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Method for solving effective Q value of P-band substrate integrated waveguide circulator

A substrate-integrated waveguide and circulator technology, applied in waveguide-type devices, design optimization/simulation, electrical components, etc., can solve problems such as the calculation of the effective Q value of the substrate-integrated waveguide circulator, so as to speed up design and testing effect of cycles

Active Publication Date: 2021-04-23
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0006] Aiming at the problem that the effective Q value of the current substrate-integrated waveguide circulator cannot be calculated by simulation software and related theoretical formulas

Method used

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  • Method for solving effective Q value of P-band substrate integrated waveguide circulator
  • Method for solving effective Q value of P-band substrate integrated waveguide circulator
  • Method for solving effective Q value of P-band substrate integrated waveguide circulator

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Embodiment Construction

[0062] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0063] According to the aforementioned steps, the following example circulator is used as an example to verify the calculation method of the present invention with a substrate-integrated waveguide circulator whose working center frequency is 0.955 GHz. The bandwidth is less than -15dB, and the insertion loss is less than 1dB. The basic structure is divided into two parts, the central junction and the transmission line. The transmission line part adopts the substrate integrated waveguide structure, and the central junction is composed of two parts: a ferrite disc and a matching copper platform. The three-dimensional view of the circulator and the S-parameter curve of this example are shown in the appendix of the manual figure 1 , figure 2 .

[0064] First, change the parameters of the example circulator within a certain range, and the range...

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Abstract

The invention belongs to the field of microwave passive devices, and particularly relates to a method for solving effective Q value of a P-band substrate integrated waveguide circulator. The effective Q value of the circulator is defined through the relationship between the physical meaning of the Q value and the insertion loss of the circulator, and the calculation method of the effective Q value is deduced; the method comprises the following steps: firstly, determining a substrate integrated waveguide circulator working in a P waveband, carrying out variable change and simulation on various parameters of the substrate integrated waveguide circulator, and calculating an effective Q value according to a simulation result; fitting an effective Q value calculation method of single parameter change and an effective Q value calculation method of multi-parameter change through a mathematical statistics method and software calculation; by calculating the effective Q value and observing the change condition of the effective Q value, judging the performance of the circulator quickly, achieving the guidance effect on parameter adjustment, and accelerating the design and test period of the circulator.

Description

technical field [0001] The invention belongs to the field of microwave passive devices, in particular to a method for solving the effective Q value of a P-band substrate integrated waveguide circulator. Background technique [0002] With the development of microwave technology, miniaturization and easy integration have become the main direction for the development of microwave devices in the future. So how to ensure high performance while realizing miniaturization is a key issue faced by experts in the industry. [0003] Designing new microwave devices using substrate integrated waveguide structure is considered to be one of the methods to solve this problem. Compared with the traditional waveguide circulator, the size of the circulator designed using the substrate integrated waveguide is greatly reduced, and it is similar to a planar structure, which is conducive to integration, and at the same time it has a traditional miniaturized structure far exceeding that of a micros...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20H01P1/383
CPCG06F30/20H01P1/383
Inventor 汪晓光马洪泽王浩川孙佳栋韩天成杨光
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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