PURPOSE: A double band-stop filter is provided to reduce the physical size of a double band-stop filter by including a transmission line between a plurality of resonators which is arranged in the both sides of a housing. CONSTITUTION: An input port(112) and an output port(114) are ...
一种采用三路径信号干扰的双频带阻滤波器 One kind of three-path signal interference dual-band rejection filter 来自 Google Patents 喜欢 0 阅读量: 29 公开/公告日期: Oct 5, 2016 发明人:褚庆昕,邱雷雷 摘要: 本发明公开了一种采用三路径信号干扰的双频带阻滤波器,包括输入输出端口,第一传输主路径,第...
A novel concept of a compact, low insertion-loss dual-band-rejection filter (DBRF) is proposed, and its equivalent circuit model is given. The filter consi... H Xin,Q Zhang,S He - 《Microwave & Optical Technology Letters》 被引量: 18发表: 2010年 Compact dual-band bandpass filter with...
The proposed resonator is a quad-mode resonator, and one resonator can realize a dual-band filter. The frequency space between two passbands and bandwidths of two passbands can be controlled by the shorted stubs. Wide out-of-band rejection can be achieved by selecting the desired ...
Common-mode rejection is 58 and 45 dB for the first and second central frequencies, respectively. 展开 关键词: dual-layer common ground microstrip bandpass filter balanced-to-balanced dual-band miniaturized common mode rejection high spurious attenuation ...
An ultra-wideband (UWB) bandpass filter with 5 GHz to 6 GHz rejection band is proposed. To inhibit the signals ranged from 5 to 6 GHz, two pairs of stepped- impedance coupled open stubs are implemented on the multiple-mode resonator (MMR) The designed UWB filter has two transmission bands...
This letter presents a novel dual-band bandpass filter with controllable frequencies and bandwidths as well as a high out-of-band rejection level. The proposed filter utilizes a novel stub-loaded quad-mode resonator. Every two modes, which can be flexibly controlled, are utilized to form a pas...
A two-stage DBBSF is also presented and simulated, which shows maximum stopband rejection up to 49 dB. 展开 关键词: Dual band Educational institutions Transmitters Bandstop filter defected ground structure (DGS defected microstrip structure (DMS dual-band miniaturized filter ...
A new dual-band microstrip filter based on square ring and loaded stub is proposed.The center frequencies of its low-band and highband can be easily adjusted by the dimensions of the square ring and loaded stub.Then the simulations are carried out and the experimental prototype is also made....
Kou, "Compact dual-band bandpass filter using folded SIR with two stubs for WLAN," Progress In Electromagnetic Research, Vol. 117, 357-364, 2011.Ma, D., Z. Y. Xiao, L. Xiang, X. Wu, C. Huang, and X. Kou, "Compact dual-band bandpass filter using folded SIR with two stubs for...