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A low-profile planar antenna for wireless sensor network with rotated A-shaped patch and defected ground plane

REZAUL AZIM1,* , M. TARIQUL ISLAM2, MD. MOTTAHIR ALAM3, KHALID A. FAKEEH4, MAHABOOB SHARIEF SHAIK5

Affiliation

  1. Department of Physics, University of Chittagong, Chittagong 4331, Bangladesh
  2. Department of Electrical, Electronic & Systems Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Malaysia
  3. Department of Electrical and Computer Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia
  4. Department of Information Systems, King Abdulaziz University, Jeddah 21589, Saudi Arabia
  5. Department of Computer Science & Engineering, JJT University, Jhunjhunu, Rajasthan 333001, India

Abstract

A rotated A-shaped antenna working at around 2.45 GHz is presented for a wireless sensor network application. The studied antenna is comprised of an A-shaped patch and a small defected ground plane and is printed on both sides of the FR4 substrate material. One I-shaped parasitic slit is added to the tip of a rotated A-shaped patch to form a matching circuit that helps the studied antenna to excite at around 2.45 GHz. The experimental result shows that for S11 ≤ -10dB, the presented antenna achieved an impedance band ranging from 2.3 to 2.57 (270 MHz) GHz. The studied antenna also attained appreciable gain, efficiency and exhibits a stable omnidirectional radiation pattern over the working band, which makes it suitable for sensor nodes.

Keywords

A-shaped patch, Defected ground plane, Nodes, Parasitic slit, Planar antenna, Wireless sensor network.

Citation

REZAUL AZIM, M. TARIQUL ISLAM, MD. MOTTAHIR ALAM, KHALID A. FAKEEH, MAHABOOB SHARIEF SHAIK, A low-profile planar antenna for wireless sensor network with rotated A-shaped patch and defected ground plane, Optoelectronics and Advanced Materials - Rapid Communications, 15, 9-10, September-October 2021, pp.480-486 (2021).

Submitted at: Jan. 16, 2021

Accepted at: Oct. 7, 2021