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DUAL LINEAR/CIRCULAR POLARIZED PLANNAR ANTENNA WITH LOW PROFILE DOUBLE-LAYER POLARIZER OF 45º TILTED METALLIC STRIPS FOR WIMAX APPLICATIONS
2009
Electromagnetic Waves
Preserved Fulltext
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 45 • 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 2 × 2 array prototype has been implemented
doi:10.2528/pier09092406
fatcat:ek2qy56rpbdcjkf4aqwqz3q3eq