COMPACT MULTI BAND MICROSTRIP ANTENNA USING INVERTED L SHAPED AND T SHAPED PARASITIC ELEMENTS

摘要

PURPOSE: A compact multi-band microstrip antenna using inverted L-shaped and T-shaped parasitic elements is provided to develop a compact single-layer multi-band microstrip antenna operable in various bands by resonating parasitic elements through perturbations. CONSTITUTION: A compact multi-band microstrip antenna for LTE, WLAN, and WiMAX bands comprises a ground plane (100) performs a grounding function; a dielectric substance (200) placed between the ground plane and a patch (300) and formed by a substrate of a thickness on which parasitic elements and the patch are placed; the patch printed on a parasitic element parallel to the ground plane and fed with a coaxial probe; and inverted-L- and T-shaped parasitic elements placed at both the radiating apertures of the patch.