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Substrate integrated spoof surface plasmon polariton waveguide

A technology of artificial surface plasmon and substrate integrated waveguide, which is applied in the direction of waveguide, waveguide-type devices, electrical components, etc., can solve the problems of difficult processing, large volume, high cost, etc., and achieve the reduction of electromagnetic wave radiation phenomenon, strong binding performance, The effect of artificial design convenience

Pending Publication Date: 2018-05-08
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at higher frequencies, especially in the millimeter wave band, the electromagnetic wave leakage and radiation of the microstrip circuit are more serious, and the transmission loss of the circuit is large.
Although the metal waveguide has the advantages of low insertion loss, low radiation, and high quality factor in the high frequency band, its volume is too large, processing is difficult, and the cost is expensive.

Method used

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  • Substrate integrated spoof surface plasmon polariton waveguide
  • Substrate integrated spoof surface plasmon polariton waveguide
  • Substrate integrated spoof surface plasmon polariton waveguide

Examples

Experimental program
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Embodiment 1

[0019] Integrate artificial surface plasmon waveguides for double-sided rectangular slotted substrates, such as figure 1 As shown, Embodiment 1 is provided with a substrate integrated waveguide 1 and a metal slot 2, the metal slot 2 is provided in the substrate integrated waveguide 1, the metal slot 2 is a periodic metal slot, and the metal slot 2 Distributed on one side of the substrate integrated waveguide 1 or distributed on both sides of the substrate integrated waveguide 1 in the manner of symmetry, anti-symmetry, offset symmetry, etc., it is used to transmit microwave and terahertz artificial For surface plasmon, the material of the dielectric substrate is Rogers RT5880, the dielectric constant is 2.2, the thickness is 0.508mm, and the transmission loss angle is 0.0009; the material of the metal film transmission line and the metal through hole is copper. The unit structure size of the waveguide is selected as a=12mm, d=2.5mm, and h is increased from 5mm to 8mm. The disp...

Embodiment 2

[0021] The bandpass filter designed for application example 1, such as image 3 shown. The filter is divided into three parts, the left and right ends are microstrip transmission lines, and the middle is a substrate-integrated artificial surface waveguide with double-sided rectangular metal slots. The filter has a symmetrical structure, and both ends are feeding terminals, w 0 =1.6mm, which guarantees the port impedance of 50Ω. The electromagnetic wave is converted from the microstrip line to the substrate-integrated waveguide by the tapered gradient transition structure, w tra =3.5mm, which realizes impedance matching with the substrate integrated waveguide. In order to achieve wave vector matching, the metal slot height is distributed with a gradient increase. Other main parameters are as follows: a=12mm, d=2.5mm, h=8mm. Depend on Figure 4 The simulation results show that the band-pass range of the filter is 8.5GHz to 12.3GHz, and it has relatively steep rising and fa...

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Abstract

The invention relates to a substrate integrated spoof surface plasmon polariton (SSPP) waveguide, and relates to a plasmon polariton waveguide. The substrate integrated SSPP waveguide is provided witha substrate integrated waveguide and metal slots disposed on the substrate integrated waveguide. The metal slots are periodic metal slots and are distributed on a single side of the substrate integrated waveguide or on double sides of the substrate integrated waveguide symmetrically, anti-symmetrically, and offset-symmetrically to transmit microwaves and terahertz SSPPs with extremely strong local field-binding properties. The substrate integrated SSPP waveguide has a band-pass characteristic, and relatively sharp rising and falling edges, and can adjust the pass-band range by changing the effective lengths of the slots and the widths of the substrate integrated waveguide. Through scale transformation, enlargement and reduction units, and branch structure size, the substrate integrated SSPP waveguide can be used for the transmission of SSPP electromagnetic waves in microwave, millimeter wave or terahertz bands.

Description

technical field [0001] The present invention relates to a plasmon wave guide, in particular to a substrate-integrated artificial surface plasmon wave guide. Background technique [0002] With the development of information technology, the capacity requirements of communication systems are getting higher and higher. At the same time, due to the extremely rich spectrum resources in the high-frequency microwave frequency band, modern communication systems are developing towards the high-frequency microwave frequency band, especially the millimeter wave frequency band. Microstrip circuits have the advantages of small size, compact structure, light weight and low cost, and are widely used in microwave circuits. However, at higher frequencies, especially in the millimeter wave band, the electromagnetic wave leakage and radiation of the microstrip circuit are serious, and the transmission loss of the circuit is large. Although metal waveguides have the advantages of low insertion ...

Claims

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Application Information

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IPC IPC(8): H01P3/00H01P1/20
CPCH01P1/20H01P3/00
Inventor 叶龙芳张威朱春辉肖亦凡柳清伙
Owner XIAMEN UNIV
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