Abstract
In this paper a coplanar waveguide-fed super-wideband antenna is presented for wireless sensor networks. The studied low-profile design is comprised of a modified bow-tie-shaped vertical patch and two asymmetrical ground planes and has been prototyped on a single-sided FR4 microwave substrate. The anticipated antenna has an overall size of $0.25\lambda \times 0.20\lambda $ at 3.035 GHz, the lowest frequency of the operating band. The vertical radiator coupled well with the two coplanar ground planes which enabled the studied antenna to achieve an operating band of 3.035–17.39 GHz (140.56%). The presented antenna demonstrates almost omnidirectional radiation patterns over the entire operating with an average gain of 4.56 dBi and average efficiency of 76.62%. The antenna also features with high fidelity factor, flat group delay, small phase distortion, and good response of transfer function. All these characteristics of the studied antenna make it a robust contender for wireless sensor node applications.
Highlights
Wireless sensor network (WSN) is one of the most promising and rapidly evolving wireless technologies that comprised of a group of spatially spread nodes
The proposed antenna features with advantages of low fabrication cost, small, easy prototyping, and easy integration with RF circuitry is suitable for wireless sensor network applications
FREQUENCY-DOMAIN CHARACTERISTICS The design of the antenna presented in the paper has been prototyped for the substantiation of the results obtained from IE3D and CST MWS software with optimal parameters and is shown in the inset of Fig. 6
Summary
Wireless sensor network (WSN) is one of the most promising and rapidly evolving wireless technologies that comprised of a group of spatially spread nodes. Using an extended U-shaped patch and two coplanar ground planes this antenna attained an operating band of 4.5-13.5 GHz. A CPW-fed UWB monopole antenna with a triangular-shaped radiator was presented in [19]. A CPW fed patch antenna that comprised of the semi-circular patch with slots and two rectangular coplanar ground planes was presented in [22] It possesses a dimension of 40 × 53.3 mm and not suitable for sensor applications. With a total footprint of 490 mm, the studied antenna is much smaller than many reported antennas and achieved good gain, efficiency, and demonstrations almost omnidirectional radiation patterns over the entire working band of 3.035– 17.35 GHz. The proposed antenna features with advantages of low fabrication cost, small, easy prototyping, and easy integration with RF circuitry is suitable for wireless sensor network applications
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
