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Modes‐controlled slot antennas with frequency selective surface
Author(s) -
Lin ShunYun
Publication year - 2006
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.21256
Subject(s) - harmonics , microwave , tunable metamaterials , ground plane , bandwidth (computing) , electronic engineering , electrical engineering , physics , dipole , square (algebra) , engineering , optics , acoustics , antenna (radio) , telecommunications , voltage , mathematics , metamaterial , geometry , quantum mechanics
This paper presents two designs of square‐ring slot antennas to suppress the 2 nd and 3 rd harmonics by involving a frequency‐selective surface (FSS) with square‐loop‐type and meandered‐dipole‐type elements. The transparency of the surface in the higher‐order mode makes the ground plane invalid, so that the harmonics cannot resonate and emit. The experimental results show that the FSS structure not only demonstrates band‐reject characteristics, but also well retains the antenna performances for fundamental‐mode operation. Moreover, with the square‐loop‐type lattice, the impedance bandwidth was increased by about four times as much as that of the reference antenna. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 47–49, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21256