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Folded Substrate Integrated Waveguide Phase Shifter with Periodic Loading of csrr

A substrate-integrated waveguide and periodic technology, which is applied in the microwave field, can solve the problems of increasing the radiation loss of the phase shifter, destroying the shielding performance of SIW, and having no phase shifter, so as to reduce complexity, avoid radiation loss, and reduce size. Effect

Active Publication Date: 2022-02-01
合肥名龙电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this surface etching structure destroys the shielding of SIW, increases the radiation loss of the phase shifter, and deteriorates the amplitude balance between the phase shifter and the reference line
[0004] In terms of FSIW phase shifters, there are only reports on FSIW equal-width and unequal-length phase shifters and FSIW equal-length and unequal-width phase shifters. There have been no technical reports on phase shifters with CSRR structures loaded on FSIW.

Method used

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  • Folded Substrate Integrated Waveguide Phase Shifter with Periodic Loading of csrr
  • Folded Substrate Integrated Waveguide Phase Shifter with Periodic Loading of csrr
  • Folded Substrate Integrated Waveguide Phase Shifter with Periodic Loading of csrr

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] Such as figure 1 As shown in (a) and (b), the FSIW phase shifter periodically loaded with CSRR provided by the present invention includes: FSIW1 and periodically arranged CSRR 2; wherein FSIW 1 consists of a top metal layer 3, a first dielectric layer 4, The middle metal layer 5, the second dielectric layer 6, the underlying metal layer 7, and two rows of metallized through-hole arrays 8 that penetrate the first dielectric layer 4 and the second dielectric layer 6 are composed; between the two rows of metallized through-hole arrays 8 The distance W is the width of the FSIW, which determines the cut-off frequency of the FSIW; one side of the middle metal layer 5 is connected to a row of metallized through hole arrays, and the distance between the edge of the other side and another row of metallized through hole arrays g=0.125W;

[0030] Periodically arranged CS...

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Abstract

The invention discloses a folded substrate integrated waveguide phase shifter periodically loaded with CSRR, which comprises FSIW and periodically arranged CSRR. It has the following advantages: CSRR is loaded on the middle metal layer of FSIW, which maintains the shielding property of FSIW and avoids the radiation loss of CSRR; CSRR in FSIW has a strong loading effect, and only a small number of CSRR units are needed to achieve the desired phase. The phase shifter reduces the size of the phase shifter; there is no need for a transfer structure between the FSIW and the slow-wave structure, and it is easy to integrate with other FSIW-based circuits and can be directly embedded into the existing FSIW system.

Description

technical field [0001] The invention belongs to the field of microwave technology, and relates to a folded substrate integrated waveguide (FSIW) phase shifter periodically loaded with a complementary split resonant ring (CSRR). Background technique [0002] The phase shifter is an indispensable key device in the beamforming network, and it is required to have the characteristics of broadband, good phase shift flatness, low loss, good amplitude balance, and easy integration with other circuits. At present, most broadband phase shifters are implemented based on microstrip or E-plane waveguides. The former has a large loss in the microwave high-frequency band due to its open structure. Although the latter has a small loss, it has complex processing, large volume, high cost and It is not easy to integrate with planar circuits and other problems. As a planar waveguide structure, substrate integrated waveguide (SIW) achieves a perfect compromise between high-performance metal wav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/18
CPCH01P1/182
Inventor 朱舫盛俊豪罗国清张晓红代喜望
Owner 合肥名龙电子科技有限公司