Miniaturised dual‐wideband bandpass filter using novel dual‐band coupled‐line sections

2013 ◽  
Vol 49 (18) ◽  
pp. 1162-1163 ◽  
Author(s):  
Jin Xu ◽  
Wen Wu
Keyword(s):  
Bandpass Filter ◽  
Dual Band ◽  
Coupled Line

Dual-band coupled-line bandpass filter with independently tunable bandwidths

2016 ◽  
Vol 13 (9) ◽  
pp. 60-64 ◽  
Author(s):  
Yongle Wu ◽  
Lixia Nan ◽  
Lingxiao Jiao ◽  
Weimin Wang ◽  
Yuanan Liu
Keyword(s):  
Bandpass Filter ◽  
Dual Band ◽  
Coupled Line

Coupled‐line dual‐band bandpass filter with compact structure and wide stopband

2014 ◽  
Vol 50 (3) ◽  
pp. 187-189 ◽  
Author(s):  
Yongle Wu ◽  
Siyue Zhou ◽  
Weiwei Zhang ◽  
Mengbi Liao ◽  
Yuanan Liu
Keyword(s):  
Bandpass Filter ◽  
Dual Band ◽  
Compact Structure ◽  
Coupled Line

A Reconfigurable Compact Coupled Line Multiple-Band Bandpass Filter

2013 ◽  
Vol 655-657 ◽  
pp. 1555-1561
Author(s):  
Wen Ko ◽  
Man Long Her ◽  
Ming Wei Hsu ◽  
Yu Lin Wang
Keyword(s):  
Transmission Line ◽  
Bandpass Filter ◽  
Dual Band ◽  
Pass Band ◽  
Coupled Line ◽  
Circuit Structure ◽  
Coupled Lines ◽  
In Series ◽  
Multiple Band ◽  
Triple Band

This study proposes a circuit structure with reconfigurable multiple bands bandpass filter. This circuit can provide a triple-band or dual-band bandpass facility by adjusting two open stubs (L6 and L7) location. The circuit design used three sections of transmission line in series, the two sets of the coupled lines connected to the gap in each transmission line, and two open stubs in the appropriate locations. The design and manufacturing of the circuit structure is innovative and simple. The center frequencies of the triple-band bandpass filter are set at 2.4, 4.2, and 6.5 GHz, respectively, while the center frequencies of the dual-band bandpass filter are the two lower pass band of the triple-band bandpass filter at 2.4 and 4.2GHz. The filters were simulated using the full-wave electromagnetic simulator, IE3D, and measured by Anritsu-37269D. The simulated and measured results show good agreement in the frequency of interest.

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