Design and Analysis of Compact Dual Band U-Slot Microstrip Patch Antenna with Defected Ground Structure for Wireless Application

S Leo Pauline,T R Ganesh Babu

doi:10.14419/ijet.v7i3.1.16787

Abstract

This paper explore about the micro strip patch antenna design with a defected ground structure (DGS) for dual band operation. The intend of this paper is to design an micro strip antenna, under the frequency at 2.4 GHz and 5.2 GHz that can be utilized for BLUETOOTH and WLAN applications. The feeding technique used here is coaxial feed technique. The above said double band property can be established by etching U-slot in the ground plane. Being periodic structure slot is selected and it is imposed on ground plane. The periodic structures naturally modify the method of propagation of the electromagnetic signal passing on to the antenna. Essentially its core is to vary the parasitic capacitance and inductance of the material through which the substrate is made. This may moreover leads to the reduction in size and progress the performance of the antenna. Micro strip patch antennae are favored due to the fact that these are small in size, inexpensive, consume low power and easy to fabricate and also be designed to meet wide band application requirements.

Highlights

In general wireless communication is based on radio waves, are the ways to transmit information over the distance not including any physical medium such as wires or connecting cables
For a superior antenna performance, a thick dielectric substrate having allowed dielectric constant is desirable as it provides better efficiency, larger bandwidth and better radiation
Designing a smaller sized Microstrip Patch Antenna (MPA), privileged dielectric constants must be used but it turn, it results to narrower bandwidth and less efficiency, there has to be reached a negotiation between antenna dimensions and performance

Summary

Introduction

In general wireless communication is based on radio waves, are the ways to transmit information over the distance not including any physical medium such as wires or connecting cables. For a superior antenna performance, a thick dielectric substrate having allowed dielectric constant is desirable as it provides better efficiency, larger bandwidth and better radiation. Such a bulky dielectric substrate leads to a enhanced antenna size. Designing a smaller sized MPA, privileged dielectric constants must be used but it turn, it results to narrower bandwidth and less efficiency, there has to be reached a negotiation between antenna dimensions and performance.

Feeding Techniques

Experimental Results

Conclusion