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Full magnetic wall triangular filter

A triangular and filter technology, applied in waveguide-type devices, electrical components, circuits, etc., can solve problems such as size reduction, and achieve the effect of small insertion loss, improved transmission performance, and light weight

Active Publication Date: 2019-07-30
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

More dual-passband filters have been researched and applied, but the size still needs to be further reduced, and the performance needs to be further improved

Method used

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specific Embodiment

[0026] The following is based on Figure 1 to Figure 3 The specific embodiment of the present invention is further described:

[0027] see figure 1 , this embodiment provides a third-order full magnetic wall triangular resonator double-pass band filter, which is composed of six layers, including a top metal foil, a second dielectric substrate, a prepreg, a middle metal foil, a dielectric substrate one, and a bottom metal foil Fits snugly from top to bottom. Among them, the top metal foil, the middle metal foil and the bottom metal foil are all made of copper foil, the dielectric substrate 1 and the dielectric substrate 2 are made of RO4350B with a relative dielectric constant of 3.66, and the prepreg is made of RO4450F with a relative dielectric constant of 3.66.

[0028] see figure 1 , Dielectric substrate 2 and prepreg are smaller in plane size than dielectric substrate 1 and the underlying metal foil, this is to expose the microstrip lead-out line of the intermediate met...

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Abstract

The invention discloses a full magnetic wall triangular filter. The full magnetic wall triangular filter comprises a top metal foil, a second dielectric substrate, a prepreg, an intermediate metal foil, a first dielectric substrate and a bottom metal foil which are arranged from top to bottom in sequence; the two dielectric substrates are tightly bonded through the prepreg; a triangular resonant patch unit, a coupling structure and a feeder structure are arranged on the first dielectric substrate; and a two-pass-band full magnetic wall right-angled triangular resonant cavity third-order filteris designed by utilizing a full magnetic wall right-angled triangular resonant cavity. The full magnetic wall triangular filter has the advantages of small size, light weight, low insertion loss in pass-band, high return loss, high interband inhibition in double pass bands and the like; moreover, the size of a resonant unit is small; the structure among various resonant units is compact; and theplane size of the filter is greatly reduced.

Description

technical field [0001] The invention relates to a wireless communication device, in particular to an all-magnetic wall triangular filter. Background technique [0002] In recent years, with the rapid development of wireless communication technology, there are more and more projects involving microwave communication. Filters are an indispensable part of modern microwave relay communication, microwave satellite communication, electronic countermeasures and other systems, and are also the most important , Microwave passive devices with the highest technical content. However, with the development of modern electronic technology, miniaturization and multi-function of communication terminals have become a trend. Under this trend, while the filter is required to have high performance, it is also required to have characteristics such as miniaturization and multiple passbands. [0003] In recent years, SIW filters have been well researched and developed. Many dual-passband filters...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/208
CPCH01P1/208
Inventor 陈卫东陈畅张乔张倾远
Owner UNIV OF SCI & TECH OF CHINA
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