@ARTICLE{ iet:/content/journals/10.1049/joe.2014.0202, author = {Somdotta Roy Choudhury}, author = {Santanu Das}, keywords = {midband insertion loss;loss 1.8 dB;compact ultrawideband bandpass hlter;defected microstrip structure;defected ground structure;attenuation pole;frequency 2.1 GHz;observable transmission zeros;frequency 11.7 GHz;UWB BPF;end coupled microstrip transmission line;}, language = {English}, abstract = {A compact ultra-wideband (UWB) bandpass filter (BPF) is proposed based on end coupled microstrip transmission line, defected ground structure and defected microstrip structure. The experimental filter shows a fractional bandwidth of 110% at a centre frequency, with two observable transmission zeros (attenuation poles) at 2.1 and 11.7 GHz. Measured results exhibit an UWB passband from 3.02 to 10.6 GHz with mid-band insertion loss of 1.8 dB and group delay variation <0.45 ns. The BPF achieves a wide stopband with < −18 dB attenuation up to 20 GHz.}, title = {Modelling and validation of a simple and compact wide upper stop band ultra-wideband bandpass filter}, journal = {The Journal of Engineering}, issue = {9}, volume = {2014}, year = {2014}, month = {September}, pages = {503-504(1)}, publisher ={Institution of Engineering and Technology}, copyright = {This is an open access article published by the IET under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/)}, url = {https://digital-library.theiet.org/;jsessionid=6gg4a87p6flo5.x-iet-live-01content/journals/10.1049/joe.2014.0202} }