NASIRU ABUBAKAR - Academia.edu (original) (raw)
Iam nasiru abubakar from Gwadangaji birnin kebbi, kebbi state and currently a teacher at department of physics with electronics federal university birnin kebbi kebbi state Nigeria.
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Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria
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Papers by NASIRU ABUBAKAR
High-efficiency broadband Class-E power amplifiers (PAs) using high-order low-pass filter prototy... more High-efficiency broadband Class-E power amplifiers (PAs) using high-order low-pass filter prototype is presented. A Gallium Nitride GaN transistor was used and characterized to prescribe the optimal output impedance for the broadband Class-E operation. A sixth order low-pass filter matching network was designed and implemented for the output matching. While the output provides optimized fundamental and harmonic impedances within an octave bandwidth. The simulated results show that an optimal band of operation was realized from 1.2GHz to 2GHz with an efficiency measured from 80% to 89%. An overall power amplifier bandwidth of 0.9GHz to 2.2GHz was measured between 10W to 20W output power with gain of 10dB to 13dB and efficiency was found to be around 63% to 89% throughout the band.
FUDMA, 2018
High-efficiency broadband Class-E power amplifiers (PAs) using high-order low-pass filter prototy... more High-efficiency broadband Class-E power amplifiers (PAs) using high-order low-pass filter prototype is presented. A Gallium Nitride GaN transistor was used and characterized to prescribe the optimal output impedance for the broadband Class-E operation. A sixth order low-pass filter matching network was designed and implemented for the output matching. While the output provides optimized fundamental and harmonic impedances within an octave bandwidth. The simulated results show that an optimal band of operation was realized from 1.2GHz to 2GHz with an efficiency measured from 80% to 89%. An overall power amplifier bandwidth of 0.9GHz to 2.2GHz was measured between 10W to 20W output power with gain of 10dB to 13dB and efficiency was found to be around 63% to 89% throughout the band.
TEST ENGINEERING AND MANAGEMENT, 2020
As of late new dangers to people are seen from non-ionizing radiation exuding from different sou... more As of late new dangers to people are seen from non-ionizing radiation exuding from
different sources like electric electrical cables, GSM media transmission poles and
some more. The fundamental point of this paper is to survey the wellbeing risks of
non-ionizing radiation exuding from electrical cables and GSM telecom poles on
people and think about the consequences of the two, to see which one delivered
more impacts on human wellbeing. Introduction of people to radiation from high
electric force transmission lines and GSM poles is an incredible worry about people
since transmission lines and GSM poles are found wherever in our condition. Every
nation has its very own standard for presentation to non-ionizing radiation
dependent on rules set by the International Commission on Non-Ionizing Radiation
Protection (ICNIRP). The natural impact of these exposures is a subject of
incredible enthusiasm to specialists. A few conceivable outcomes of leukemia have
been accounted for alongside other wellbeing impacts, for example, propagation
frameworks, variety in glucose substance, neuronal issue, for example, Alzheimer,
sorrow and so on. Various papers have been distributed to contemplate the impacts
of radiation on individuals, as number of cases have just been enlisted showing the
impact of non-ionizing radiation from transmission lines and GSM poles on people.
In this paper the two wellsprings of non-ionizing radiations were broke down.
Electric electrical cables were found to have more prominent natural consequences
for human lives than telecom poles.
Keywords: Electric power lines, GSM Telecom Masts, Health hazards and Nonionizing radiation.
High-efficiency broadband Class-E power amplifiers (PAs) using high-order low-pass filter prototy... more High-efficiency broadband Class-E power amplifiers (PAs) using high-order low-pass filter prototype is presented. A Gallium Nitride GaN transistor was used and characterized to prescribe the optimal output impedance for the broadband Class-E operation. A sixth order low-pass filter matching network was designed and implemented for the output matching. While the output provides optimized fundamental and harmonic impedances within an octave bandwidth. The simulated results show that an optimal band of operation was realized from 1.2GHz to 2GHz with an efficiency measured from 80% to 89%. An overall power amplifier bandwidth of 0.9GHz to 2.2GHz was measured between 10W to 20W output power with gain of 10dB to 13dB and efficiency was found to be around 63% to 89% throughout the band.
FUDMA, 2018
High-efficiency broadband Class-E power amplifiers (PAs) using high-order low-pass filter prototy... more High-efficiency broadband Class-E power amplifiers (PAs) using high-order low-pass filter prototype is presented. A Gallium Nitride GaN transistor was used and characterized to prescribe the optimal output impedance for the broadband Class-E operation. A sixth order low-pass filter matching network was designed and implemented for the output matching. While the output provides optimized fundamental and harmonic impedances within an octave bandwidth. The simulated results show that an optimal band of operation was realized from 1.2GHz to 2GHz with an efficiency measured from 80% to 89%. An overall power amplifier bandwidth of 0.9GHz to 2.2GHz was measured between 10W to 20W output power with gain of 10dB to 13dB and efficiency was found to be around 63% to 89% throughout the band.
TEST ENGINEERING AND MANAGEMENT, 2020
As of late new dangers to people are seen from non-ionizing radiation exuding from different sou... more As of late new dangers to people are seen from non-ionizing radiation exuding from
different sources like electric electrical cables, GSM media transmission poles and
some more. The fundamental point of this paper is to survey the wellbeing risks of
non-ionizing radiation exuding from electrical cables and GSM telecom poles on
people and think about the consequences of the two, to see which one delivered
more impacts on human wellbeing. Introduction of people to radiation from high
electric force transmission lines and GSM poles is an incredible worry about people
since transmission lines and GSM poles are found wherever in our condition. Every
nation has its very own standard for presentation to non-ionizing radiation
dependent on rules set by the International Commission on Non-Ionizing Radiation
Protection (ICNIRP). The natural impact of these exposures is a subject of
incredible enthusiasm to specialists. A few conceivable outcomes of leukemia have
been accounted for alongside other wellbeing impacts, for example, propagation
frameworks, variety in glucose substance, neuronal issue, for example, Alzheimer,
sorrow and so on. Various papers have been distributed to contemplate the impacts
of radiation on individuals, as number of cases have just been enlisted showing the
impact of non-ionizing radiation from transmission lines and GSM poles on people.
In this paper the two wellsprings of non-ionizing radiations were broke down.
Electric electrical cables were found to have more prominent natural consequences
for human lives than telecom poles.
Keywords: Electric power lines, GSM Telecom Masts, Health hazards and Nonionizing radiation.