Abstract
This paper presents a novel compact coplanar waveguide (CPW) monopole fractal-shaped antenna using fractal patch composed of hexagons with defected ground plane. Inclusion of a pair of S-shaped slots on the ground plane is used to extend the antenna impedance bandwidth and to provide multiband operation. The antenna has a compact size of 35×35×1.27 mm3 which is compact. The antenna is designed, fabricated and measured. Good performances in terms of return loss, gain and radiation pattern are obtained in the operating bands, which makes the proposed antenna a good candidate for multiband wireless systems. The obtained results show that the antenna operates at Bluetooth,Worldwide Interoperability for Microwave Access (WiMAX), and Wireless Local Area Network (WLAN).
Highlights
Nowadays, advanced antenna technology employs various types and models of antennas according to the area of the desired application
Different planar monopole antennas have been proposed such as compact dual-band annular-ring slot antenna (ARSA) [4], an inverted-U-shaped antenna with additional I- and L-shaped strips [5], hexagonal slot antenna with slits [6], convex pentagon shaped microstrip antenna [7]
The proposed antenna occupies the smallest area and has simpler geometry to realize the required operating bands compared to other designs in [5, 8]
Summary
Nowadays, advanced antenna technology employs various types and models of antennas according to the area of the desired application. With the rapid development of wireless communication systems, it is attractive to design small size, low profile and multi-band antennas to cover simultaneously several standards, such as LTE, Bluetooth, WiMAX and WLAN bands into a single wireless system [1, 2]. For this reason, multiband wireless systems are required to avoid using several antennas for various operating frequencies [3]. We present a novel fractal shaped antenna with defected ground plane and fed by a coplanar waveguide (CPW) for the Bluetooth/WiMAX/WLAN systems.
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