DIELECTRIC WAVEGUIDE DEVICE

Abstract

A dielectric waveguide device for inputting from the outside and outputting electromagnetic waves of arbitrary frequencies includes the waveguide. The waveguide is provided in which the refractive index of the dielectric material of the waveguide is larger than the outer refractive index, and the propagation speed of electromagnetic waves in the inner region of the waveguide is slower than that in the outer region, the maximum dimensions in the width direction and/or the height direction of the waveguide, the lateral vibration mode curve of the electric field inherent in the waveguide and the electric field attenuation curve outside the waveguide are continuous on both sides of the waveguide in the width direction or the height direction, the electromagnetic waves in the lateral vibration mode of the electric field are transmitted in the form of cosine distribution or sine distribution.

Claims

1. A dielectric waveguide device for inputting from the outside and outputting electromagnetic waves of arbitrary frequencies, the dielectric waveguide device comprising: a waveguide provided in which a refractive index of a dielectric material of the waveguide is larger than an outer refractive index, and a propagation speed of electromagnetic waves in an inner region of the waveguide is slower than a propagation speed in an outer region, maximum dimensions in a width direction and/or a height direction of the waveguide having the dimensions specified by equation 1, a lateral vibration mode curve of an electric field inherent in the waveguide and an electric field attenuation curve outside the waveguide are continuous on both sides of the waveguide in the width direction or the height direction, the electromagnetic waves in the lateral vibration mode of the electric field are transmitted in a form of cosine distribution or sine distribution, while being totally internal reflected by both the width direction or the height direction of the waveguide, and the waveguide is provided an electrode structure inside or on a surface thereof in the width direction or the height direction, wherein the electrode structure is provided in which a plurality of electrodes extending in a radial direction are arranged at equal intervals with respect to an electromagnetic wave propagation direction, when a wavelength of the electromagnetic wave with respect to an electromagnetic wave propagation velocity outside the waveguide is λ.sub.0, a dimension -a- in the width direction or the height direction of the waveguide is determined so as to be constant with respect to λ.sub.0,
tan(k.sub.sa/2)=k.sub.f/k.sub.s or tan(k.sub.sa/2)=−k.sub.s/k.sub.f  Equation 1: a former equation is an equation when the electromagnetic wave is propagated in a cosine (cos) distribution, and a latter equation is an equation when the electromagnetic wave is propagated in a sine (sin) distribution; k.sub.s: Propagation constant in the electromagnetic wave low velocity region k.sub.f: Electromagnetic wave high velocity Region propagation constant a: the maximum dimension of the waveguide in X and/or Y directions.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0036] FIG. 1 is a partially cut perspective view showing a preferred embodiment of the dielectric waveguide device according to the present invention.

[0037] FIG. 2A is the diagram showing the structural example showing the relationship between an electrode and a dielectric.

[0038] FIG. 2B is the diagram showing the structural example showing the relationship between an electrode and a dielectric.

[0039] FIG. 2C is the diagram showing the structural example showing the relationship between an electrode and a dielectric.

[0040] FIG. 2D is the diagram showing the structural example showing the relationship between an electrode and a dielectric.

[0041] FIG. 2E is the diagram showing the structural example showing the relationship between an electrode and a dielectric.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[Example 1] Waveguide Using the Basic Mode with a Frequency of 10 GHz

[0042] When the waveguide uses the frequency of the basic mode, the size of the dielectric (optical glass) of the waveguide is set to width a=104.480 mm, thickness (y direction)=3 mm, and copper is used as the electrode material. The cross-sectional shape of the electrode was circular, the overall shape was columnar, the electrode dimensions were 2 mm in diameter, the maximum width was 104.480 mm, the electrode spacing P in the waveguide direction was 10.448 mm, and the total length of the electrodes was 106.480 mm.

[Example 2] Waveguide Using the Basic Mode with a Frequency of 1 THz

[0043] When the waveguide uses the frequency of the basic mode, the size of the dielectric (optical glass) of the waveguide is set to width a=1.0448 mm, thickness (y direction)=0.03 mm, and the electrode material is copper. The electrode cross-sectional shape is circular, the overall shape is columnar, the electrode dimensions are 0.02 mm in diameter, 1.0448 mm in maximum width, 0.10448 mm in the electrode spacing in the waveguide direction, and 1.0648 mm in total electrode length.

