Electronic Full-Space Scanning With 1-D Fabry–Pérot LWA Using Electromagnetic Band-Gap

Author

Guzmán-Quirós, Raúl ; Gómez-Tornero, José Luis ; Weily, Andrew R. ; Guo, Y. Jay

Author_Institution

Technol. of Inf. & Commun., Univ. Politec. de Cartagena, Cartagena, Spain

Volume

11

fYear

2012

fDate

7/4/1905 12:00:00 AM

Firstpage

1426

Lastpage

1429

Abstract

A novel mechanism to obtain full-space electronic scanning from a half-space scanning one-dimensional (1-D) Fabry-Pérot (FP) leaky-wave antenna (LWA) is proposed and experimentally demonstrated in this letter. By using a central feed that divides the structure into two independently controlled leaky lines, one each side, and making use of the electromagnetic band-gap (EBG) region of the FP resonator, the antenna can be electronically tuned to operate in three different regimes: backward scanning, forward scanning, and broadside radiation. Leaky-mode dispersion theory and experimental results of a fabricated prototype demonstrate a continuous electronic scanning from -25^° to +25^° at 5.5 GHz.

Keywords

leaky wave antennas; photonic band gap; 1D Fabry-Pérot LWA; EBG; FP resonator; backward scanning; broadside radiation; continuous electronic scanning; electromagnetic band-gap; electronic full-space scanning; forward scanning; frequency 5.5 GHz; leaky-mode dispersion theory; leaky-wave antenna; Leaky wave antennas; Metamaterials; Periodic structures; Varactors; Wireless communication; Electromagnetic band-gap (EBG); Fabry–Pérot (FP) antenna; electronic beam scanning; leaky-wave antenna (LWA);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2012.2228624

Filename

6359748