Pattern Reconfigurable Antenna

Elisbeth, Murugas (2015) Pattern Reconfigurable Antenna. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 pages) Pattern Reconfigurable Antenna 24 Pages.pdf - Submitted Version Download (344kB)

Abstract

The recent wireless communication systems tend to be high-capacious, multifunctional and cover more frequency bands. Therefore, the quantity of the antenna is becoming larger and larger. This will lead to large communication system equipment, increased costs, and electromagnetic compatibility problems. This thesis presents the design of a pattern reconfigurable antenna which can operable at 2.4GHz for wireless communication system using electrical switching technique with integration of RF PIN diodes. For this project, a rectangular microstrip patch antenna was first designed and fabricated as a reference. Then a microstrip patch antenna with a partial ground plane base equipped with two pin diode is designed to get pattern reconfigurability. Two PIN diode switches are mounted over the slots in the ground plane optimize to yield the maximum number of radiation pattern and to enhance the resonance frequency, return loss, gain and efficiencies. This antenna is an attractive candidate for WLAN applications. While standard antennas radiate the energy in a fixed direction, pattern reconfigurable antenna allows a single radiation structure to behave as several antennas with different radiation properties. Pattern reconfigurability enables wireless communication systems to avoid noisy environments, maneuver away from electronic jamming, and save energy by redirecting signals toward intended users only. Pattern configurable antennas are frequently used to increase channel capacity and broaden the coverage area of wireless system.

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