Defected Ground Structure Based Reconfigurable UWB Antenna for IoT Applications
P. Pardhasaradhi1, B T P Madhav2, S. Sai Tejini Varma3, Vidiyala Pavani4, Gade Manoj Kumar5, T. Anilkumar6
1P. Pardhasaradhi, Dr. P. Pardhasaradhi is Now Working as a Professor, Department of Engineering and Communication Engineering, K L Deemed to be University (KLEF).
2B T P Madhav, Dr. B T P Madhav is Working as Professor, Department of Engineering and Communication Engineering, K L Deemed to be University (KLEF).
3S. Sai Tejini Varma, Sai Tejini Varma is Now Pursuing Bachelor of Technology Department of Engineering and Communication Engineering, at K L Deemed to be University (KLEF).
4Vidiyala Pavani, Vidiyala Pavani is Now Pursuing Bachelor of Technology Department of Engineering and Communication Engineering, K L Deemed to be University (KLEF).
5Gade Manoj Kumar, Gade Manoj Kumar Born in 1997 at Vijayawada, India. He is Now Pursuing Bachelor of Technology Department of Engineering and Communication Engineering, K L Deemed to be University (KLEF).
6T Anilkumar is Working as Research Fellow in the Department of Engineering and Communication Engineering, ALRC Research Center of KLEF.
Manuscript received on 17 April 2019 | Revised Manuscript received on 22 May 2019 | Manuscript published on 30 May 2019 | PP: 3030-3036 | Volume-8 Issue-1, May 2019 | Retrieval Number: A3476058119/19©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: A defected ground structure reconfigurable UWB antenna is developed and presented in this paper. The proposed antenna switches between a narrow band and ultra-wideband. The proposed antenna occupies the compact dimension 37.5x35x1.6mm3. In this design, a pair of ohm shaped slots coupled together by a horizontal slot is considered as defected ground structure. The proposed antenna has the capability of sensing the entire UWB range from 3.1GHz to 10.6GHz and extends up to 15 GHz. Later, a study is performed to understand the switching behavior of the antenna when the switching elements are incorporated in the defected ground structure elements of the proposed antenna and compared with ideal switching case, PIN diode switches. The switching conditions of the proposed antenna yields the frequency reconfigurable nature among the spectrum that covers S-band, C-band and UWB with maximum gain of 2.83dB, 5.12dB and 5.2dB respectively which shows the compatible use in IoT devices.
Index Terms: Defected Ground Structure, UWB, Internet of Things, Switchable.
Scope of the Article: Reconfigurable Computing