Open AccessInvestigation on the Effect of Deflected Ground Structure in Multi-Direction Steerable Antenna for WSN
Author(s) -
N. A. F. M. Zainudin,
Mohamed Nasrun Osman,
Thennarasan Sabapathy,
Muzammil Jusoh
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/767/1/012024
Subject(s) - ground plane , reconfigurable antenna , antenna (radio) , pin diode , beam steering , radiation pattern , parasitic element , position (finance) , diode , computer science , electrical engineering , engineering , acoustics , physics , antenna efficiency , finance , economics
In this paper, a multi-direction steerable radiation pattern antenna is designed and investigated, which operates at 2.45 GHz frequency. The radiation pattern reconfigurable is achieved by locating four parasitic elements surrounding the driving element at the centre. The artificial switches, are currently used to replace the ideal diode for proof of the concept, are inserted at the specific position on the parasitic element. By controlling the state ON/OFF of the switches, the parasitic is grounded via shorting pin, thus realizing the beam steering to be directed into four direction angles; right, left, upwards and downwards. In this research, an investigation on the effect of deflected ground plane on the steering angles has been carried out. With minimum numbers of switches deployed, the proposed antenna is a potential candidate to serve as a transmitting element in WSN applications.