Design and Analysis of a Broadband Microwave Amplifier

Obinna Okoyeigbo; Augustus E Ibhaze; Ayobami Olajube; Olamilekan Shobayo; Tobiloba Somefun; Onyinyechi Steve-Essi

doi:10.52549/ijeei.v9i1.2708

Design and Analysis of a Broadband Microwave Amplifier

Obinna Okoyeigbo
, Augustus E Ibhaze
, Ayobami Olajube
, Olamilekan Shobayo
, Tobiloba Somefun
, Onyinyechi Steve-Essi

Graduate School

Department of Electrical and Information Engineering (EIE), College of Engineering, Covenant University, Ota, Nigeria
Department of Electrical and Electronic Engineering, University of Lagos, Akoka, Lagos State, Nigeria

Research output: Contribution to journal › Article (journal) › peer-review

4 Citations (Scopus)

2 Downloads (Pure)

Abstract

This paper presents the procedures involved in the design and analysis of a microstrip broadband microwave amplifier. For system design, simulation, optimization and analysis, a Computer Aided Design (CAD) tool known as Agilent Advanced Design System (ADS) was employed. The amplifier device-FLC317MG-4 FET, was tested for stability, and was observed to be unconditionally stable between 2 to 6 GHz frequency band. Two possible ideal matching circuits were investigated to identify the best matching circuit with the maximum transducer power gain. It was observed that the quarter-wave transformer with parallel open circuit stub, gave a high gain at a wider range of frequency (larger bandwidth/ broadband), than the other matching circuit. Hence, it was employed for the broadband amplifier design using microstrips, and achieved a maximum flat gain of about 9.8 dB to 10.118 dB, at a bandwidth of 3.5 to 4.5 GHz.

Original language	English
Pages (from-to)	210-219
Number of pages	10
Journal	Indonesian Journal of Electrical Engineering and Informatics
Volume	9
Issue number	1
DOIs	https://doi.org/10.52549/ijeei.v9i1.2708
Publication status	Published - 23 Mar 2021

Keywords

Advanced Design System (ADS)
Agilent
Broadband
Microstrip
Microwave Amplifier

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Design and Analysis of a Broadband Microwave Amplifier Final published version, 537 KBLicence: CC BY

Cite this

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title = "Design and Analysis of a Broadband Microwave Amplifier",

abstract = "This paper presents the procedures involved in the design and analysis of a microstrip broadband microwave amplifier. For system design, simulation, optimization and analysis, a Computer Aided Design (CAD) tool known as Agilent Advanced Design System (ADS) was employed. The amplifier device-FLC317MG-4 FET, was tested for stability, and was observed to be unconditionally stable between 2 to 6 GHz frequency band. Two possible ideal matching circuits were investigated to identify the best matching circuit with the maximum transducer power gain. It was observed that the quarter-wave transformer with parallel open circuit stub, gave a high gain at a wider range of frequency (larger bandwidth/ broadband), than the other matching circuit. Hence, it was employed for the broadband amplifier design using microstrips, and achieved a maximum flat gain of about 9.8 dB to 10.118 dB, at a bandwidth of 3.5 to 4.5 GHz.",

keywords = "Advanced Design System (ADS), Agilent, Broadband, Microstrip, Microwave Amplifier",

author = "Obinna Okoyeigbo and Ibhaze, \{Augustus E\} and Ayobami Olajube and Olamilekan Shobayo and Tobiloba Somefun and Onyinyechi Steve-Essi",

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T1 - Design and Analysis of a Broadband Microwave Amplifier

AU - Okoyeigbo, Obinna

AU - Ibhaze, Augustus E

AU - Olajube, Ayobami

AU - Shobayo, Olamilekan

AU - Somefun, Tobiloba

AU - Steve-Essi, Onyinyechi

PY - 2021/3/23

Y1 - 2021/3/23

N2 - This paper presents the procedures involved in the design and analysis of a microstrip broadband microwave amplifier. For system design, simulation, optimization and analysis, a Computer Aided Design (CAD) tool known as Agilent Advanced Design System (ADS) was employed. The amplifier device-FLC317MG-4 FET, was tested for stability, and was observed to be unconditionally stable between 2 to 6 GHz frequency band. Two possible ideal matching circuits were investigated to identify the best matching circuit with the maximum transducer power gain. It was observed that the quarter-wave transformer with parallel open circuit stub, gave a high gain at a wider range of frequency (larger bandwidth/ broadband), than the other matching circuit. Hence, it was employed for the broadband amplifier design using microstrips, and achieved a maximum flat gain of about 9.8 dB to 10.118 dB, at a bandwidth of 3.5 to 4.5 GHz.

AB - This paper presents the procedures involved in the design and analysis of a microstrip broadband microwave amplifier. For system design, simulation, optimization and analysis, a Computer Aided Design (CAD) tool known as Agilent Advanced Design System (ADS) was employed. The amplifier device-FLC317MG-4 FET, was tested for stability, and was observed to be unconditionally stable between 2 to 6 GHz frequency band. Two possible ideal matching circuits were investigated to identify the best matching circuit with the maximum transducer power gain. It was observed that the quarter-wave transformer with parallel open circuit stub, gave a high gain at a wider range of frequency (larger bandwidth/ broadband), than the other matching circuit. Hence, it was employed for the broadband amplifier design using microstrips, and achieved a maximum flat gain of about 9.8 dB to 10.118 dB, at a bandwidth of 3.5 to 4.5 GHz.

KW - Advanced Design System (ADS)

KW - Agilent

KW - Broadband

KW - Microstrip

KW - Microwave Amplifier

U2 - 10.52549/ijeei.v9i1.2708

DO - 10.52549/ijeei.v9i1.2708

M3 - Article (journal)

SN - 2089-3272

VL - 9

SP - 210

EP - 219

JO - Indonesian Journal of Electrical Engineering and Informatics

JF - Indonesian Journal of Electrical Engineering and Informatics

IS - 1

ER -

Design and Analysis of a Broadband Microwave Amplifier

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