A Compact Planar Multiband Antenna for Integrated Mobile Devices

Provided by: EMW Publishing
Topic: Mobility
Format: PDF
A compact multiband (GSM/DCS/PCS/UMTS/Bluetooth/WLANs/Wi-MAX) planar monopole antenna, which contains multiple branches, is proposed in this paper. Most wireless communication bands for consumer electronics are covered in this design. The antenna radiator comprises four resonant branches on the top surface of a PCB (Printed Circuit Board) board and one parasitic element on its back. The antenna size is 17.5x35.7mm and no via is needed in the fabrication process. Various techniques, such as branching, meandered lines, closed loop, capacitive coupling, parasitic elements and tapered ends, are used to enhance the antenna's bandwidth, matching and size reduction performance.

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