A Miniaturized Substrate Integrated Waveguide High-Order Filter
A substrate-integrated waveguide and filter technology, which is applied to waveguide devices, circuits, electrical components, etc., can solve the problems of difficult filters, large volume, and poor practicability, and achieve good frequency selection characteristics
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[0043] The present invention also discloses a high-order filter based on the first embodiment above, which can further improve the rectangularity of the filter and improve the frequency selection performance of the filter.
[0044] A miniaturized substrate-integrated waveguide high-order filter, including the above-mentioned miniaturized substrate-integrated waveguide filter, and a slot is slotted between two aperture resonators 4, and a high-order resonator 6 is inclined; The first-order resonator 6 includes two split rings, and the two split rings are connected by a microstrip line with the same width as the rings; the high-order resonator 6 is combined with the two split resonators 4 to form a coupling structure.
[0045] The coupling structures are arranged rotationally symmetrically with respect to the center of the substrate 5 .
[0046] The length of the high-order resonator 6 and the length of the aperture resonator 4 jointly control the center frequency. The high-ord...
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