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Experimental investigation of EBG surface performance for suppression of undesired waves on phased array antennas

 
: Bertuch, T.; Maci, S.; Caminita, F.; Boust, F.; Martel, C.; Martinaud, J.-P.; Dousset, T.

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Politecnico di Torino; International Union of Radio Science -URSI-; IEEE Antennas and Propagation Society:
International Conference on Electromagnetics in Advanced Applications, ICEAA 2013. Vol.2 : Torino, Italy, 9 - 13 September 2013; Including EMS '13, the first edition of the Electromagnetic Metrology Symposium
Piscataway, NJ: IEEE, 2013
ISBN: 978-1-4673-5706-7
ISBN: 978-1-4673-5705-0
ISBN: 978-1-4673-5707-4
S.988-991
International Conference on Electromagnetics in Advanced Applications (ICEAA) <15, 2013, Torino>
Electromagnetic Metrology Symposium (EMS) <1, 2013, Torino>
Englisch
Konferenzbeitrag
Fraunhofer FHR ()

Abstract
The suppression of undesired surface waves on a reference array antenna resorting to a low-cost wide-band EBG surface is investigated experimentally through measurements of embedded element radiation patterns. An EBG frame around the array aperture is used to reduce back and side radiation while narrow EBG strips are placed in-between columns or rows of antenna elements to mitigate blind spots. Measurement results indicate the effectiveness of the proposed method even though the EBG surfaces are not monolithically integrated with the array aperture. At first glance, this seems to be a disadvantage but it makes the approach also suitable for retrofitting existing systems.

: http://publica.fraunhofer.de/dokumente/N-298619.html