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Coplanar rotman lens and antipodal vivaldi antenna array for L‐ and S‐band applications
Author(s) -
Molaei Ali,
Dehmollaian Mojtaba,
Shahabadi Mahmoud
Publication year - 2015
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.29069
Subject(s) - vivaldi antenna , optics , microwave , side lobe , lens (geology) , antipodal point , antenna (radio) , radiation pattern , materials science , engineering , optoelectronics , physics , telecommunications , mathematics , geometry
A 60 × 70 cm 2 Rotman lens including seven beam ports and nine Vivaldi antenna elements is designed for 1.5–3.5 GHz frequency range. The radiation pattern is scanned in a ±24° range in seven steps, having side‐lobe‐levels better than 10 dB. The design is fabricated on a FR4 substrate. Measurements support simulations. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1305–1308, 2015