This paper presents a tapered slot antenna with
squared profile for wireless local area network (WLAN)
applications. The proposed antenna is composed of a feed line, a
microstrip-slotline transition and a radiating slot by using
squared profile. The measured results for the optimized design
show the bandwidths for the SIJ :::; -10 dB are about 830 MHz
(from 1.97 to 2.80 GHz) and 2850 MHz (from 3.97 to 6.82 GHz),
which can cover the 2.4/5.2/5.8 GHz WLAN operating bands and
2.5/5.5 GHz for worldwide interoperability for microwave access
(WiMAX) bands. The performances of the proposed antenna are
demonstrated along with the measured and simulated results.