Design considerations for dual polarized aperture-coupled microstrip patch antennas

Abstract

ABSTRACT:A correction factor dependent upon frequency, type of phantom, and incident polarization, which should be applied to the measured specific absorption rate is proposed for homogeneous phantoms. It is shown for an application of occupational exposure in the neighborhood of a base station antenna that this correction factor not underestimates realistic exposure of workers.

Design and measured performance of an 8×8 dual polarised aperture-coupled microstrip patch phased array

“…This increase in the cross-polarisation level can be explained with the coupling between parallel microstrip lines of neighbouring subarrays carrying different polarisations. If necessary, this crosspolarisation level can be further reduced by the use of a sequential feeding technique for the subarrays as descrbed in [1].…”

“…1 shows the layout and a 3D view of a dual polarised 8x8 element subarray in C-band (5.3 GHz), composed of several dielectric and metallic layers. For radar applications several subarrays are combined to a dual polarised phased array, which can be scanned in elevation.…”

“…Thefeedlines together with the ground plane and the coupling apertures are built on a 0.508 mm thick RT/Duroid 5880 substrate. For the excitation of the dual linear polarisation an offset slot configuration [1] is used. In order to suppress the backradiation of the coupling slots the used corporte feed network is realised in shielded microstr technkque.…”

Design of a dual-polarized X-band antenna sub-array for SAR applications

“…Further, an offsetslot feed to obtain higher bandwidth [3] and the feed lines for both polarizations are located on the same substrate layer. In the current design, broad bandwidth is achieved without using foam layer, typically used in such antenna design [4].…”

Experimental characterization of a broadband dual‐polarized microstrip antenna for X‐band SAR applications

“…Literature [2] developed a probe-fed stacked microstrip patch antenna for the dual-polarized C-band SAR application. Aperture-coupled microstrip patch arrays are used in several SAR antenna designs [3][4][5][6].…”