Sayed Ali SHAHSHAHANI, Mohammad Amin HONARVAR

A hybrid multiband printed loop antenna for WLAN/WiMAX bands for applications in MIMO systems

In this article a thin hybrid multiband printed loop antenna is presented for application in multiple-inputmultiple-output (MIMO) systems. The proposed antenna has several advantages; for example, the pseudofilter featureof the proposed antenna is one of this antenna’s advantages. Because of the antenna’s width (9.5 mm), it can be usedon the edges of the board. The first resonant frequency is generated by the original loop of the antenna. Incorporationof different embedded components, i.e. a subsidiary loop, extended ground-traces, parasitic patch, and the slits, resultsin the proposed antenna resonating as a multiband antenna. This antenna is adjusted in such a way that it resonant inWLAN (2.4, 5.2, and 5.8 GHz) and WiMAX (3.5 GHz) bands. Four antennas are used as a MIMO system that aresequentially and perpendicularly placed along the edges of the board. In conclusion, the antenna design is confirmedaccording to simulation results obtained from the constructed prototype and associated measuring results.

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