Acta Metallurgica Sinica(English letters) ›› 2007, Vol. 14 ›› Issue (4): 122-125.doi: 1005-8885 (2007) 04-0122-04

• Wireless • Previous Articles     Next Articles

Frequency notched wide slot antenna for UWB/2.4 GHz WLAN applications

LÜ Wen-jun; ZHU Hong-bo   

  1. Laboratory of Wireless communications and EMC, Nanjing University of Posts and Telecommunications
  • Received:2007-04-12 Revised:1900-01-01 Online:2007-12-24
  • Contact: LÜ Wen-jun


A compact frequency notched microstrip slot antenna for ultra-wideband (UWB) /2.4 GHz-band wireless local area network (WLAN) applications is proposed. The antenna is similar to a conventional microstrip slot antenna; however, by introducing a cross wide slot and a meandered-slotted stub, both compact size and frequency notched function can be achieved. It has been studied both numerically and experi- mentally for its impedance bandwidth, surface current distribution, radiation patterns, and gain. As will be seen, an operation bandwidth of over 4.6:1 ranging from 2.39 to 11.25 GHz for return loss lower than having a frequency notched band ranging from 4.75 to 5.85 GHz has been achieved, and good radiation performance over the entire frequency range has also been achieved.

Key words:

printed slot antenna; frequency notched; ultra- wideband; 2.4 GHz-band WLAN