Analysis of Microstrip Antenna Array with Dumbbell Defected Ground Structure
Jobins George1, B. Lethakumari2
1Jobins George, Ph.D Scholar, MGUCE, Mahatma Gandhi University College of Engineering and Technology, Thodupuzha, Idukki (Kerala), India.
2Dr. B. Lethakumari, Research Head, MGUCE, Mahatma Gandhi University College of Engineering and Technology, Thodupuzha, Idukki (Kerala), India.
Manuscript received on 25 April 2019 | Revised Manuscript received on 03 May 2019 | Manuscript Published on 08 May 2019 | PP: 522-526 | Volume-7 Issue-5S3 February 2019 | Retrieval Number: E11920275S19/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The ground plane of microwave planar circuits is etched with slots or defects which are referred as Defected Ground Structure. By adopting DGS, the various parameters of microwave circuits such as narrow bandwidth, cross polarization, low gain, etc can be improved. This paper proposes design and stimulation of a 2×2 rectangular micro strip patch antenna array with dumbbell shaped slot defected ground structure. The operating frequency for the implemented antenna array is 10 GHz. The corporate-series feed network is implemented for feeding patch elements. The 2×2 antenna array is implemented on FR4 substrate with 1.588mm thickness and dielectric constant of 4.4.The stimulation and performance analyze of antenna is done using An soft High frequency structure simulator software. Finally, comparison of antenna array characteristics with and without DGS is presented.
Keywords: High Frequency System Stimulator (HFSS), Defeated Ground Structure (DGS), Optoelectronics Integrated Circuits (OEIC), Microwave Monolithic Integrated Circuits (MMIC), Photonics band Gap (PBG).
Scope of the Article: Microstrip Antenna