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Hexagonal resonant cavity substrate integrated waveguide filter

A substrate-integrated waveguide and resonant cavity technology, applied to waveguide devices, circuits, electrical components, etc., can solve the problems of inflexible structure design and low Q value, and achieve good flexibility, high no-load quality factor, small The effect of insertion loss

Inactive Publication Date: 2012-10-10
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In comparison, the rectangular resonant cavity has a flexible structure and is easy to design, but its Q value is relatively low. The circular resonant cavity has a high Q value, but its structural design is not flexible enough.

Method used

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  • Hexagonal resonant cavity substrate integrated waveguide filter
  • Hexagonal resonant cavity substrate integrated waveguide filter
  • Hexagonal resonant cavity substrate integrated waveguide filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: as Figure 1a , Figure 1b and figure 2 As shown, the hexagonal resonant cavity substrate integrated waveguide filter, the filter includes a dielectric substrate 1 and the upper surface metal copper 21 and the lower surface metal copper 22 respectively located on the upper surface and the lower surface of the dielectric substrate 1; The through holes of the metallization 3 penetrate the dielectric substrate 1 and conduction with the metal copper 21 on the upper surface and the metal copper 22 on the lower surface, and the array of the metallization 3 forms a regular hexagonal first hexagonal resonant cavity connected in sequence 51. The second hexagonal resonant cavity 52 and the third hexagonal resonant cavity 53; Axis 8 is mirror symmetrical but not adjacent; the upper right side of the first hexagonal resonant cavity 51 coincides with the lower left side of the second hexagonal resonant cavity 52 and is provided with a first inductive coupling window ...

Embodiment 2

[0018] Embodiment 2: as Figure 1a , Figure 1b and image 3 As shown, the hexagonal resonant cavity substrate integrated waveguide filter, the filter includes a dielectric substrate 1 and the upper surface metal copper 21 and the lower surface metal copper 22 respectively located on the upper surface and the lower surface of the dielectric substrate 1; The through holes of the metallization 3 penetrate the dielectric substrate 1 and conduction with the metal copper 21 on the upper surface and the metal copper 22 on the lower surface, and the array of the metallization 3 forms a regular hexagonal first hexagonal resonant cavity connected in sequence 51, the second hexagonal resonant cavity 52 and the third hexagonal resonant cavity 53; the first hexagonal resonant cavity 51, the second hexagonal resonant cavity 52 and the third hexagonal resonant cavity 53 with The apex mode is evenly arranged; the upper right side of the first hexagonal resonant cavity 51 coincides with the ...

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Abstract

The invention relates to a hexagonal resonant cavity substrate integrated waveguide filter. The hexagonal resonant cavity substrate integrated waveguide filter comprises a medium substrate, and upper surface metal copper and lower surface metal copper, which are respectively positioned on the upper and lower surfaces of the medium substrate, wherein plated through holes are arrayed to form a first hexagonal resonant cavity, a second hexagonal resonant cavity and a third hexagonal resonant cavity, which are sequentially connected and are in a shape of regular hexagon; the first hexagonal resonant cavity and the third hexagonal resonant cavity are in mirror symmetry around the central axis of the second hexagonal resonant cavity and are not adjacent; the right upper side edge of the first hexagonal resonant cavity and the left lower side edge of the second hexagonal resonant cavity are coincided and provided with a first sensitive coupling window; the right lower side edge of the second hexagonal resonant cavity and the left upper side edge of the third hexagonal resonant cavity are coincided and provided with a second sensitive coupling window; a coplanar waveguide input end is arranged at the left lower side edge of the first hexagonal resonant cavity; and a coplanar waveguide output end is arranged at the right lower side edge of the third hexagonal resonant cavity.

Description

technical field [0001] The invention belongs to the field of microwave and millimeter wave filters, in particular to a substrate integrated waveguide filter. Background technique [0002] The filter is the basic unit circuit in the microwave circuit, and its performance directly affects the performance of the entire system. Traditional filters are generally divided into planar microstrip / stripline structure filters and metal waveguide structure filters. Although the planar microstrip / stripline structure filter is easy to integrate, it occupies a large area, has a large loss, and has a low Q value. Although the metal waveguide structure filter has the characteristics of small insertion loss, high quality factor, and good selectivity, it is bulky, troublesome in processing and debugging, and is not conducive to integration with active circuit substrates. [0003] The filter based on the substrate integrated waveguide technology not only retains the characteristics of high Q ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/208
Inventor 徐自强徐美娟夏红廖家轩尉旭波
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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