L-shaped monopole antenna with modified partial ground plane for multiband operation

Abstract

In this paper a design of L-shaped monopole antenna (LMA) with modified partial ground plane for multiband operation is presented. The `dimension of proposed antenna is 40× 47 mm2 with 1.6 height using Teflon substrate having dielectric constant 2.1. The ground plane is amended by inserting an anti-symmetric horizontal L-slots. Single band to multiband behaviour is accomplished by applying two horizontal L-slots on partial ground plane of LMA. Both the slots are antisymmetric to Y-axis. The parametric study has also been done which is responsible for antenna behaviour. The operating frequency bands of designed antenna are 2.35-2.91GHz,3.24-3.51GHz,4.31-5.30GHz and 5.90-6.31GHz which is suitable for Bluetooth (2.4GHZ),WLAN (2.4GHz,5.2GHz), WiMAX (2.3GHz, 2.5GHz, 3.5GHz, 5.2GHz), C-band (4-8GHz) and S-DMB (2.6GHz) applications. By using the HFSS simulator we accomplished that our designed antenna show an enhancement of bandwidth and good matching impedance.