3090N and two

High Efficiency High Power Resonant Cavity Amplifier for Accelerator Applications
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Abstract Diversified Technologies, Inc.(DTI) designed and built a unique integrated resonant cavity combined (SSA) for particle accelerator applications, initially focused on Fermilabs Proton Improvement Plan-II (PIP-II). DTIs Phase I SBIR prototype demonstrated high power

Optimization and Linearization of the Power Amplifier
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ABSTRACT The power amplifier is an important part of mobile communication, thus it should give ideal linear and amplified output but due to noise and internal memory effect, it generates non linear output. It is observed that filtering doesnt eliminate all the

E-band 1 W-class GaAs PHEMT Power Amplifier MMIC
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E-band wireless communication systems are expected to be increasingly used for fiber extension in fixed networks in order to support internet data transmission increased by the introduction of the third and fourth generation (3G/4G) of wireless mobile

Digitally Controlled Microwave Power Amplifier Design Techniques for Wireless Communications
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Current cell phone handsets use many communication standards, which are part of the evolution of wireless communication technology. 2G communication was focused on voice only. The newer generation standards like WCDMA and LTE focus on high-speed wireless

Development of High Power RF Amplifier System for the KBSI RFQ
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Abstract KBSI (Korean Basic Science Institute) has developed a compact accelerator system for generation of fast neutron by lithium beam of 2.7 MeV/u. The facility consists of 28 GHz SC-ECR ion source, LEBT, RFQ and DTL. The developed RFQ accelerator provides lithium

Linearization of Power Amplifier using the Modified Feed Forward Method
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Abstract-A modified circuit for improving linearization of power amplifier based on the model of the Feed Forward circuit amplifier is proposed. With the help of mathematical model for the single power amplifier , the circuit is simulated and a demonstrator is fabricated and

Analysis of Gain Characteristic of Erbium Doped Fiber Amplifier (EDFA) with Pump Power and Fiber Length
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Abstract In this study our main objective is to design new configuration of EDFA (Erbium Doped Fiber Amplifier ) to obtain higher gain characteristics in conventional band in terms of pump power and fiber length using optic system. The pump power is set at 980nm. The

Design and Characterisation of Low Power Folded-Cascode Operational Amplifier
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ABSTRACT: The trend towards low voltage low power silicon chip systems has been growing rapidly due to the increasing demand of smaller size and longer battery life for portable applications in all marketing segments including telecommunications, medical,

A Low- Power High-Gain Low Noise Amplifier For Wake-Up Receivers
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The recent researches are focus on the ultra-low power system like bio-medical device and IoT/IoE devices. In this case, the Wake-Up Receiver (WuRx) is absolutely necessary to make connections between devices with ultra-low power consumption. In the WuRx, the most

Low Power Reduction Techniques In Current Sense Amplifier in SRAM Cell
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Abstract In present paper, the different type of low power reduction techniques has been performed by implementing in current sense amplifier 6-T SRAM cell. The low power reduction techniques have been realized in 6-T SRAM sense amplifiers using the 90-nm 1-V

Design and Simulation of 15 W Power Amplifier for 2.4 GHz Applications
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ABSTRACT This paper presents the design and simulation of Power Amplifier (PA) at 2.4 GHz for applications. CREE CGH27015F GaN HEMT (High Electron Mobility Transistor) is used for the design. The designed power amplifier exhibits a gain more than 10dB and input

Design and Analysis of Solid State Power Amplifier at High Frequency Band
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Abstract This paper describes the operation, parameters, merits and demerits of the power amplifier . Steps for design procedure of the power amplifier have been described. Along with that importance of matching and its methods has been described. Different approaches

Digital Predistortion of Power Amplifier using Quadratic Rotation Method
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Abstract In this paper, the task of design and implementation of digital pre-distortion technique has been divided into two parts. The behavioural model of power amplifier has been developed and digital predistorters module has been developed. AM-AM

30-512 MHz Hybrid Power Amplifier Design Using GaN transistor
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ABSTRACT: In this paper, using a GaN transistor, a class AB single-ended power amplifier with 30-512 MHz frequency band and 100 W saturated output power has been designed and implemented. An electromagnetic and a thermal CAD by CST have been employed to

Class-F RF Power Amplifier with a New Load Network Configuration
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Abstract High efficiency RF power amplifiers are increasingly employed in modern mobile communication systems to reduce battery size and power supply consumption. Class-F RF power amplifiers offer improved efficiency over conventional class-B power amplifiers by

Nonlinearities in Power Amplifier and its Remedies
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Abstract Linearity performance has become a important parameter as it affects power efficiency, channel density, signal strength, and adjacent channel power ratio. To maintain high efficiency, PAs should be operated at their output saturation regions but this could not

ET power amplifier efficiency modeling and performance evaluation
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Abstract Energy consumption of next generation radio access network is posing a deep impact on CO2 emission and network operating cost. In a macro site, radio equipment dominates the power consumption. Specifically, the power amplifiers consume 70% of the

Design of Low Power Amplifier for Neural Recording Applications using Inversion Coefficient Methodology
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Abstract: Preamplifier block is the preliminary stage of Analog Front-End (AFE) design in implantable neural recoding system. Preamplifier is the crucial block, which determines the overall performance of the neural recording system. The key design parameters of neural

Development of an Audio Power Amplifier for the Management of Speaking Activities
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Abstract This study developed and evaluated the performance of a method of reducing the quiescent energy consumption in conventional class AB audio power amplifiers, which are commonly used in public address systems.The structure of a conventional class AB audio power amplifier

BEHAVIOURAL MODELLING OF MICROWAVE TRANSISTORS FOR WIDEBAND HIGH EFFICIENCY POWER AMPLIFIER DESIGN
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Page 1. BEHAVIOURAL MODELLING OF MICROWAVE TRANSISTORS FOR WIDEBAND HIGH EFFICIENCY POWER AMPLIFIER DESIGN PHD PROGRAM ON INFORMATION AND COMMUNICATIONS TECHNOLOGY 4.- Writing the thesis memory and defense PNA-X Power

Low Power Wideband Noise Amplifier for 1GHz to 10GHz Wireless Application
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ABSTRACT- A low power wideband noise amplifier (LNA) for 1GHz to 10GHz wireless has presented for wireless application in this dissertation work. Low power wideband noise amplifier is design by using resistive shunt feedback, current reuse, gain flatting techniques,

Design of high gain Low Power Operational Amplifier
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Abstract In this paper we are going to design a two stage CMOS operational amplifier and to analyses its behavior by performing AC analysis using tsmc 130nm technology of mentor graphics tool. Generally Op-Amp is an electronic device that produces high gain which is

Ultra-Low Power Reflection Amplifier using Tunnel Diode for RFID applications
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Abstract To increase backscatter efficiency and communication range in RFID systems, we propose an ultra-low power reflection amplifier using a tunnel diode. We measured the input impedance of a tunnel diode and used a compact matching circuit to provide the desired

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