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Waveguide filter suitable for additive manufacturing method

A waveguide filter, additive manufacturing technology, applied in waveguide-type devices, circuits, electrical components, etc., can solve complex and tedious problems, affecting filter speed and control, etc.

Active Publication Date: 2021-05-18
SWISSTO 12 SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] Therefore, the need to interrupt the additive manufacturing method during the manufacturing process to add supports and thus ensure the stability of the structure to be printed can prove complex and tedious and can significantly affect the use of additive methods to manufacture this type of filter. speed and control

Method used

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  • Waveguide filter suitable for additive manufacturing method
  • Waveguide filter suitable for additive manufacturing method
  • Waveguide filter suitable for additive manufacturing method

Examples

Experimental program
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Embodiment Construction

[0064] according to figure 1 and figure 2 The waveguide filter of the embodiment shown comprises a core 3 comprising a plurality of inner faces 7, 8, 9, which are covered by a metal film 4 and define a channel 2 configured to pass through a predetermined channel 2. Bands and operating bands filter electromagnetic signals. For example, filters are designed to allow passage of narrow passbands in the frequency range of the order of 1 GHz to 80 GHz.

[0065] The core 3 comprises an outer face 12 which, for example, is shaped like a right prism, while the channel 2 comprises a plurality of grooves 6 or corrugations, ie cavities forming the filter section 6 . The grooves or corrugations extend radially around the channel 2, so that their diameter widens in a number of longitudinal sections. exist figure 1 The cross section of the groove 6 is in the shape of a triangle or a rectangle. Adjacent grooves 6 are spaced in pairs by steps p in the longitudinal direction.

[0066] Th...

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PUM

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Abstract

The invention relates to a waveguide filter (1) having a core (3) comprising an external face (12) and internal faces (7, 8, 9) defining a channel (2) for filtering and guiding the waves. The channel (2) comprises several slots (6), each having a first and a second face (7, 8). The first face (7) is inclined in relation to the second face (8). The invention also relates to a method for manufacturing the waveguide filter (1).

Description

technical field [0001] The present invention relates to waveguide devices, and more particularly to waveguide filters suitable for use in additive manufacturing methods. The invention also relates to a method for the additive manufacturing of such filters. Background technique [0002] Radio frequency (RF) signals can propagate in space or in waveguide devices. A waveguide filter is a waveguide device used to manipulate RF signals in the frequency domain. Examples of the use of microwave filters are found in particular in satellite communications. [0003] A wide variety of different types of waveguide filters exist. For example, corrugated waveguide filters—also known as ridged waveguide filters—include channels with a number of ridges or teeth that periodically reduce the inner height of the waveguide. They are used in applications that require a wide passband, good matching of the passband, and a wide stopband at the same time. It basically involves a low pass model ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/208
CPCH01P1/208H01P1/211H01P11/007Y02P10/25H01P11/002H01P1/207
Inventor 桑蒂亚戈·卡德维拉卡斯坎特托米斯拉夫·杰博戈维奇埃斯特万·梅纳格戈麦斯
Owner SWISSTO 12 SA