Compact Tri-Band Rectangular Meander Antenna With Asymmetrical L-Shaped Strips for Wlan/Wimax Applications

Abstract

Abstract-A novel meander antenna with tri-band operation is presented for WLAN and WiMAX applications. The proposed antenna consists of a rectangular meander with two asymmetrical L-shaped strips. The rectangular meander is used for the lower band operation at 2.5 GHz. The left L-shaped strip is employed to generate the higher resonant mode at about 5.5 GHz, while the right L-shaped strip is employed to create a new resonant mode at 3.5 GHz and enhance the bandwidth of the middle band operation. Prototype of the proposed antenna has been constructed and experimentally studied. The measured 10 dB return loss bandwidths at the resonant frequency of 2.5, 3.5, and 5.5 GHz can be up to 520 MHz (2.18-2.70 GHz), 800 MHz (3.34-4.14 GHz) and 830 MHz (5.07-5.90 GHz), respectively. The antenna is simple in configuration and has a compact dimension of 37 × 42 × 1 mm 3 .