A High-Gain Wideband Circular Fractal Slotted Ring Antenna Integrated with PRS for M2M Communication
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Keywords:
Fractal Antenna, Partially Reflective Surface (PRS), High-Gain, Wideband, Circular Slotted-Ring, CST Studio Suite, M2M Communication, WLAN, Wi-Fi, WiMAXAbstract
This paper presents the design and analysis of a planar circular fractal slotted-ring antenna
integrated with a Partially Reflective Surface (PRS), aimed at achieving high gain and wideband
performance for Machine-to-Machine (M2M), WLAN, Wi-Fi, and WiMAX applications. The proposed
antenna features a compact geometry utilizing fractal slotting to enhance current distribution and
bandwidth without increasing the physical size. To further improve gain and impedance matching, a 5×5
array of circular slotted PRS unit cells is strategically positioned above the radiating structure. The entire
antenna system is designed and simulated using CST Studio Suite 2024, a powerful electromagnetic
simulation tool. Simulated results demonstrate a significant enhancement in both S-parameters and
realized gain, with deep S₁₁ notches at 3.5 GHz and 5.5 GHz, and a peak gain reaching 8 dB, compared
to 4.5 dB without PRS. Radiation pattern analysis confirms stable and directional behavior across the
band. The proposed antenna is highly suitable for modern wireless communication systems requiring
compactness, efficiency, and robust performance.
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