A Novel Compact Dual-wideband Bandpass Filter
In this paper, a new novel compact dual-band bandpass filter is proposed. The module consists of two square defected structure in the ground and a dual-line coupling structure are used for coupling enhancement, the transmission zeros are then introduced to avoid being interfered by the WLAN radio signals by properly via holes. The proposed component is fabricated in a planar nticrostrip configuration and simulated by CST 2009. The dimensions of the module can be controlled within 20mm X 19mm, its two passbands can be arbitrarily positioned, which exhibits 40％ 3-dB fractional bandwidth centred at 4.04 GHz and 34％ 3-dB fractional bandwidth centred at 7.81 GHz, low insertion loss (0.1 dB at 4.01 GHz), a low group delay is less than 0.4 ns, and good stopband characteristics (|S21|<- 55 dB at 2.2GHZ, |S21|<- 38.8 dB at 5.75GHz). We can see that it is the dual-band ultra-wideband(UWB) filter, which shows good frequency response. The proposed filter can be used in modern wireless communication systems.
Dual-wideband Bandpass filter Compact low insertion loss ultra-wideband (UWB) filter
L. Y. Cai G. Zeng X. W. Zhan
Institute of Applied Physics, University of Electronic Science and Technology of China Chengdu, 610054 China
国际会议
成都
英文
56-58
2010-05-08（万方平台首次上网日期，不代表论文的发表时间）