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Broadband probe-fed notched plate antenna

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2 Author(s)
Zhi Ning Chen ; Centre for Wireless Commun., Nat. Univ. of Singapore, Singapore ; Chia, M.Y.W.

A probe-fed notched plate antenna for improving the impedance bandwidth is experimentally presented. The notched square plate is suspended above the ground plane. The spacing between the plate and ground plane is ~7% of the operating wavelength. The plate antenna is diagonally fed by a coaxial probe. Measured results show that the notches at the plate function as the reactive loading and, as a result, the enhanced impedance bandwidth reaches the order of 20% without any parasitic elements. The effects of geometric parameters of the plate antenna on the bandwidth are discussed. The radiation patterns and the achieved gains are also examined experimentally

Published in:

Electronics Letters  (Volume:36 ,  Issue: 7 )