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Elliptical hole truncated metal diaphragm and its e-plane waveguide filter

A metal diaphragm, elliptical hole technology, applied in the direction of waveguide type devices, electrical components, circuits, etc., can solve the problem of short metal diaphragm, and achieve the effect of small in-band ripple, increased performance, and easy processing

Active Publication Date: 2017-05-24
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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  • Elliptical hole truncated metal diaphragm and its e-plane waveguide filter
  • Elliptical hole truncated metal diaphragm and its e-plane waveguide filter
  • Elliptical hole truncated metal diaphragm and its e-plane waveguide filter

Examples

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Effect test

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 an elliptical hole truncated metal diaphragm and an E-plane waveguide filter formed thereof. The elliptical hole truncated metal diaphragm includes a rectangular metal diaphragm, and the metal diaphragm has four elliptical through holes, and the elliptical through hole The long axis of the 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 length of the wide side of the metal diaphragm. The four elliptical through holes are respectively elliptical hole A, elliptical hole B, elliptical Hole C, elliptical hole D, the left end of the metal diaphragm is provided with a left slit, the left slit communicates with the elliptical hole A, the right end of the metal diaphragm is provided with a right slit, the right slit communicates with the elliptical hole D, and the metal on the left side of the elliptical hole A The metal diaphragm is cut off before the diaphragm is formed, and the metal diaphragm on the right side of the oval hole D is formed and cut off. Compared with the prior art, the invention has smaller in-band ripple and better high-frequency suppression performance.

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 Patents(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