Title :
A new ultra wideband tapered balun for improved ELEVEN antenna
Author :
Liang Sun ; Biao Du ; Guodong Han ; Chuanfeng Niu
Author_Institution :
54th Res. Inst., CETC, Shijiazhuang, China
Abstract :
A novel wideband tapered balun based on ELEVEN antenna is presented and carefully examined in this paper. The proposed balun consists of one patch which is printed both sides. By using two smooth intergrade structures, balanced-to-unbalanced ports impedance of 50Ω-180Ω is acquired. This balun-transformer achieves an impedance bandwidth from 2-18 GHz for VSWR<;1.8, also in the frequency band, transmission coefficient |S21|>;1.1dB is achieved.
Keywords :
baluns; ultra wideband antennas; ELEVEN antenna; balanced-to-unbalanced port impedance; balun transformer; impedance bandwidth; smooth intergrade structure; transmission coefficient; ultra wideband tapered balun; Antenna feeds; Broadband antennas; Impedance matching; Reflector antennas; Wideband; Balanced to unbalanced; ELEVEN antenna; balun; wideband;
Conference_Titel :
Millimeter Waves (GSMM), 2012 5th Global Symposium on
Conference_Location :
Harbin
Print_ISBN :
978-1-4673-1302-5
DOI :
10.1109/GSMM.2012.6314008
