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Truncate metal membrane with elliptical holes and E-plane waveguide filter composed of truncate metal membrane with elliptical holes

A metal diaphragm and elliptical hole technology, which is applied to waveguide devices, circuits, electrical components, etc., can solve the problem of short metal diaphragms, and achieve the effects of small ripples in the band, increased performance, and easy processing

Active Publication Date: 2015-02-18
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an elliptical hole truncated metal diaphragm and an E-plane waveguide filter composed of it, to solve the problem that the first-stage metal diaphragm is too short, to achieve convenient production, smaller ripples in the band, and high-frequency suppression performance better purpose

Method used

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  • Truncate metal membrane with elliptical holes and E-plane waveguide filter composed of truncate metal membrane with elliptical holes
  • Truncate metal membrane with elliptical holes and E-plane waveguide filter composed of truncate metal membrane with elliptical holes
  • Truncate metal membrane with elliptical holes and E-plane waveguide filter composed of truncate metal membrane with elliptical holes

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Embodiment 1

[0034] Such as Figure 1 to Figure 6 shown.

[0035] The elliptical hole cuts off the metal diaphragm, including a rectangular metal diaphragm, with a Y axis parallel to the long side of the metal diaphragm, and a Z axis parallel to the wide side of the metal diaphragm. There are 4 metal diaphragms Oval through hole, 4 oval through holes are arranged in a straight line along the Y-axis direction, the major axis of the elliptical through hole is a, the short axis of the elliptical through hole is b, and the value of b is less than or equal to the width of the metal diaphragm Side length, in the direction from the left end to the right end of the metal diaphragm, the four elliptical through holes are respectively elliptical hole A4, elliptical hole B6, elliptical hole C8, and elliptical hole D9. Connected with the elliptical hole A4, the left slit is a long and narrow slit extending from the left end of the metal diaphragm to the right end, the right end of the metal diaphragm ...

Embodiment 2

[0044] Such as Figure 1 to Figure 6 shown.

[0045] When the elliptical hole truncated metal diaphragm of embodiment 1 is applied to the waveguide filter, there is an E-plane waveguide filter with the following structure: the E-plane waveguide filter based on the elliptical hole truncated metal diaphragm includes a hollow standard waveguide 1 The elliptical hole truncated metal diaphragm described in Embodiment 1 is arranged in the cavity of the standard waveguide, the direction from the input port to the output port of the standard waveguide is set along the Y direction, and the left end of the front truncated metal diaphragm is facing the standard waveguide. Input port, cut off the right end of the metal diaphragm to face the output port of the standard waveguide; the upper long side of the metal diaphragm is flush with the upper inner wall of the standard waveguide, and the lower long side of the metal diaphragm is flush with the lower inner wall of the standard waveguide ...

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Abstract

The invention discloses a truncate metal membrane with elliptical holes and an E-plane waveguide filter composed of the truncate metal membrane with the elliptical holes. The truncate metal membrane with the elliptical holes comprises a rectangular metal membrane body, wherein the four elliptical holes are formed in the metal membrane body, the long axis of each elliptical hole is a, the short axis of each elliptical hole is b, the value of b is smaller than or equal to the length of each wide edge of the metal membrane body, the four elliptical holes sequentially include the elliptical hole A, the elliptical hole B, the elliptical hole C and the elliptical hole D, a left crack is formed in the left end of the metal membrane body and is communicated with the elliptical hole A, a right crack is formed in the right end of the metal membrane body and is communicated with the elliptical hole D, the portion, on the left side of the elliptical hole, of the metal membrane body forms a front truncate metal membrane part, and the portion, on the right side of the elliptical hole D, of the metal membrane body forms a rear truncate metal membrane part. Compared with the prior art, the truncate metal membrane with the elliptical holes and the E-plane waveguide filter composed of the truncate metal membrane with the elliptical holes have the advantages that the number of passband ripples is smaller, and the high-frequency rejection performance is better.

Description

technical field [0001] The invention relates to the field of microwave filters, in particular to an elliptical hole truncated metal diaphragm and an E-plane waveguide filter composed of the same. Background technique [0002] Filters, as frequency selective components, play an important role in today's communication systems, and are also an indispensable part of high-frequency microwave circuits. The bandpass filters commonly used in microwave, millimeter wave and terahertz circuits today are all waveguide filters based on waveguide transmission elements, especially the E-plane metal diaphragm waveguide filter because of its simple structure, easy processing and installation, and easy Mass production, high Q value and good filtering characteristics can be obtained, and it has been widely used. For ordinary E-plane metal diaphragm filters, because the coupling metal is parallel to the electric field in the waveguide, the current value on the coupling metal is small, so that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/208
Inventor 张波纪东峰刘戈周游蒙泽祖牛中乾司梦姣樊勇
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA