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Low side‐lobe horn antenna with nonuniform slot array
Author(s) -
Tae HyunSung,
Oh KyoungSub,
Hong SeungEun,
Lee MoonSik,
Yu JongWon
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.28467
Subject(s) - side lobe , horn antenna , french horn , antenna (radio) , optics , physics , aperture (computer memory) , microwave , slot antenna , antenna measurement , telecommunications , acoustics , electrical engineering , engineering
This letter presents a new low side‐lobe horn antenna with nonuniform slot array operated at K and Ka band. In the proposed antenna, the nonuniform slot array reduces the side‐lobe level by a modification of electric‐field distribution in horn aperture. The size of the proposed horn antenna is 78 × 75 × 400 mm 3 , and the experimental results exhibit a peak gain of 25–28.7 dBi and side‐lobe level of about −20 dB in target band. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1860–1862, 2014