Multiband Printed Slot Meander Patch Antenna for MIMO Implementation in 4G Handheld Devices

This paper presents a low-profile slot meander patch antennas. the antenna is a multiple communication bands for handheld devices and implements multiple-input–multiple-output (mimo) technique. the proposed model covers lte band-11 1.5 ghz lower (1427.9 - 1452.9, 1475.9 - 1500.9), lte band-2 pcs 1900 (1930 -1990, 1850 -1910), lte band-7 2.6 ghz (2620-2690, 2500- 2570), and lte band-22 3.5 ghz (3510-3590, 3410-3490) with db matching criterion (vswr 3:1). an isolation less than -15 db has been obtained between two typical slot meander patch antennas. the isolation is achieved as a result of using cpw feeding mechanism and inserted cll network isolator. this dual-feed (2-elements) planar antenna is fabricated and measured. the result of this small size structured mimo antenna system shows a good radiation characteristics and small mutual coupling which is promising for mimo applications in compact portable devices.