Filtering device
A filter device and filter technology, which is applied in the direction of connection devices, waveguide devices, electrical components, etc., can solve the problems that the high-order harmonic suppression degree cannot meet the requirements, the insertion loss is large, and the high suppression degree cannot be obtained.
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[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.
[0020] An embodiment of the present invention provides a filtering device, such as figure 1 As shown, the device includes: a first-level unit and A1 a second-level unit B1.
[0021] The first-stage unit A1 is composed of at least three coaxial filters (11, 12, 13, 14), and the coaxial filters are arranged in sequence, for example, in the order of 11->12->13->14. arranged in order to form the arrangement direction C1. Each of the coaxial filt...
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