Improvement of Stopband Property of Parallel Coupled Microstrip Bandpass Filters by Use of Open Stubs
In this paper a novel method is presented for suppressing spurious response of parallel coupled microstrip filters. This technique is based on introducing open stubs to the filter. A third order filter is presented with central frequency at 3GHZ. The filter insertion is less than 1 dB. The harmonic suppression at the first and second harmonic is more than 20 dB and 25 dB, respectively. The performance of the new filter is also compared with characteristic of a conventionally designed filter to highlight the advantages of the proposed designed filter.
bandpass filer parallel coupled spurious response stub
Maryam Jaldi Majid Tayarani
Department of Electrical Engineering, Iran University of Science and Technology, Narmak,Tehran, 16846-13114, Iran
国际会议
海口
英文
62-65
2011-02-22（万方平台首次上网日期，不代表论文的发表时间）