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Broadside gain and bandwidth enhancement of microstrip patch antenna using a MNZ‐metasurface
Author(s) -
Chung Kwok L.,
Chaimool Sarawuth
Publication year - 2012
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.26574
Subject(s) - broadside , microstrip antenna , patch antenna , bandwidth (computing) , optics , antenna measurement , microstrip , microwave , materials science , antenna (radio) , physics , electrical engineering , engineering , telecommunications
This article presents a metasurfaced patch antenna in which the metasurface acts as a superstrate/cover placed atop a 2.45‐GHz patch antenna, at a small distance. The metasurface is a Mu‐near‐zero (MNZ) type, which gives a near‐zero index of refraction. The MNZ metasurface consists of 4 × 4 double‐closed‐loop resonators printed on a thin FR4 dielectric slab. The proposed antenna is low‐cost and low‐profile, having overall dimensions of 0.86 λ × 0.86 λ × 0.07 λ. The simulation and experimental results confirm that the metasurfaced antenna not only has simultaneous enhancements on broadside gain and bandwidth, but also improves antenna efficiency. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:529–532, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26574