Develop procedure for designing fourth order microstrip dual-mode bandpass filters

This paper presents a straightforward procedure for designing four order microstrip dual-mode bandpass filters using full-wave electromagnetic (EM) simulation tools. This can be utilized by beginner designer in a microwave filter field, especially for complex distributed microstrip planar structure. The designed methodology was demonstrated by fabricated and measured of several experimental samples of fourth order microstrip dual-mode bandpass filters. The simulated and practical results are obtained.