Gain Enhancement of Microstrip Patch Antenna Using H-Shaped Defected Ground Structure
This paper presents the enhancement of the gain of an inset feed microstrip slot antenna using H-shaped Defected Ground Structure (DGS). Reduced higher order harmonics increases the gain of the antenna using DGS technology. A critical comparative analysis
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Abstract This paper presents the enhancement of the gain of an inset feed microstrip slot antenna using H-shaped Defected Ground Structure (DGS). Reduced higher order harmonics increases the gain of the antenna using DGS technology. A critical comparative analysis is made between the antenna with and without DGS. Simulation results reveal that there is a remarkable increase in gain. The proposed design is applicable for commercial frequency band of 900 MHz–2.4 GHz. Keywords Inset feed
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Microstrip patch
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H-shaped Defected Ground Structure
A. Rajawat (✉) ⋅ S.H. Gupta ⋅ C. Jain ⋅ P. Tomar ⋅ K. Kapur Amity University, Noida, Uttar Pradesh, India e-mail: [email protected] S.H. Gupta e-mail: [email protected] C. Jain e-mail: [email protected] P. Tomar e-mail: [email protected] K. Kapur e-mail: [email protected] P.K. Singhal MITS, Gwalior, India e-mail: [email protected] © Springer Nature Singapore Pte Ltd. 2018 P.K. Sa et al. (eds.), Progress in Intelligent Computing Techniques: Theory, Practice, and Applications, Advances in Intelligent Systems and Computing 519, DOI 10.1007/978-981-10-3376-6_56
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1 Introduction 1.1
Related Work
With the increasing technology, antennas have become an important part in that they allow users to transmit and receive data to communicate with the infrastructure. Microstrip patch antennas are widely used in today’s world in microwave and wireless communication system because of light weight, low-fabrication cost, low profile, easy fabrication, and ability to conform to any shape. In this modernizing era, people rely on the wireless Internet on a daily basis and thus here, a suitable design for an antenna is chosen so as to work in the commercial range of 900 MHz– 2.4 GHz frequencies. This antenna is further modified to enhance gain by introducing the Defected Ground Structure. Different techniques of enhancement of gain are reported such as array configuration [1], using EBG [2], use of parasitic elements technology [3], etc. In this paper, DGS is introduced for gain enhancement of a microstrip slot antenna. Defected Ground Structure (DGS) [4–6] refers to a configuration that can be an etched periodic or cascaded nonperiodic configuration. It creates a defect in the ground of transmission line. This transmission line maybe of any kind which produces disturbance in the distribution of shield current in the ground plane. Some characteristics changes of the transmission line can be seen because of the defect such as capacitance and inductance. So, it can be said that these characteristics such as effective capacitance and inductance can be increased due to the defect. DGS has created a degree of freedom in microwave designing and has opened the door to multiple applications. Also, it has become an interesting area of research because of their extensive applicability. Introducing DGS in our antenna design has brought significant change in the parameters of the design and the results have been analyzed. In our research, DGS helps in increasing the gain pa
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