Title :
Broad-Band E-plane Filters With Improved Stop-Band Performance
Author :
Xu, Zhengbin ; Guo, Jian ; Qian, Cheng ; Dou, Wenbin
Author_Institution :
State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China
fDate :
7/1/2011 12:00:00 AM
Abstract :
In this letter, a novel broad-band E-plane filter with improved stop-band performance is proposed. The spurious pass bands commonly encountered with standard E-plane filters are suppressed by integrating band-stop structures into the coupling elements of the filter and are realized by fin-line post structures. By optimizing the geometry of fin-line post structure, the proposed filter achieves improved stop-band performance and wide bandwidth simultaneously without any associated increase in the manufacturing complexity. The simulated and experimental results are presented to validate the proposed filter.
Keywords :
band-pass filters; band-stop filters; fin lines; bandstop structures; broadband E-plane filter; coupling element; fin-line post structure; spurious passband; stopband filter; Bandwidth; Broadband communication; Couplings; Filtering theory; Loss measurement; Resonant frequency; Strips; Broad-band; fin-line filter; fin-line post structure; stop-band;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2011.2156775
