Miniature bandpass microwave filter with ultradeep suppression in a wide stopband

The paper presents the results of a study of the design of a miniature band-pass filter based on multi-conductor strip resonators. Using the software for electrodynamic analysis, a sixth- order band-pass filter on seven-conductor resonators was designed and manufactured. Designed filter is characterized by small size and deep repression of the stop band. The measured filter characteristics exceed the characteristics of known analogs. The measured width of the high- frequency stop band of 24 times the center frequency of the bandwidth at the level of suppression at least 160 dB.