Title :
Ultra-wideband tapered slot antenna with band cutoff characteristic
Author :
Yoon, I.-J. ; Kim, H. ; Yoon, H.K. ; Yoon, Y.J. ; Kim, Y.-H.
Author_Institution :
Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
fDate :
5/26/2005 12:00:00 AM
Abstract :
A novel ultra-wideband (UWB) tapered slot antenna (TSA) is proposed that has both enhanced impedance bandwidth enough to cover UWB systems and band cutoff characteristic of 5 GHz WLAN band limited by IEEE802.11a and HIPERLAN/2. To achieve these two characteristics of wide bandwidth and partial band cutoff at the TSA, a broadband microstrip-slotline transition with multi-arm stubs and λ/4 short stubs, respectively, is used. From measured results, it is observed that wide bandwidth of about 2 octaves from 2.8 to 11.09 GHz for the VSWR<2 is achieved, while 5.05-5.93 GHz is cutoff with the radiated power of this cutoff band effectively suppressed as about -9 dB for the peak power level of other bands.
Keywords :
IEEE standards; slot antennas; ultra wideband antennas; wireless LAN; 2.8 to 11.09 GHz; 5.05 to 5.93 GHz; HIPERLAN/2; IEEE802.11a; WLAN band; band cutoff characteristic; broadband microstrip-slotline transition; impedance bandwidth; multi-arm stubs; partial band cutoff; ultra-wideband tapered slot antenna;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20050876
