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1-D Scanning Arrays on Dense Dielectrics Using PCS-EBG Technology

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4 Author(s)
Llombart, N. ; TNO Defence, Security & Safety, Den Haag ; Neto, A. ; Gerini, G. ; de Maagt, P.

We show how the design of integrated arrays can significantly benefit from planar circularly symmetric (PCS) electromagnetic band gap (EBG) structures. Using this technology, a phased array that scans up to 40deg in one dimension and that is characterized by relatively large bandwidth (BWap15%) is designed, manufactured and tested. The specific advantages coming from the use of PCS-EBGs are two fold. On one hand the losses associated to surface waves are significantly reduced. On the other hand each element of the array has a larger effective area that leads to a higher gain for the complete array when compared with a standard technology. Additional benefits are the low cross-polarization levels, the good front to back ratio considering that the antenna does not include a backing reflector, and the low profile

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Antennas and Propagation, IEEE Transactions on  (Volume:55 ,  Issue: 1 )