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A five elements sequential rotation array arranged in a single‐layer pentagonal substrate
Author(s) -
Maddio Stefano,
Pelosi Giuseppe,
Righini Monica,
Selleri Stefano
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.30474
Subject(s) - rotation (mathematics) , substrate (aquarium) , layer (electronics) , materials science , optoelectronics , geometry , nanotechnology , mathematics , geology , oceanography
A pentagonal circular polarized subarray composed of five elements is proposed for operation at 2.45 GHz. The array is based on the sequential rotation architecture (SRA), implemented with a sequential phase distribution network. Despite a more complex design in comparison to the canonical 4‐elements SRA, a pentagonal subarray is more suited to be packed in a Bucky‐ball or icosahedral arrangement, ideal for smart antennas with wide angle spatial coverage. A single‐layer via‐less prototype is fabricated on a common FR4 substrate. Measurements show a realized gain of 6.15 dBi with a polarization purity exceeding 20 dB at 2.45 GHz. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1077–1081, 2017