Rectangular Dual Band Microstrip Patch Antenna with Defected Ground Plane Using CST STUDIO

Abstract

The rectangular dual-band microstrip patch antenna with defected ground plane for wireless communications that operates at 2.4-3.5 GHz. The antenna incorporates a rectangular patch with slot. The dielectric substrate used for antenna is RT Duroid 5880. According to position of etched slot are determined using parametric such as s-parameters and radiation pattern are simulated. The analyses are performed using CST STUDIO SUITE 2019.

Introduction

I. INTRODUCTION

There are some emerging challenges, along with the rapid development of application in wireless communication. To meet the requirement of a suitable antenna has become a big challenge in wireless communication. The microstrip patch antenna is very suitable for wireless applications due to its simple design because of its simple design, various shapes of geometries, ease of mounting, and flexibility with microwave and millimeter wave integrated circuit (MMICs) [1]. Microstrip patch antenna are an active research topic to seek solutions to narrow bandwidth, low efficiency, and poor performance [2]. A typical microstrip patch antennas oscillates in a single band. However, modern wireless communications require antenna hat can operate in multiple frequency bands. 1575.42/1227.60/1176.45MHz for Global Positioning System (GSM), 900/1800MHz for Global System for Mobile Communications(GSM), 2.4/5.2/5.8GHz for Wireless Local Area Network(WLAN), interoperability 2.5/3.5/5.5 GHz Microwave Access (Wi MAX) FOR 700/2300/2600 MHz for Long Term Evolution (LTE) [3-4].

Multiband wireless communication is considering using multiband antenna instead of broadband antenna. This is because while a broadband antenna meets the bandwidth requirements for the desired frequency band, it also. This approach increases the cost and complexity of the receiver unwanted signals in unwanted bands. Since the system works only in certain band, the receiver must use high-order filters to extract and remove the desired frequency band wasted frequency band. This approach increases receiver cost and complexity. Therefore, consider a multiband antenna and design the antenna for wide bandwidth and good gain on the desired band to meet your system requirements. Specifically, we modify a rectangular microstrip patch antenna with a flawed ground plane technique for 5.5/3.5 GHz dual-band operation. Monopole antennas and antennas with a monopole like radiation pattern. The reasons for choosing the rectangular microstrip patch antenna are its popularity, and ease of construction and calibration [2].

The performance of patch antennas also depends on the form of feed technology and various techniques such as lots in the patch, different geometries, and DGS [5]. Techniques such as etching slots from the radiating element, tapered structures fed by coplanar waveguides, integration of metallic materials with antennas, capacitive coupling patches, and multi-layer structures have been proposed [6]. However, these techniques deal with radiation spot modification and hardly achieve the bandwidth requirements of multi-band systems. Another technique, known as the flawed ground plane technique, is to change the ground plane of the radiating patch to meet multiband requirements. Ground plane defect techniques generally produce greater bandwidth compared to radiating patch repair techniques. This is because in the latter, slot etching creates imperfections in the ground plane of the radiating patch, leading to perturbations in the shield current distribution. As a result, the effective inductance and capacitance of the transmission line and the input impedance increase [7].

II. METHOD OF ANALYSIS

To design a microstrip patch antenna, choose the resonant frequency and permittivity for which the antenna is designed. The substrate used for the microstrip patch antenna is RT, 5880 with dimensions 96 × 96 mm2 with height h= 1.6 mm2, dielectric constant εr =2.2, and loss tangent tan δ=0.0009. The parameters to be calculated as,

V. ACKNOWLEDGMENT

We would also like to show our gratitude to, Prof. Ms. Shivleela Mudda (Asst. professor, Department of Electronics and communication, M. S. Bidve Engineering College Latur, DBATU, Lonare, Maharashtra, India) for sharing their pearls of wisdom with us during the course of this research. We are also immensely grateful to him for his comments on an earlier version of the manuscript, although any errors are our own and should not tarnish the reputations of these esteemed persons.

Conclusion

About results, we can be concluding that, better result was obtained with the proposed defected ground plane, and we also observed an improvement in bandwidth compared to this standard microstrip antenna. A two-band resonance is obtained by etching a slot out of the ground plane. The antenna exhibits dual-band nature in the frequency band 2.7 to 3.3 GHz.

References

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Copyright

Copyright © 2023 Anuja Jade, Prof. Shivleela Mudda. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.