Kevin Morris
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View article: Revolutionizing Tuberculosis Prediction: A Cutting-Edge Approach
Revolutionizing Tuberculosis Prediction: A Cutting-Edge Approach Open
The diversity of human biological systems and lifestyles requires specialized medical treatments in healthcare. In response to this need, this paper proposes a robust AI-based tuberculosis prediction model using Machine Learning (ML). This…
View article: Modeling, Design, and Application of Analog Pre-Distortion for the Linearity and Efficiency Enhancement of a K-Band Power Amplifier
Modeling, Design, and Application of Analog Pre-Distortion for the Linearity and Efficiency Enhancement of a K-Band Power Amplifier Open
This paper presents the theory, design, and application of a dual-branch series-diode analog pre-distortion (APD) linearizer to improve the linearity and efficiency of a K-band high-power amplifier (HPA). A first-of-its-kind, frequency-dep…
View article: Modelling, Design, and Application of Analog Pre-Distortion for the Linearity and Efficiency Enhancement of a K-Band Power Amplifier
Modelling, Design, and Application of Analog Pre-Distortion for the Linearity and Efficiency Enhancement of a K-Band Power Amplifier Open
This paper presents the theory, design, and application of a dual-branch series-diode analog pre-distortion (APD) linearizer to improve the linearity and efficiency of a K-band high power amplifier (HPA). A first-of-its-kind, frequency-dep…
View article: A Broadband Asymmetrical Doherty Power Amplifier With Optimized Continuous Mode Harmonic Impedances
A Broadband Asymmetrical Doherty Power Amplifier With Optimized Continuous Mode Harmonic Impedances Open
This article presents a design methodology for an asymmetrical Doherty Power Amplifier (DPA) which achieves a high average efficiency at back off across its operating bandwidth. It is shown that by combining continuous modes with post matc…
View article: A High-Performance Transfer Learning-Based Model for Microwave Structure Behavior Prediction
A High-Performance Transfer Learning-Based Model for Microwave Structure Behavior Prediction Open
Microwave structure behavior prediction enables the estimation of circuit response over a frequency range, playing a crucial role in the design of radio frequency (RF) structures. Deep neural network (DNN) approaches have demonstrated thei…
View article: A High-Performance Transfer Learning-Based Model for Microwave Structure Behavior Prediction
A High-Performance Transfer Learning-Based Model for Microwave Structure Behavior Prediction Open
Microwave structure behavior prediction enables the estimation of circuit response over a frequency range, playing a crucial role in the design of radio frequency (RF) structures. Deep neural network (DNN) approaches have demonstrated thei…
View article: A High-Performance Transfer Learning-Based Model for Microwave Structure Behavior Prediction
A High-Performance Transfer Learning-Based Model for Microwave Structure Behavior Prediction Open
Microwave structure behavior prediction enables the estimation of circuit response over a frequency range, playing a crucial role in the design of radio frequency (RF) structures. Deep neural network (DNN) approaches have demonstrated thei…
View article: Transfer Learning for the Behavior Prediction of Microwave Structures
Transfer Learning for the Behavior Prediction of Microwave Structures Open
Microwave structures behavior prediction is an important research topic in radio frequency (RF) design. In recent years, deep-learning-based techniques have been widely implemented to study microwaves, and they are envisaged to revolutioni…
View article: Transfer Learning for the Behavior Prediction of Microwave Structures
Transfer Learning for the Behavior Prediction of Microwave Structures Open
Microwave structures behavior prediction is an important research topic in radio frequency (RF) design. In recent years, deep-learning-based techniques have been widely implemented to study microwaves, and they are envisaged to revolutioni…
View article: Highly Efficient 3-Bit Digital Power Amplifier for OFDM Waveform Amplification
Highly Efficient 3-Bit Digital Power Amplifier for OFDM Waveform Amplification Open
In this work, we present a digital power amplifier (DPA) and a signal-optimized control technique suitable for the amplification of orthogonal frequency division multiplexing (OFDM). OFDM is a high peak-to-average power ratio (PAPR) signal…
View article: Highly Efficient 3-Bit Digital Power Amplifier for OFDM Waveform Amplification
Highly Efficient 3-Bit Digital Power Amplifier for OFDM Waveform Amplification Open
In this work, we present a digital power amplifier (DPA) and a signal-optimized control technique suitable for the amplification of orthogonal frequency division multiplexing (OFDM). OFDM is a high peak-to-average power ratio (PAPR) signal…
