Abstract
In this paper, a new compact wideband monopole antenna is presented for wireless communication applications. This antenna comprises of a new radiating patch, a new arc-shaped strip, microstrip feed line, and a notched ground plane. The proposed radiating patch is combined with a rectangular and semi-circular patch and is integrated with a partial ground plane to provide a wide impedance bandwidth. The new arc-shaped strip between the radiating patch and microstrip feed line creates an extra surface on the patch, which helps further widen the bandwidth. Inserting one step notch on the ground plane further enhances the bandwidth. The antenna has a compact size of 16×20×1.6mm3. The measured result indicated that the antenna achieves a 127% bandwidth at VSWR≤2, ranging from 4.9GHz to 22.1GHz. Stable radiation patterns with acceptable gain are achieved. Also, a measured bandwidth of 107.7% at VSWR≤1.5 (5.1-17GHz) is obtained, which is suitable for UWB outdoor propagation. This antenna is compatible with a good number of wireless standards, including UWB band, Wimax 5.4 GHz band, MVDDS (12.2–12.7GHz), and close range radar and satellite communication in the X-band (8-12GHz), and Ku band (12-18GHz).
Highlights
The recent and anticipated growth of wireless systems has fueled research efforts towards increasing the capacity of wireless systems and its network topology
A new compact wideband monopole antenna is presented for wireless communication applications
The new arc-shaped strip between the radiating patch and microstrip feed line creates an extra surface on the patch, which helps further widen the bandwidth
Summary
The recent and anticipated growth of wireless systems has fueled research efforts towards increasing the capacity of wireless systems and its network topology. In [15], a linearly tapered slot antenna was compacted by etching one side of the tapered shaped patch and introducing a corrugated pattern of cuts on the right side This antenna requires an overall size of 36×35×0.8mm. In [19], a printed monopole antenna with four slots at different corners of a modified radiating patch is developed for UWB application. A hexagonal radiating patch with a rectangular slot etched inside the patch and a defected ground plane is designed in [22] for UWB applications This antenna requires an antenna size of 28×29×1.6mm. Utilizing the proposed technique of combining new radiating patch with a new arc-shaped strip, microstrip feed line, and notched ground plane, the antenna achieves a 127% wide impedance bandwidth, ranging from 4.9 to 22.1GHz (at VSWR 2). The proposed antenna achieving 5.1–17 GHz bandwidth (107.7% bandwidth) below the threshold of VSWR 1.5 is suitable for the operations in Direct Sequence at high band (5.8–10.6 GHz) and Multiband OFDM at higher eleven subcarrier bands (5.9– 10.6 GHz) for ultrawideband outdoor propagation
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