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Microstrip Antenna Pattern Reconfiguration Using On-Chip Parasitic Elements

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Document pages: 13 pages

Abstract: In this paper, a design of pattern reconfigurable microstrip patch antenna and its simulation using CSTMW simulator is presented. The designed antenna is also fabricated and tested. The design consists of microstrip patch printed on FR-4 substrate with a coaxial line feeding on the back of the antenna which is the active element. Two on-chip parasitic elements (OCPE) also are printed on FR-4 substrate, each of which connected through a via hole to the ground. The proposed design has the advantage of movable parasitic chip elements with the same motherboard to control the reconfigurable pattern direction as well as operating frequency. It is also have the advantages of parasitic elements rotation to fit reception transmission required steering angle. The results obtained show that the steering angle of the main beam in the H-plane depends upon the dimension of the parasitic element substrate as well as the type of the patch antenna. The presented antenna is suitable for different application, including Wifi and WiMax systems.

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