View article: Highly Efficient Three-Bit Digital Power Amplifier for OFDM Waveform Amplification
Highly Efficient Three-Bit Digital Power Amplifier for OFDM Waveform Amplification Open
In this work, we present a digital power amplifier (DPA) and a signal-optimized control technique suitable for the amplification of orthogonal frequency division multiplexing (OFDM). OFDM is a high peak-to-average power ratio (PAPR) signal…
View article: On the effect of S-parameter stability of antenna and coupler on electrical balance duplexing
On the effect of S-parameter stability of antenna and coupler on electrical balance duplexing Open
Electrical Balance Duplexers (EBDs) provide transmit-receive isolation to implement a form of self-interference cancellation to facilitate simultaneous transmission and reception from a single antenna in systems like In-Band Full-duplex (I…
View article: How Stability of Hybrid Coupler Characteristic Affects Front-End Isolation of In-Band Full Duplex System
How Stability of Hybrid Coupler Characteristic Affects Front-End Isolation of In-Band Full Duplex System Open
In In-Band Full Duplex (IBFD) transceivers, Electrical Balance Duplexers (EBDs) provide Transmit (TX)-Receive (RX) isolation to implement a form of self-interference (SI) cancellation to facilitates simultaneous transmission and reception …
View article: Quantization of Impedance Stability in Frequency Domain
Quantization of Impedance Stability in Frequency Domain Open
A method based on Sample Standard Deviation (SSD) is suggested here to quantify impedance stability in frequency domain. Firstly, impedance instability factor, δ T , is introduced as an indicator of that could be used for impeda…
View article: Gaussian Pulse Characterization of RF Power Amplifiers
Gaussian Pulse Characterization of RF Power Amplifiers Open
This work presents a new RF power amplifier characterization technique based on a Gaussian pulse, which is shown to approximate the envelope of a multicarrier signal with 0.5% error around the peaks. The standard deviation of the Gaussian …
View article: MINIATURIZED BROADBAND QUADRATURE HYBRID COUPLER WITH PHASE SHIFTER
MINIATURIZED BROADBAND QUADRATURE HYBRID COUPLER WITH PHASE SHIFTER Open
View article: Tunable Frequency-Division Duplex RF Front End Using Electrical Balance and Active Cancellation
Tunable Frequency-Division Duplex RF Front End Using Electrical Balance and Active Cancellation Open
This paper presents a novel, tunable, frequency-division duplexing radio frequency (RF) front end that combines passive and active self-interference (SI) cancellation. An electrical-balance duplexer is used to passively cancel transmitter …
View article: AN OPTIMIZATION-BASED DESIGN TECHNIQUE FOR MULTI-BAND POWER AMPLIFIERS
AN OPTIMIZATION-BASED DESIGN TECHNIQUE FOR MULTI-BAND POWER AMPLIFIERS Open
View article: Data from the paper Electrical Balance Duplexer field trials in a high speed rail scenarios
Data from the paper Electrical Balance Duplexer field trials in a high speed rail scenarios Open
Raw measurement data from high speed trains as described in the paper. Data created during EPSRC Impact Acceleration Award (IAA) project on flexible duplexing for LTE Modems with project partner u-blox.
View article: Underlying data for paper: Dynamic Performance of Electrical Balance Duplexing in a Vehicular Scenario
Underlying data for paper: Dynamic Performance of Electrical Balance Duplexing in a Vehicular Scenario Open
Raw measurement data from vehicle mounted antennas as described in the paper.
View article: Passive and Active Electrical Balance Duplexers
Passive and Active Electrical Balance Duplexers Open
Electrical balance duplexing enables simultaneous transmit and receive from a single antenna; however, the transmit-to-receive isolation depends on the ability of the balancing algorithm to determine the correct balancing impedance. A nove…
View article: Improved Reactance-Compensation Technique for the Design of Wideband Suboptimum Class-E Power Amplifiers
Improved Reactance-Compensation Technique for the Design of Wideband Suboptimum Class-E Power Amplifiers Open
A reactance-compensation technique has been introduced recently for the design of wideband class-E power amplifiers (PAs). With this technique, the load resistance can be transformed to an optimal complex drain impedance in a broad frequen…
View article: Electrical balance duplexing for small form factor realization of in-band full duplex
Electrical balance duplexing for small form factor realization of in-band full duplex Open
Transceiver architectures utilizing various self-interference suppression techniques have enabled simultaneous transmission and reception at the same frequency. This full-duplex wireless offers the potential for a doubling of spectral effi…