volume | PIER Journals

2009-05-14

Realization of Composite Right/Left-Handed Transmission Line Using Coupled Lines

Aya Fekry Abdelaziz,

Dr. Aya Fekry Abdelaziz

Department of Electronics and Electrical Engineering

Cairo University

Egypt

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Tamer Mostafa Abuelfadl,

Dr. Tamer Mostafa Abuelfadl

Department of Electronics and Electrical Engineering

Cairo University

Egypt

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Osman Lotfy Elsayed

Dr. Osman Lotfy Elsayed

Department of Electronics and Electrical Engineering

Cairo University

Egypt

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Progress In Electromagnetics Research, Vol. 92, 299-315, 2009

doi:10.2528/PIER09040305 | Google Scholar

Abstract

This paper presents a method to construct composite right/left-handed transmission line using coupled lines. A general procedure to design a composite right/left-handed unit cell is presented. The procedure was used on a specific coupled line configuration, which is the coupled microstrip lines with slotted ground. It is shown that by proper design of the slotted ground, the coupling between the two microstrip lines can be increased dramatically keeping practical dimensions for the coupled line width and spacing. Moreover, with accurate slotted ground design, equal even and odd electrical lengths can be achieved. The performance of this composite right/left-handed line, which is characterized by backward waves with phase advance, is demonstrated by both simulated and measured results and they show good agreement. The realized composite right/left-handed transmission line has a broad bandwidth and small size.

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Aya Fekry Abdelaziz, Tamer Mostafa Abuelfadl, and Osman Lotfy Elsayed, "Realization of Composite Right/Left-Handed Transmission Line Using Coupled Lines," Progress In Electromagnetics Research, Vol. 92, 299-315, 2009.
doi:10.2528/PIER09040305

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