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High-efficiency AMC loaded dipole above FR4 substrate

Published online by Cambridge University Press:  01 February 2019

Mohamed A.G. Elsheikh ,
Amr M.E. Safwat Open the ORCID record for Amr M.E. Safwat [Opens in a new window]  and
Hadia Elhennawy
Mohamed A.G. Elsheikh
Affiliation:
Electronics and Electrical Communications Engineering Department, Faculty of Engineering, Ain Shams University, 1 El-Sarayat Street, Abbassia, Cairo 11517, Egypt
Amr M.E. Safwat*
Affiliation:
Electronics and Electrical Communications Engineering Department, Faculty of Engineering, Ain Shams University, 1 El-Sarayat Street, Abbassia, Cairo 11517, Egypt
Hadia Elhennawy
Affiliation:
Electronics and Electrical Communications Engineering Department, Faculty of Engineering, Ain Shams University, 1 El-Sarayat Street, Abbassia, Cairo 11517, Egypt
*
Author for correspondence: Amr M.E. Safwat, E-mail: amr_safwat@eng.asu.edu.eg
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Abstract

This paper presents a novel artificial magnetic conductor (AMC) loaded dipole above FR4 substrate. The proposed AMC consists of two metal layers that shield the wave from the lossy substrate leading to a significant increase in the dipole efficiency over a wide bandwidth. The dipole is fed through vias that are connected to a wideband balun placed on the opposite side of the ground plane. The proposed assembly is fabricated and characterized. Measurements, which are in a very good agreement with the electromagnetic simulations, show that the operating fractional bandwidth achieves the value of 16.2%, 1.927–2.267 GHz, with peak radiation efficiency of 72.5%.

Keywords

Artificial magnetic conductorbalundipole antennasFR4
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 11 , Issue 4 , May 2019 , pp. 401 - 407
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2019 

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