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Study of Grating Efficiency of Planar Arrays

Abbas Vosoogh (Institutionen för signaler och system, Antennsystem) ; Per-Simon Kildal (Institutionen för signaler och system, Antennsystem)
9th European Conference on Antennas and Propagation, EuCAP 2015, Lisbon, Portugal, 13-17 May 2015 (2015)
[Konferensbidrag, refereegranskat]

This paper studies the aperture efficiency reduction due to grating lobes of a uniformly excited planar array. The grating lobes will not cause major interference problems in the millimeter wave region, because of the attenuation in the atmosphere, but they cause a reduction of the directivity and thereby aperture efficiency of the antenna. Therefore, we present a simple formula for calculating the aperture efficiency in the presence of grating lobes, from knowledge of the element pattern. The accuracy of the formula is verified by comparing with simulated results for a full array with slot elements.

Nyckelord: array antenna, grating lobe, aperture efficiency



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Denna post skapades 2015-12-09. Senast ändrad 2016-09-12.
CPL Pubid: 227744

 

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