A compact MIMO antenna for smartphone applications
Abstract
This paper presents a design of compact Multiple Input Multiple Output (MIMO) of
Planar Inverted F-Antenna (PIFA) involving parameters which may affect the characteristics of PIFA. The proposed antenna consists of two ports with one patches operates at GSM frequencies which is 0.9 GHz and 1.8 GHz. The single antenna is
fabricated on an inexpensive FR4 a dielectric constant of ɛ = 4.3, with thickness of substrate that is 1.54 mm and the thickness of patch is 0.035 mm. The simulated result represents that the proposed antenna obtained the reflection coefficient as needed which is at least ≤ -6 dB for single antenna design and also for MIMO configuration of antenna. Simulation by using CST Microwave Studio program and measurement on the final prototype antenna were carried out and compared. A MIMO system characteristic of a two port MIMO antenna is performed. A two port antenna for mobile applications is designed, the antenna shows good in frequency drop, radiation pattern and reflection coefficient.
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