Enhanced-Gain Microstrip Antenna Using Engineered Magnetic Superstrates

Author

Attia, Hussein ; Yousefi, Leila ; Bait-Suwailam, Mohammed M. ; Boybay, Muhammed S. ; Ramahi, Omar M.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Waterloo, Waterloo, ON, Canada

Volume

8

fYear

2009

fDate

7/1/1905 12:00:00 AM

Firstpage

1198

Lastpage

1201

Abstract

This letter presents a novel engineered magnetic superstrate designed to enhance the gain and efficiency of a microstrip patch antenna without any substantial increase in the profile of the whole structure (the antenna with the superstrate). The modified split ring resonator (MSRR) inclusions are used in the design of the engineered magnetic superstrate. Numerical full-wave simulations as well as analytical models are used to analyze the entire radiating system. Considering as an example a microstrip antenna operating within the UMTS band, the broadside gain of the antenna was improved by 3.4 dB and the efficiency was improved by 17% when using the engineered superstrate. The total height of the proposed structure, antenna with superstrate, is lambda₀/7, where lambda₀ is the free-space wavelength at the resonance frequency of the antenna.

Keywords

magnetic materials; microstrip antennas; numerical analysis; UMTS band; broadside gain; engineered magnetic superstrates; microstrip patch antenna; modified split ring resonator; numerical full-wave simulation; Engineered magnetic materials; engineered superstrate; metamaterials; microstrip antenna; modified split ring resonator (MSRR);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2009.2035149

Filename

5299020