%0 Journal Article
%T Improvement of Stopband Property of Parallel CoupledMicrostrip Bandpass Filters by Use of Open Stubs
%A Maryam Jaldi
%A Majid Tayarni
%J International Journal of Information and Electronics Engineering
%D 2013
%I IACSIT Press
%R 10.7763/ijiee.2013.v3.268
%X In this paper a novel method is presented forsuppressing spurious response of parallel coupled microstripfilters. This technique is based on introducing open stubs to thefilter. A third order filter is presented with central frequency at3GHZ. The filter insertion is less than 1 dB. The harmonicsuppression at the first and second harmonic is more than 20 dBand 25 dB, respectively. The performance of the new filter isalso compared with characteristic of a conventionally designedfilter to highlight the advantages of the proposed designed filter.
%K Bandpass filer
%K parallel coupled
%K spuriousresponse
%K stub
%U http://www.ijiee.org/papers/268-E032.pdf