High-selectivity wide-stopband balance filter based on slot line
A balanced filter, high-selectivity technology, applied in waveguide-type devices, circuits, electrical components, etc., can solve the problem that differential transmission cannot achieve high selectivity of stop-band suppression range at the same time, so as to improve stop-band suppression range, reduce Small area, the effect of reducing loss
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[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0030] The invention provides a balanced filter with high selectivity and wide stop band, which simultaneously realizes high selectivity of the pass band and wide suppression range of stop band outside the pass band, and the filter has low insertion loss and compact circuit size.
[0031] figure 1It is a structural block diagram of the high selectivity wide stopband balanced filter proposed by the present invention. Among them, the π-shaped slot line network (stop band suppression module) is used to realize wide stop band, and the split ring resonator (pass band selection module) is used to realiz...
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