Dumbbell Shaped Defected Ground Structure High Gain Antenna for Dual Band Application

Authors

  • Cancan Hu School of Electronic and Optical Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China
  • N.P.Yadav1 School of Electronic and Optical Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China
  • Xuefeng Liu School of Electronic and Optical Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China

Keywords:

High gain, dumbbell shape defected ground, dual band, bandwidth, return loss, compact antenna

Abstract

Based on the traditional antennas with DGS, we have compared three similar circular DGS designs to find a better one in this
paper. Meanwhile, four T-shaped slots impedance transformer is used on the patch as a dual-band recouple to achieve dual-band technology. With the simulation, it is found that the antenna with three circular defects on the ground plane has better performances than the other two antennas. It has two resonant frequencies at 7.5GHz and 8.9GHz. The relative bandwidth is 3.33% and 3.94%, and the corresponding gain value is 9.45 dBi and 13.37dBi at two different resonance frequencies. Further, we obtained a higher gain, lower return loss and dual-band characteristics which can be used in the satellite communications.

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Author Biographies

Cancan Hu, School of Electronic and Optical Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China

Cancan Hu received her B.Tech. degree in 2016 in school of optoelectronics Nanjing University of Science and Technology China. Currently, she is doing M.Tech. from Nanjing University, China.

N.P.Yadav1, School of Electronic and Optical Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, 210094, China

N. P. Yadav was born in Varanasi (U.P), India in 1984. He received his Ph.D. degree from Central University of Allahabad (UP) India in 2011. From January 2012 to November 2013 worked as Assistant Professor in the Department of Physics, JSS Academy of Technical Education Noida, India. From December 2013 to December 2015 worked as Postdoctoral in the field of Multiband Microstrip Patch Antenna under the
guidance of Prof. W. Wu and Prof. D. G. Fang, Nanjing University of Science and Technology, China. From December 2015 to December 2017 worked as Postdoctoral in the field of Super-resolution imaging by using (PIMI) under the guidance of Prof. Xuefeng Liu, Nanjing University of Science and Technology,
China. His professional interests include the area of microwave and millimeter wave propagation, radar, scattering, ferrite devices, electronic scanning antennas, microstrip antennas, electromagnetic interaction (both energetic and informational) with biographical media, optical imaging high resolution image by PIMI (Parameter of Indirect Microscopic Imaging), Hyperlens, Superlens based on Metamaterials, Far-field Scattering, Optical Nanoantenna. He has published more than 60 research papers in international refereed journals and proceedings. Currently, he is working as the Research Scientist in the field of Super-lens/Hyperlens by using the Novel Metamaterials high-resolution imaging through (PIMI) under the
leadership of Prof. Xuefeng Liu in the Research Institute of Nano research Optics (RINRO) Nanjing University of Science and Technology, China.

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Published

2018-01-31

How to Cite

Cancan Hu, N.P.Yadav1, & Xuefeng Liu. (2018). Dumbbell Shaped Defected Ground Structure High Gain Antenna for Dual Band Application. International Journal of Advances in Microwave Technology, 3(1), 146-151. Retrieved from https://ijamt.com/index.php/ijamt/article/view/66