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A planar compact metamaterial‐inspired broadband antenna
Author(s) -
Anila P V,
Indhu K K,
Nijas C M,
Sujith R,
Mridula S,
Mohanan P
Publication year - 2014
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.28175
Subject(s) - standing wave ratio , monopole antenna , metamaterial , broadband , impedance matching , microstrip antenna , bandwidth (computing) , metamaterial antenna , ground plane , microwave , electrical engineering , patch antenna , coaxial antenna , acoustics , antenna (radio) , optics , optoelectronics , physics , engineering , electrical impedance , telecommunications
An electrically small, broadband‐modified, truncated ground metamaterial EZ antenna is presented. This, a modified EZ antenna system, achieves a larger bandwidth of the order of 650 MHz by adjusting the metamaterial‐inspired meandered ground element fed by a top loaded monopole. The design is devoid of the large ground planes and the external parasitic elements used in conventional designs for achieving proper impedance matching characteristics. The antenna requires a small foot print of λ g /5 × λ g /10, where λ g is the guided wavelength corresponding to the lowest frequency of operation, when printed on a substrate of dielectric constant 4.4 and thickness 1.6 mm. The antenna offers a 2:1 VSWR bandwidth from 750 MHz to 1.4 GHz, which covers CDMA, GSM, and ISM bands. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:610–613, 2014