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A high directive K och fractal V ivaldi antenna design for medical near‐field microwave imaging applications
Author(s) -
de Oliveira Alexandre M.,
Justo João F.,
Perotoni Marcelo B.,
Kofuji Sérgio T.,
Neto Alfredo G.,
Bueno Regis C.,
Baudrand Henri
Publication year - 2017
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.30293
Subject(s) - vivaldi antenna , side lobe , microwave , fractal antenna , microwave imaging , optics , bandwidth (computing) , fractal , antipodal point , engineering , physics , electronic engineering , electrical engineering , antenna (radio) , antenna measurement , dipole antenna , telecommunications , coaxial antenna , mathematics , geometry , mathematical analysis
ABSTRACT We present a new fractal slot edge antipodal Vivaldi antenna (AVA). When compared to a conventional AVA, it simultaneously extends the low‐end bandwidth limitation, mitigates the side lobe level, and increases the main lobe gain. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:337–346, 2017