[Example 3] Waveguide Using the Basic Mode with a Frequency of 10 THz

[0044] When the waveguide uses the frequency of the basic mode, the size of the dielectric (optical glass) of the waveguide is set to width a=104.480 um, thickness (y direction)=3 um, and copper is used as the electrode material. The cross-sectional shape of the electrode was circular, the overall shape was columnar, and the electrode dimensions were 2 um in diameter, 104.48 um in maximum width, 10.448 um in the electrode spacing P in the waveguide direction, and 106.48 um in total electrode length.

[Example 4] Waveguide Using the Basic Mode with a Frequency of 100 THz

[0045] When the waveguide uses the frequency of the basic mode, the size of the dielectric (optical glass) of the waveguide is set to width a=10.448 um, thickness (y direction)=0.3 um, and the electrode material is copper. The electrode cross-sectional shape is circular, the overall shape is columnar, the electrode dimensions are 0.2 um in diameter, 10.448 um in maximum width, 1.0448 um in the electrode spacing in the waveguide direction, and 10.648 um in total electrode length.

[Example 5] Waveguide Using the Basic Mode with a Frequency of 1 MHz

[0046] When the waveguide uses the frequency of the basic mode, the size of the dielectric (optical glass) of the waveguide is set to width a=1044.8 m, thickness (y direction)=3 m, and copper is used as the electrode material. The cross-sectional shape of the electrode was circular, the overall shape was columnar, the electrode dimensions were 10 mm in diameter, the maximum width was 1044.8 m, the electrode spacing P in the waveguide direction was 104.48 m, and the total length of the electrodes was 1044.81 m.

[Example 6] Waveguide Using the Basic Mode with a Frequency of 10 MHz

[0047] When the waveguide uses the frequency of the basic mode, the size of the dielectric (optical glass) of the waveguide is set to width a=104.48 m, thickness (y direction)=3 m, and copper is used as the electrode material. The cross-sectional shape of the electrode was circular, the overall shape was columnar, the electrode dimensions were 10 mm in diameter, the maximum width was 104.48 m, the electrode spacing P in the waveguide direction was 10.448 m, and the total length of the electrodes was 104.49 m.

[Example 7] Waveguide Using the Basic Mode with a Frequency of 100 MHz

[0048] When the waveguide uses the frequency of the basic mode, the size of the dielectric (optical glass) of the waveguide is set to width a=10.4480 m, thickness (y direction)=0.3 m, and the electrode material is copper. The cross-sectional shape of the electrodes was circular, the overall shape was columnar, the dimensions of the electrodes were 10 mm in diameter, 10.448 m in maximum width, 1.0448 m in the electrode spacing in the waveguide direction, and 10.458 m in total length of the electrodes.

[Example 8] Waveguide Using the Basic Mode with a Frequency of 1 GHz

[0049] When the waveguide uses the frequency of the basic mode, the size of the dielectric (optical glass) of the waveguide is set to width a=1.0448 m, thickness (y direction)=30 mm, and copper is used as the electrode material. The cross-sectional shape of the electrodes was circular, the overall shape was columnar, the dimensions of the electrodes were 10 mm in diameter, 1.0448 m in maximum width, 0.10448 m in the electrode spacing P in the waveguide direction, and 1.0548 m in total length of the electrodes.

[Example 9] Waveguide Using the Basic Mode with a Frequency of 100 GHz

[0050] When the waveguide uses the frequency of the basic mode, the size of the dielectric (optical glass) of the waveguide is set to width a=10.448 mm, thickness (y direction)=0.3 mm, and the electrode material is copper. The electrode cross-sectional shape is circular, the overall shape is columnar, the electrode dimensions are 0.2 mm in diameter, 10.448 mm in maximum width, 1.0448 mm is the electrode spacing in the waveguide direction, and 10.648 mm is the total length of the electrodes.

DESCRIPTION OF REFERENCE NUMERALS

[0051] 10 Waveguide [0052] 11 Dielectric [0053] 12, 13 Input electrodes [0054] 22, 23 Output electrodes