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Millimeter wave one-to-four micro-strip power divider based on artificial magnetic conductor

A technology of artificial magnetic conductors and power dividers, applied in waveguide-type devices, electrical components, connecting devices, etc., can solve the problems of high insertion loss, energy loss, serious problems, etc., and achieve performance improvement, package saving, and low cost. Effect

Inactive Publication Date: 2019-09-06
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional microstrip power divider has a high insertion loss, which comes from the stray radiation of the microstrip line, including radiation waves, leakage waves and surface waves, especially in the millimeter wave frequency band, where the energy loss is even more serious

Method used

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  • Millimeter wave one-to-four micro-strip power divider based on artificial magnetic conductor
  • Millimeter wave one-to-four micro-strip power divider based on artificial magnetic conductor
  • Millimeter wave one-to-four micro-strip power divider based on artificial magnetic conductor

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Experimental program
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Effect test

Embodiment 1

[0042] Such as Figure 6 As shown, above the millimeter-wave power divider is the substrate of the dielectric cavity layer, and the hollow part of the dielectric plate forms a dielectric cavity, which is used for the propagation of electromagnetic waves, and the second is to avoid introducing more dielectric loss; above the dielectric cavity is a periodic artificial magnetic Conductor structure, the upper surface of the artificial magnetic conductor is a conductive metal layer, which is used to prevent electromagnetic wave leakage.

[0043] In the actual model, such as Figure 5 As shown, the millimeter-wave power divider loaded with a periodic artificial magnetic conductor is a three-layer structure that closely fits. Such as Figure 8 , Figure 9 The shown millimeter-wave power divider and the millimeter-wave power divider loaded with periodic artificial magnetic conductor S-parameter simulation waveform diagram, at the resonant frequency of 30GHz, the return loss is 21dB...

Embodiment 2

[0046] Such as image 3 As shown, the artificial magnetic conductor structure is composed of a mushroom-shaped unit array, and each mushroom-shaped unit structure is a metal disc on the lower surface of the dielectric layer and a metal through hole connected to the center of the metal disc, the middle dielectric layer, and the dielectric layer On the metal layer on the upper surface, 200 units form an artificial magnetic conductor structure.

[0047] Figure 7 It is the electromagnetic wave stop band generated by the artificial magnetic conductor structure, which can suppress the propagation of electromagnetic waves located in the stop band frequency range. The working frequency of the millimeter-wave power divider is located in it and loaded above it, which can effectively suppress the stray radiation of the microstrip transmission line, and the suppression effect is good. Figure 7 It is the electromagnetic wave stop band dispersion diagram of the periodic artificial magne...

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Abstract

The invention discloses a millimeter wave one-to-four micro-strip power divider based on an artificial magnetic conductor; the micro-strip power divider comprises a bottom layer, a middle layer and atop layer which are tightly attached, wherein the micro-strip power divider is on the bottom layer, a dielectric cavity is formed in the middle layer, and the top layer is of an artificial magnetic conductor periodic structure; the micro-strip power divider is arranged on the upper surface of a dielectric substrate; the dielectric cavity is arranged in the dielectric plate; and the artificial magnetic conductor periodic structure is arranged on the electromagnetic band gap dielectric substrate. The power divider is simple in design structure, easy to process, low in cost and capable of savingextra packaging; meanwhile, the structure enables the power divider to be more compact and can be closely manufactured with each other. By virtue of the introduction of the millimeter wave power divider, the application prospect of a millimeter wave circuit is expanded to a relatively high degree; the artificial magnetic conductor structure is introduced, so that stray radiation of a micro-strip line is inhibited, the insertion loss is reduced, the transmission performance of the millimeter wave power divider is further improved, and a foundation is laid for research and application of millimeter wave circuits.

Description

technical field [0001] The invention relates to a millimeter-wave quarter-to-four microstrip power divider based on an artificial magnetic conductor, which can be used in the technical field of millimeter waves. Background technique [0002] In recent years, with the development of new electromagnetic materials, the research and application of artificial magnetic conductor structure has become one of the hot spots in the microwave field. The artificial magnetic conductor structure is usually composed of periodically arranged metal patches on a dielectric substrate, which will form an electromagnetic bandgap characteristic in a specific frequency band. It can significantly improve the overall performance of microwave integrated circuits, microwave printed antennas, microwave high-energy accelerators, and radio frequency passive devices. Therefore, carrying out research on artificial magnetic conductors can explore its potential application value, and has extremely high acade...

Claims

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Application Information

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IPC IPC(8): H01P5/12
CPCH01P5/12
Inventor 许锋金俊陈洋
Owner NANJING UNIV OF POSTS & TELECOMM
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