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Cylindrical conformal array antenna with tilted H‐plane Fan‐shaped beam for millimeter‐wave application
Author(s) -
Fan Kui Kui,
Hao ZhangCheng
Publication year - 2016
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.29879
Subject(s) - optics , antenna (radio) , conformal map , extremely high frequency , beam (structure) , microwave , millimeter , conformal antenna , slotted waveguide , physics , radius , slot antenna , dipole antenna , electrical engineering , engineering , geometry , mathematics , computer security , quantum mechanics , computer science
A millimeter‐wave cylindrical conformal array with a 120° flat‐top broad beam and a stable 30° downward tilted‐angle is demonstrated, fabricated and measured in this paper. The radiating part consists of eight slotted waveguides, with 32‐element longitudinal slots per waveguide. The feeding network consists of a 1‐to‐8 unequal power divider and a compact phase compensating network, which was designed to provide stable phase differences between the adjacent slotted waveguides for the radiating part. The conformal antenna is wrapped around a cylindrical with a radius of 36.5 mm in the circumferential direction. Measured results show that the beam is covered in H‐plane over a field of view of 120° with a flat‐top, and achieved a stable 30° downward angle in E‐plane. The measured antenna gain was ∼12 dBi with a gain ripple within 1.4 dB. The measured reflection is below −10 dB over the frequency range of 40.25–44 GHz. The proposed new conformal array antenna can be used in millimeter wave wireless local area network. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1666–1671, 2016