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Polarization coupler

A wave splitter and polarization technology, which is applied in the direction of waveguide devices, waveguides, electrical components, etc., can solve the problems of unobtainable performance and small adjustment margin of isolation boards, etc.

Inactive Publication Date: 2014-08-20
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, the polarization duplexers described in Patent Documents 1 to 3 have the problem that the stepped transition portion connected to the circular main waveguide becomes a waveguide with a different diameter, and there is a problem on the side wall of the circular main waveguide. Therefore, the isolation plate is only arranged on either the side of the circular main waveguide or the side of the stepped transition part, so the adjustment margin for adjusting the length of the isolation plate is extremely small, and sometimes the desired performance cannot be obtained.

Method used

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Embodiment approach 1

[0090] Next, use Figure 1 to Figure 7 Embodiment 1 of the present invention will be described. figure 1 (a) is a top view of the polarization splitter, figure 1 (b) is the top view of the polarization splitter (the conductor wall (isolation plate) is indicated by the dashed line), figure 1 (c) is along figure 1 (a) A cross-sectional view of the polarization splitter shown by the dotted line AA, figure 1 The double-dashed line BB in represents the boundary of the circular waveguide and the function connecting the waveguide. image 3 (a) is a perspective side view of the polarization split-wave diagram (conductor walls (separator plates) are indicated by dashed lines), image 3 (b) is from image 3 (a) A side view of the polarization splitter observed by the arrow B described above. In the drawings, the same symbols denote the same or corresponding parts, and thus detailed description thereof will be omitted.

[0091] Figure 5 (a) is a perspective top view of the polar...

Embodiment approach 2

[0111] use Figure 8 ~ Figure 12 , Embodiment 2 of the present invention will be described. Figure 9 (a) is a perspective side view of a polarization splitter (conductor walls (isolation plates) are indicated by dashed lines), Figure 9 (b) is from Figure 9 (a) The side view of the polarization splitter observed by the arrow B described, Figure 11 (a) is a perspective top view of the polarization splitter (the coupling hole and the square auxiliary waveguide are omitted), Figure 11 (b) is a perspective top view of the polarization splitter (the coupling hole and the square auxiliary waveguide are omitted), Figure 12 (a) is a perspective side view of a polarization splitter (conductor walls (isolation plates) are indicated by dashed lines), Figure 12 (b) is from Figure 12 (a) The side view of the polarization splitter observed by the arrow B described, Figure 12 (c) is along Figure 12 (a) A cross-sectional view of the polarization demultiplexer along the dotted ...

Embodiment approach 1 and 2

[0117] In the polarization duplexer according to Embodiments 1 and 2, the circular waveguide 1 and the connection waveguide 3 are preferably integrally formed by a common processing method such as cutting or die-casting. It is also preferable that the conductor wall 4 is integrally formed together with the circular waveguide 1 and the connecting waveguide 3 by a common processing method such as cutting or die-casting. In addition, the connection between the connecting waveguide 3 and the square waveguide 2 may be connected by a common waveguide connection method.

[0118] In the case where the circular waveguide 1 and the connecting waveguide 3 are integrated, in Embodiment 1, the connecting waveguide 3 can be interpreted as being connected to the square waveguide 2 provided on the circular waveguide 1 In the tapered transition portion at one end, the conductor wall (separation plate) 4 is arranged across the region of the circular waveguide 1 and the tapered transition portio...

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Abstract

A polarization coupler includes: connector waveguide that connects circular waveguide with quadrangular waveguide arranged in an axial direction of circular waveguide and having short side shorter than an inner diameter of circular waveguide; flat conductor wall formed over connector and circular waveguides, and dividing the inside of connector and circular waveguides arranged parallel to an extending direction of long side of quadrangular waveguide; first inclined surface formed on inner wall of connector waveguide at a position facing one surface of conductor wall, and inclined toward conductor wall as coming closer to quadrangular waveguide; second inclined surface formed on the inner wall of connector waveguide at a position facing the other surface of conductor wall, and inclined toward conductor wall as coming closer to quadrangular waveguide; and coupling hole, formed in circular waveguide, for extracting one polarization-divided by conductor wall out of electromagnetic waves propagated through circular waveguide.

Description

technical field [0001] The present invention mainly relates to a polarization splitter for separating orthogonal polarized waves such as VHF frequency band, UHF frequency band, microwave band and millimeter wave band. Background technique [0002] In the past, the orthogonal polarization wave splitter includes: a circular main waveguide, which transmits orthogonally polarized waves; a coupling hole, which is arranged radially in order to bifurcate the circular main wavepipe; Rectangular auxiliary waveguide, the rectangular auxiliary waveguide takes out the vertical component electromagnetic wave of the orthogonally polarized wave in the orthogonal direction of the circular main waveguide through the coupling hole; the rectangular auxiliary waveguide, the rectangular auxiliary waveguide in the circular The horizontal component electromagnetic wave of the orthogonally polarized wave is taken out on the coaxial direction of the main waveguide; the step conversion part is used t...

Claims

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Application Information

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IPC IPC(8): H01P1/161H01P1/213
CPCH01P1/2131H01P3/127H01P5/082H01P1/161
Inventor 阿户弘人缝村修次水野友宏汤川秀宪大和田哲木全孝明
Owner MITSUBISHI ELECTRIC CORP
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