Fan-shaped loading sub-terahertz dielectric waveguide
A sub-terahertz and dielectric waveguide technology, applied in the field of terahertz dielectric waveguides, can solve problems such as the difficulty of low-loss transmission in sub-sub-Hz waveguides
Active Publication Date: 2021-06-08
NANTONG UNIVERSITY +1
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Problems solved by technology
However, when electromagnetic signals are transmitted, the system requires low dispersion and low loss transmission requirements for the waveguide, and the dielectric material has a certain absorption loss in the sub-sub-Hz frequency band, which brings difficulties to the low-loss transmission of the sub-sub-Hz waveguide. At the same time, the traditional The performance of the dielectric waveguide needs to be further improved in terms of dispersion characteristics
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[0012] The present invention will be further explained below in conjunction with the accompanying drawings.
[0013] Such as figure 1 , figure 2 As shown, a fan-shaped loaded sub-terahertz dielectric waveguide includes a cylindrical medium 1, three fan-shaped cylindrical media 2 are loaded on the surface of the cylindrical medium 1, and three fan-shaped cylindrical media 2 are placed on the circumference of the cylindrical medium 1 Evenly spaced. The cylindrical dielectric 1 and the fan-shaped cylindrical dielectric 2 are the same dielectric material with a low dielectric constant, which ensures that the entire waveguide has a certain degree of flexibility. At the same time, the loss tangent of the dielectric material used is small, less than 5 / 10,000, such as polytetrafluoroethylene and polyethylene, which provide the basis for low dielectric loss. The diameter of the cylindrical medium 1 is less than one wavelength, and the radial thickness of the fan-shaped cylindrical ...
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Abstract
The invention discloses a fan-shaped loading sub-terahertz dielectric waveguide. The fan-shaped loading sub-terahertz dielectric waveguide comprises a cylindrical medium, wherein a plurality of sector-ring-shaped cylinder mediums are loaded on the surface of the cylindrical medium, and the sector-ring-shaped cylinder mediums are uniformly distributed on the circumference of the cylindrical medium at intervals. The cylindrical medium and the sector-ring-shaped cylinder medium are made of the same low-dielectric-constant medium material. According to the invention, the plurality of sector-ring-shaped mediums are loaded outside a low-dielectric-constant dielectric cylinder with a diameter smaller than a wavelength, so the low-loss low-dispersion sub-terahertz dielectric waveguide is realized, and the structure of the waveguide is easy to bend and machine.
Description
technical field [0001] The invention relates to a terahertz dielectric waveguide. Background technique [0002] Terahertz (THz) waves are located between microwaves and infrared light, with a frequency range of 0.1-10 THz (that is, a wavelength of 30-3000 μm), belonging to submillimeter waves and far-infrared bands, and sub-THz (sub THz) is located in the terahertz The low end of the spectrum overlaps with the high end of the microwave band. Compared with traditional microwaves and light waves, sub-terahertz waves have the characteristics of low energy, high transmission, and coherence, and are widely used in communications, nondestructive testing, biomedicine, and environmental monitoring. Waveguide transmission is one of the effective solutions to reduce the energy attenuation of sub-terahertz waves during transmission, and research on sub-terahertz waveguides suitable for different needs has become an urgent need. Compared with metal waveguides, which have high conducto...
Claims
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IPC IPC(8): H01P3/16
CPCH01P3/16
Inventor 徐凯张凌燕施金刘栩郁梅
Owner NANTONG UNIVERSITY