Electronic full-space scanning with 1-D fabry-pérot LWA using electromagnetic band-gap

Publication Type:
Journal Article
IEEE Antennas and Wireless Propagation Letters, 2012, 11 pp. 1426 - 1429
Issue Date:
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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. © 2011 IEEE.
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