Highly compact meander line antenna using DGS technique for WLAN communication systems

Abstract

A technique for developing highly miniaturized printed circuit antenna is proposed, which uses a meander line and Defected Ground Structure (DGS). This antenna's VSWR meets the requirements for the IEEE 802.11a (5.15-5.35 GHz and 5.47-5.725GHz) American standard and HIPPER LAN/2 (5.15-5.35GHz and 5.725- 5.825GHz) European standard. By changing certain antenna parameters its operational frequency can be controlled precisely. The prototype antenna exhibits an impedance bandwidth of 13% for which the return-loss is better than 10 dB. The measured and simulated results confirm the antenna's viability for practical applications. © IEICE 2011.