Substrate integrated waveguide cavity with several responses

A substrate-integrated waveguide and coplanar waveguide technology, applied in waveguide devices, electrical components, circuits, etc., can solve the problems of complex design, small number of transmission zeros, unfavorable filters, etc., and achieve good stop band suppression, Steep sideband characteristics, easy design effects

Inactive Publication Date: 2015-07-29
储鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] While the existing substrate-integrated waveguide resonators have superior in-band performance, their out-of-band characteristics have many shortcomings. It is difficult to introduce a sufficient number of flexible transmission zeros outside the band, which is not conducive to filters, duplexers, etc. Improvements in device sideband, stopband, isolation, etc.
Even if the existing technology can realize available transmission zeros in the upper and lower sidebands, there are still problems such as complex design, small number of transmission zeros, and inability to realize through a single structure.

Method used

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  • Substrate integrated waveguide cavity with several responses
  • Substrate integrated waveguide cavity with several responses
  • Substrate integrated waveguide cavity with several responses

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Embodiment 1

[0035] The present invention provides a substrate-integrated waveguide cavity with multiple responses, such as figure 1 As shown, its structure includes a substrate-integrated waveguide cavity 1, a perturbation 2 and an input / output port 3 arranged thereon, the perturbation 2 is set as a single through hole or a plurality of through holes, the through holes are concentrated or distributed, and the through The shape of the hole can be set as a circle or a square, or other shapes that are easy to use by those skilled in the art; the input / output port 3 can be set as a microstrip line structure, a coplanar waveguide structure or a substrate integrated waveguide structure, or a professional technology in the field For other waveguide structures that are easy for personnel to use, the input / output port 3 is set to be placed orthogonally or at an angle. The substrate-integrated waveguide cavity 1 is a structure surrounded by arrays of upper and lower surface metals and metal through...

Embodiment 2

[0037] The present invention provides a substrate-integrated waveguide cavity with multiple responses. A single substrate-integrated waveguide cavity can realize multiple lower sideband transmission zero points, such as figure 2 , image 3 As shown, a square substrate integrated waveguide cavity is used, and the input / output ports are placed orthogonally with microstrip lines, and the port lines are all deviated from the symmetrical position of the center. The interference is in a symmetrical position, and finally two lower sideband transmission zeros and one upper sideband zero are realized through a single substrate integrated waveguide square cavity, and the passband is a typical dual-mode resonance response.

Embodiment 3

[0039] The present invention provides a substrate-integrated waveguide cavity with multiple responses. A single substrate-integrated waveguide cavity can realize multiple upper sideband transmission zero points, such as Figure 4 , Figure 5 As shown, a square substrate integrated waveguide cavity is used, and the input / output ports are placed orthogonally with microstrip lines. One of the port lines deviates from the symmetrical position of the center, and there is a circular perturbation, and finally through a single substrate integrated waveguide square cavity Three upper sideband transmission zeros are realized, and the passband is a typical dual-mode resonance response.

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Abstract

The invention discloses a substrate integrated waveguide cavity with several responses. The substrate integrated waveguide cavity structurally comprises a substrate integrated waveguide cavity, an infinitesimal disturbance and input/output ports, wherein the infinitesimal disturbance is arranged on the substrate integrated waveguide cavity, the substrate integrated waveguide cavity generates various characteristic responses by different combinations of the infinitesimal disturbance and the input/output ports, and multiple transmission zeros can be introduced into upper and lower sidebands by single cavity and can form devices like filters and duplexers after cascaded, so that sufficient design flexibility, steep sideband characteristics and excellent stop band suppression degrees can be obtained. In addition, the substrate integrated waveguide cavity is simple in structure and easy in design, performance unreachable by conventional structures can be obtained by the similar structure.

Description

technical field [0001] The invention relates to the technical field of substrate-integrated waveguides, in particular to a substrate-integrated waveguide cavity with multiple responses applied to the circuit design of microwave and millimeter-wave devices. Background technique [0002] Resonators are the basic components of many microwave and millimeter-wave circuit devices such as filters, duplexers, and multiplexers. The performance of the resonator has an important impact on the characteristics of the final device. Resonators based on metal waveguides have the advantages of high Q value and high power capacity, but they are expensive, bulky, and difficult to integrate; resonators based on planar circuit technologies such as microstrip lines and coplanar waveguides are low in cost and small in size. And easy to integrate, but there are problems such as low Q value, radiation, crosstalk, etc., and the higher the frequency, the more serious the problem; the resonator based o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P7/06
Inventor 储鹏
Owner 储鹏
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