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Progress In Electromagnetics Research
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DUAL LINEAR/CIRCULAR POLARIZED PLANNAR ANTENNA WITH LOW PROFILE DOUBLE-LAYER POLARIZER OF 45º TILTED METALLIC STRIPS FOR WIMAX APPLICATIONS

By J. L. Masa-Campos and F. Gonzalez-Fernandez

Full Article PDF (641 KB)

Abstract:
A low profile double-layer polarizer structure is presented for planar patch antennas to obtain circular polarization in 3.5 GHz WiMAX band (3.4-3.6 GHz≈5.7% bandwidth). Each polarizer layer is composed of 45º tilted metallic strips on a printed circuit. A bandwidth widening is obtained due to a significant reduction of the distance between polarizer and patches. The associated effects from the interaction of the two structures have been studied. A 2x2 array prototype has been implemented and measured, with a 8% average bandwidth in reflection and dual linear/circular polarization.

Citation:
J. L. Masa-Campos and F. Gonzalez-Fernandez, "Dual Linear/Circular Polarized Plannar Antenna with Low Profile Double-Layer Polarizer of 45º Tilted Metallic Strips for WiMAX Applications," Progress In Electromagnetics Research, Vol. 98, 221-231, 2009.
doi:10.2528/PIER09092406
http://www.jpier.org/PIER/pier.php?paper=09092406

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