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Microwave Filter with High Selectivity and Wide Rejection and Its Design Method

A microwave filter, high-selectivity technology, applied in waveguide-type devices, circuits, electrical components, etc., can solve the problems of increased filter area, multi-order, etc., to achieve suppression of parasitic passband, low processing cost, and production. short cycle effect

Active Publication Date: 2018-04-10
超视距(南京)科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the above-mentioned deficiencies in the prior art, the microwave filter with high selectivity and wide suppression provided by the present invention and its design method solve the problem that the conventional high-selectivity filter needs more orders, which leads to the increase of the filter area.

Method used

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  • Microwave Filter with High Selectivity and Wide Rejection and Its Design Method
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  • Microwave Filter with High Selectivity and Wide Rejection and Its Design Method

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Embodiment Construction

[0037] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0038] The high-selectivity and wide-rejection microwave filter includes a PCB board and a metal carrier board bonded together by a conductive adhesive; the PCB board and a metal carrier board are bonded together by a conductive adhesive, and baked in the oven for 2 hours Take it out, and the baking temperature is 150°C. This temperature will not damage the metal carrier while ensuring that the two are fully bonded.

[0039...

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Abstract

The invention discloses a microwave filter with high selectivity and wide suppression and a design method thereof, wherein, the microwave filter with high selectivity and wide suppression is a PCB board and a metal carrier board bonded together by conductive adhesive; the PCB board includes a dielectric substrate , both the upper and lower surfaces of the dielectric substrate have a copper coating; the copper coating on the upper surface of the dielectric substrate includes an input feeder and an output feeder arranged at both ends of the dielectric substrate, the input feeder is connected to the first parallel coupling structure, and the output feeder is connected to the second parallel coupling structure Structural connection; both the first parallel coupling structure and the second parallel coupling structure have a defect structure; the first parallel coupling structure and the second parallel coupling structure are connected together through two filter feeders; each filter feeder At least one SIR resonator is connected; the two filter feeders are provided with metal vias conducting with the copper coating on the lower surface of the dielectric substrate.

Description

technical field [0001] The invention belongs to the technical fields of communication equipment, radar equipment, measuring instruments, etc., and in particular relates to a microwave filter with high selectivity and wide suppression and a design method thereof. Background technique [0002] With the rapid development of wireless communication technology, microwave devices have received more and more attention. The emerging wireless communication system applications also put forward higher requirements for wireless communication equipment. High performance, high reliability, miniaturization, and low cost have become the basic requirements of new wireless communication electronic equipment. Microwave filter is one of the important components in modern communication system. It plays an important role in selecting signals, and its performance is directly related to the quality of the entire communication system. With the development of wireless communication systems, spectrum ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/212
Inventor 邵振海何超升
Owner 超视距(南京)科技有限责任公司
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