16-Element circular polarised antenna array based on sequential arrangement of non-identical disc patches

A circular polarised antenna array based on the recursive application of the sequential rotation architecture is presented. The first level sequential arrangement is applied to a set of four non-identical slightly detuned patches, resulting in a broadband improper array. At the second level, the seq...

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Bibliographic Details
Published in:Electronics letters 2018-02, Vol.54 (3), p.113-114
Main Authors: Maddio, S, Pelosi, G, Righini, M, Selleri, S
Format: Article
Language:English
Subjects:
16‐element circular polarised antenna array
Antennas and propagation
electromagnetic wave polarisation
first‐level sequential arrangement
frequency 5.35 GHz to 7.25 GHz
gain 13 dB
global bandwidth
microstrip antenna arrays
nonidentical disc patches
nonidentical slightly‐detuned patches
recursive application
sequential arrangement
sequential rotation architecture
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Summary:A circular polarised antenna array based on the recursive application of the sequential rotation architecture is presented. The first level sequential arrangement is applied to a set of four non-identical slightly detuned patches, resulting in a broadband improper array. At the second level, the sequential arrangement is applied to four identical first-level sub-arrays, regularising the structure. Experimental validations confirm a gain exceeding 10 dB from 5.35 to 7.25 GHz, with a maximum of 13 dB. Global bandwidth is 30% despite an area of only $2.84\lambda _0^2 $2.84λ02
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2017.4149